To see the other types of publications on this topic, follow the link: Catfishes.
Journal articles on the topic 'Catfishes'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Catfishes.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Fitrawati, Rahmi AM, Muhamad Musbah, Muliadin Muliadin, Roni Hermawan, Renol Renol, and Mohammad Akbar. "PENGARUH KONSENTRASI PROTEIN IKAN LELE TERHADAP KANDUNGAN KIMIA DAN ORGANOLEPTIK KERUPUK IKAN." Jurnal Pengolahan Pangan 3, no. 1 (June 30, 2018): 28–31. http://dx.doi.org/10.31970/pangan.v3i1.10.
Full textAbstract:
Catfish is one of potential fisheries products in Central Sulawesi, but this fact is not in line with community consumption level. Catfishes contain protein and fatty acid which are good for health. The use of catfishes as fish chips become one of the way out to increase the community consumption level. This research aims at knowing the effect of catfishes protein concentration toward chemical content (water content, ash content) and organoleptics. The research result shows that the treatment of catfishes protein concentration is unsignifficantly effect the water and ash content, besides the result of hedonic test shows that the concentration signifficantly effect the taste, the smell and the texture of catfish chips but unsignifficanly effect the colour of it. The treatment by adding 200 g of catfish was being the panels’ most favorite treatment with a score of 4.5 or with the rounding 5 indicated as favored.
2
Stolbunov, I. A., V. A. Gusakov, Tran Duc Dien, and Nguyen Thi Hai Thanh. "Food Spectrum, Trophic and Length-Weight Characteristics of Nonindigenous Suckermouth Armored Catfishes Pterygoplichthys spp. (Loricariidae) in Vietnam." Inland Water Biology 14, no. 5 (September 2021): 597–605. http://dx.doi.org/10.1134/s1995082921050163.
Full textAbstract:
Abstract The food spectrum and trophic and length–weight characteristics of an invasive species, South American suckermouth armored catfishes Pterygoplichthys spp. (Loricariidae), from lotic and lentic inland waters of Vietnam have been studied. It is found that the diet of suckermouth armored catfishes consists of plant and animal food, as well as organic detritus. According to the predominant type and pattern of feeding, suckermouth armored catfishes can be classified as detritivore gatherers (janitor). Some specimens of catfish with a high consumption of animal food have been identified. It is noted that invasive suckermouth armored catfishes can be a significant food competitor for aboriginal fish species; detritivores; and, possibly, benthophages in the lotic and lentic inland waters of Vietnam.
3
Lim, Leonard Whye Kit, Hung Hui Chung, and Han Ming Gan. "Genome-Wide Identification, Characterisation and Phylogenetic Analysis of 52 Striped Catfish (Pangasianodon hypophthalmus) ATP-Binding Cassette (ABC) Transporter Genes." Tropical Life Sciences Research 33, no. 2 (July 15, 2022): 257–93. http://dx.doi.org/10.21315/tlsr2022.33.2.12.
Full textAbstract:
Abstract: The Pangasianodon hypophthalmus (striped or tra catfish) is a Pangasiidae family member famous for its high unsaturated fatty acid content flesh. This riverine catfish can breathe in the air unlike the channel catfish. One of the most well-known ecotoxicological protein superfamily, the ATP-binding cassette (ABC) transporters, has been characterised in channel catfish through a genome-wide approach. Therefore, it is interesting to unearth these proteins within the striped catfish genome for a comprehensive comparison across all catfishes available. A total of 52 ABC transporters were discovered from the striped catfish genome. The motif analysis has unconcealed various unshared characteristics of some catfishes. The phylogenetic analysis has evidenced its effectiveness in the successful annotations of these transporter proteins. Duplicated genes such as ABCA1, ABCB3, ABCB6, ABCC5, ABCD3, ABCE1, ABCF2 as well as ABCG2 were uncovered within the striped and channel catfish genomes. This entire set of ABC transporters yields precious genomic data for future ecotoxicological, biochemical and physiological research in striped catfish.
4
Skelton, Paul. "Catfishes." African Journal of Aquatic Science 30, no. 1 (January 2005): 97–100. http://dx.doi.org/10.2989/16085910509503842.
Full text
5
Murray, Alison M., and Robert Holmes. "Osteology of the cranium and Weberian apparatus of African catfish families (Teleostei: Ostariophysi: Siluriformes) with an assessment of Palaeogene genera." Vertebrate Anatomy Morphology Palaeontology 9, no. 1 (March 2, 2022): 156–91. http://dx.doi.org/10.18435/vamp29382.
Full textAbstract:
Although the vast majority of fossil catfish material is isolated elements such as fin spines, a number of fossil catfishes (Siluriformes) have been named based on articulated crania from Palaeogene formations of Africa. The fossil taxa from marine sediments have been assigned to the extant marine family Ariidae, or have been assumed to have washed into marine sediments from freshwater habitats. The ability to assess the relationships of these fossils without reference to the nature of the geological sediments may provide insight into the history of these families. Most of the taxonomic work on the 11 catfish families found in Africa has focused on soft-tissues or DNA, which is problematic for the fossil material. Here we provide osteological features to distinguish families of African catfishes; eight of the families that are likely to be found in fossiliferous deposits can be distinguished based on a combination of skull features including the morphology of the cranial fontanelle, mesethmoid, and dermal ornamentation. We reassess the familial placement of the Palaeogene catfishes. We find that †Eomacrones wilsoni, from the Palaeocene of Nigeria, belongs in Bagridae s.s. This confirms that bagrids were in Africa much earlier than the Miocene. Because this catfish comes from Palaeocene marine sediments, the biogeographic history of Bagridae needs to be reassessed to consider marine dispersal in this taxon.
6
Diogo, Rui, Pierre Vandewalle, and Michel Chardon. "On the osteology and myology of the cephalic region and pectoral girdle of Heteropneustes fossilis (Siluriformes: Heteropneustidae), with comments on the phylogenetic relationships between Heteropneustes and the clariid catfishes." Animal Biology 53, no. 4 (2003): 379–96. http://dx.doi.org/10.1163/157075603322556283.
Full textAbstract:
AbstractThe osteological and myological structures of the cephalic region and pectoral girdle of the Asiatic catfish Heteropneustes fossilis are described and compared with those of several other catfishes, as the foundation for an analysis on the phylogenetic relationships of the genus Heteropneustes. Our observation and comparisons support a close relationship between Heteropneustes and the clariid catfishes. More specifically, the present study supports De Pinna's 1993 study, according to which Horaglanis and Uegitglanis, two genera commonly included in the family Clariidae, are the successive sister-groups of a monophyletic clade composed by the genus Heteropneustes and the remaining clariid genera.
7
Isinkaye, M. O., F. S. Ajilu, S. B. Ibikunle, and O. S. Ajayi. "COMMITTED EFFECTIVE DOSE FROM NATURAL RADIONUCLIDES IN FARM-RAISED AND WILD CATFISH IN IBADAN, NIGERIA." Radiation Protection Dosimetry 193, no. 1 (January 2021): 1–7. http://dx.doi.org/10.1093/rpd/ncab011.
Full textAbstract:
Abstract There is extensive contamination of the aquatic environment when rivers and streams flow through areas of high human activities such as industrial cities and major towns. These contaminations may include enhanced background levels of naturally occurring radioactive materials resulting from rapid urbanization and other human activities. The natural radionuclides (40K, 238U (226Ra) and 232Th (228Ra)) contents of farm-raised and wild catfish in five fish farms and three major rivers within Ibadan metropolis have been studied using gamma spectrometry. The results indicate that the average committed effective doses from the ingestion of the two sets of catfishes are 104 ± 37 and 104 ± 32 μSv/y for farm-raised and wild catfish, respectively. It can be concluded that the consumption of the catfishes poses no immediate radiological hazards to the population of the study area.
8
Diogo, Rui, and Roger Bills. "Osteology and myology of the cephalic region and pectoral girdle of the South African catfish Austroglanis gilli, with comments on the autapomorphies and phylogenetic relationships of the Austroglanididae (Teleostei: Siluriformes)." Animal Biology 56, no. 1 (2006): 39–62. http://dx.doi.org/10.1163/157075606775904740.
Full textAbstract:
AbstractThe cephalic and pectoral girdle structures of the South African catfish Austroglanis gilli are described and compared with those of other catfishes, either studied by us or described in the literature, as the foundation for a discussion on Austroglanididae autapomorphies, and also on the phylogenetic relationships between the austroglanidids and the other catfishes. Our observations, comparisons, and bibliographical overview revealed only two Austroglanidae autapomorphies, namely: 1) the peculiarly shaped, posteriorly bifurcated sesamoid bone 1 of the suspensorium; and 2) the markedly broad fourth basibranchial. Another feature, the marked lateral bifurcation of the anterodorsolateral laminar projection of the sphenotic bone, may eventually constitute an additional austroglanidid autapomorphy, but, perhaps more reasonably, be a synapomorphic feature to support a close relationship between A. gilli and A. barnardi. With respect to the phylogenetic position of the Austroglanididae within the Siluriformes, these fishes seem to be closely related to the ictalurid and the cranoglanidid, and particularly to the ariid and the claroteid catfishes.
9
Begum, Rowshan Ara, Dilshad Tamanna Rahman, Md Abdul Rashid, Md Shamimul Alam, and Reza Md Shahjahan. "Comparison of Esterase Isozyme Variability in Some Selected Tissues of the Asian and African Catfishes (Siluriformes: Clariidae)." Bangladesh Journal of Zoology 40, no. 1 (December 9, 2012): 43–50. http://dx.doi.org/10.3329/bjz.v40i1.12893.
Full textAbstract:
Variation in esterase isozymes expression of 19 different tissues of the Asian catfish (Clarias batrachus) and African catfish (C. gariepinus) was studied. These tissues were: liver, anterior muscle, mid muscle, tail muscle (ventral region), tail muscle (tip region), buccal muscle, stomach, foregut, midgut, hindgut, kidney, gill, heart, eye (lens), eye (black portion), pelvic muscle, fore-, mid- and hind-brain. Maximum five esterase bands, viz. Est-11.83, Est-21.50, Est-31.15, Est-41.00 and Est- 50.17 were observed in the Asian catfish and four bands, viz. Est-21.50, Est-31.15, Est-41.00 and Est-50.17 in the African catfishes. Tissue specific localization of the isozymes was observed in both Asian and African catfishes. Comparatively higher esterase activity was found in digestive tissues. Higher number of esterase bands was found in C. batrachus which seems to be an indication of its greater allelic variation in esterases than those in the C. gariepinus. DOI: http://dx.doi.org/10.3329/bjz.v40i1.12893 Bangladesh J. Zool. 40(1): 43-50, 2012
10
Azpelicueta, María de las Mercedes, Alberto Luis Cione, Mario Alberto Cozzuol, and Juan Marcos Mirande. "Kooiichthys jono n. gen. n. sp., a primitive catfish (Teleostei, Siluriformes) from the marine Miocene of southern South America." Journal of Paleontology 89, no. 5 (September 2015): 791–801. http://dx.doi.org/10.1017/jpa.2015.52.
Full textAbstract:
AbstractA specimen of a remarkable new catfish genus and species was collected in middle/late Miocene marine beds of the Puerto Madryn Formation at the base of the marine cliff of the sea lion colony area near Puerto Pirámide, southern coast of Península Valdés, northeastern Patagonia, Argentina. Siluriforms (catfishes) constitute a most important monophyletic ostariophysan group of mainly freshwater fishes that occurs in almost all continents but it is especially diverse in South America. Catfishes are presently distributed in tropical to temperate areas and a small number of species are marine or amphibiotic. The new catfish shows many primitive features for catfishes in the maxilla, autopalatine, hyal elements, and Weberian apparatus. The genus is clearly distinguished by four autapomorphies: sand clock–shaped autopalatine, posterior limb of autopalatine widening strongly, post-articular arm of autopalatine longer, and a metapterygoid longer than broad. One tree was obtained both under equal and implied weighting with the following topology: a basal polytomy in the Siluriformes formed by Diplomystidae, Bachmanniidae, Kooiichthys and the Siluroidei. The new species appears to have been a marine or amphibiotic taxon: it was collected in beds considered to represent the Maximum Flooding Horizon of the transgression that deposited the Puerto Madryn Formation. The coast at this moment was at approximately 90 km to the west. According to faunistic evidence, the sea was warm temperate.
11
Kubicek, Kole M. "Developmental osteology of Ictalurus punctatus and Noturus gyrinus (Siluriformes: Ictaluridae) with a discussion of siluriform bone homologies." Vertebrate Zoology 72 (August 12, 2022): 661–727. http://dx.doi.org/10.3897/vz.72.e85144.
Full textAbstract:
Abstract The skeleton of Siluriformes is characterized by several autapomorphies, including secondary absence, extreme modification, and purported fusion of several ossifications. Although well documented in adults, information on skeletal development in catfishes is relatively sparse and typically focused on particular regions of the skeleton (e.g., Weberian apparatus). To further our understanding of the siluriform skeleton, I document the development of the entire skeleton in two ictalurid species, Ictalurus punctatus (channel catfish) and Noturus gyrinus (tadpole madtom) from five days pre-hatch to adult. I reexamine the homologies of bones previously hypothesized to represent compound elements in catfishes as well as an additional element only known to occur in some ictalurids. Development of the skeleton is complete in I. punctatus at 22.4 mm SL and almost complete in N. gyrinus (except dorsal- and anal-fin distal radials) at 14.1 mm SL. No signs of ontogenetic fusion were observed in any of the purported compound elements. Previous hypotheses of the homology of these elements and of additional ossifications are reviewed in light of developmental information obtained herein. No dermal parietal component is present at any stage in the so-called parieto-supraoccipital. The bone is the supraoccipital which ossifies from two lateral centers of ossification which later fuse, rather than from a median center. The ‘posttemporo-supracleithrum’ originates from a single center of ossification and represents the supracleithrum. The posttemporal is present in ictalurids and many other catfishes as a canal-bearing bone between the supracleithrum and the pterotic, a bone sometimes identified as the extrascapular. The extrascapular is missing in catfishes. Ictalurids have an additional dermal bone above the posttemporal, which is either an independently ossifying fragment of the posttemporal or a neoformation restricted to some members of this family. The single chondral bone of the pectoral girdle originates from a single center of ossification that represents the coracoid. The scapula is missing in catfishes. Dorsal-fin distal radial 2 is absent in catfishes and the foramen of dorsal-fin spine 2 is formed from modifications to the base of the fin-ray itself. Unlike loricarioid catfishes, the urohyal of ictalurids originates solely as an ossification of the sternohyoideus tendons. The anteriormost infraorbital element ossifies from a single center of ossification around the infraorbital sensory canal and represents the lacrimal. The antorbital is missing in catfishes. Finally, skeletal development of I. punctatus is compared to that available for other otophysans, including the cypriniforms Danio rerio and Enteromius holotaenia and the characiform Salminus brasiliensis.
12
Umaru, I. L., T. C. Okoh, and R. C. Ishiwu. "PROFITABILITY OF CATFISH PRODUCTION IN ENUGU METROPOLIS, ENUGU STATE, NIGERIA." Open Journal of Agricultural Science (ISSN: 2734-214X) 2, no. 2 (July 26, 2021): 1–11. http://dx.doi.org/10.52417/ojas.v2i2.229.
Full textAbstract:
The study was carried out in Enugu Metropolis, Enugu State, to investigate the profitability of catfish production. Specifically, the study described the socioeconomic characteristics of catfish farmers; estimated cost and returns of catfish production and identified constraints to catfish production in the study area. Data were collected from 120 respondents who were purposively chosen in the three Local Government Areas that made up Enugu Metropolis, using questionnaires. The data were analyzed using descriptive statistics, the Gross margin model and a 3-point Likert type rating scale. The study showed that 61.7% of the respondents were males with a majority (95.0%) below the age of 45 years. The study revealed that from every 1000 fingerlings that were stocked, 980 catfishes were harvested with an average weight of 1.5kg in a period of 6 months. The catfish farmers expended an average total cost of N575,168 and made an average total revenue of N1,176,000. This indicates a survival rate of 98% of catfishes that was reared in the area. The gross margin analysis revealed a gross margin of N652,700.00 with a net farm income of N600,832.00 for every 1000 catfishes that were raised to maturity at1kg. For every 1N invested in the business, there was a return of N1.25 (RCI). The study concludes that catfish production in the study area was dominated by males in their active age who were well educated. Catfish production was very profitable in the study area. The constraints facing the farmers were the high cost of feeds, insufficient capital and poor extension services. These farmers could handle large scale production if capital is made available to them which will also allow them to make more profits and become employers of labour. The study recommends that educated unemployed youths in the area should be encouraged to go into catfish farming since the business is very profitable. Soft loans should be made available by credit agencies for the catfish farmers in the area to enable them to increase their scale of operation and the farmers should form and manage functional cooperative societies to enable them to achieve economies of scale.
13
Senthilkumaran, Balasubramanian, and Sonika Kar. "Advances in Reproductive Endocrinology and Neuroendocrine Research Using Catfish Models." Cells 10, no. 11 (October 20, 2021): 2807. http://dx.doi.org/10.3390/cells10112807.
Full textAbstract:
Catfishes, belonging to the order siluriformes, represent one of the largest groups of freshwater fishes with more than 4000 species and almost 12% of teleostean population. Due to their worldwide distribution and diversity, catfishes are interesting models for ecologists and evolutionary biologists. Incidentally, catfish emerged as an excellent animal model for aquaculture research because of economic importance, availability, disease resistance, adaptability to artificial spawning, handling, culture, high fecundity, hatchability, hypoxia tolerance and their ability to acclimate to laboratory conditions. Reproductive system in catfish is orchestrated by complex network of nervous, endocrine system and environmental factors during gonadal growth as well as recrudescence. Lot of new information on the molecular mechanism of gonadal development have been obtained over several decades which are evident from significant number of scientific publications pertaining to reproductive biology and neuroendocrine research in catfish. This review aims to synthesize key findings and compile highly relevant aspects on how catfish can offer insight into fundamental mechanisms of all the areas of reproduction and its neuroendocrine regulation, from gametogenesis to spawning including seasonal reproductive cycle. In addition, the state-of-knowledge surrounding gonadal development and neuroendocrine control of gonadal sex differentiation in catfish are comprehensively summarized in comparison with other fish models.
14
Shibuya, Akemi, and Jansen Zuanon. "Catfishes as prey items of Potamotrygonid stingrays in the Solimões and Negro rivers, Brazilian Amazon." Biota Neotropica 13, no. 1 (March 2013): 376–79. http://dx.doi.org/10.1590/s1676-06032013000100041.
Full textAbstract:
In spite of the fact that catfish have rarely been reported as food items in the diets of freshwater stingrays, they are commonly observed in the stomach contents of species inhabiting the Solimões and Negro rivers in the Brazilian Amazon. The stomach contents of six rays from the Solimões River and 64 from the Negro River were analyzed, and catfishes (distributed among the families Callichthyidae, Cetopsidae, Doradidae and Loricariidae) were found in the stomach contents of four and 10 of these rays, respectively, comprising a frequency of occurrence of 20%. These data indicate a relevant participation of catfishes in the diets of potamotrygonid rays in the Amazon, and may reflect the regional diversity and abundance of Siluriformes in the region.
15
Tuckett, Quenton M., Timothy J. Lyons, and Jeffrey E. Hill. "Thermal tolerance for three ornamental tankbuster catfishes." Aquatic Invasions 18, no. 4 (November 8, 2023): 533–42. http://dx.doi.org/10.3391/ai.2023.18.4.112766.
Full textAbstract:
Pet abandonment is an important introduction vector for freshwater aquarium fishes, as unwanted pets become too large for tank dimensions and are released into the environment. Concerns over pet abandonment may be particularly important for the U.S. state of Florida, which exhibits abundant access to freshwater habitats and a climate more favorable to tropical aquarium fishes than other continental U.S. states. Numerous studies have examined the factors affecting establishment for non-native species, including the importance of propagule pressure and climate suitability. For freshwater aquarium species, maximum body size can increase pet abandonment because they grow too large for the tank dimensions (i.e., “tankbusters”). Thus, large maximum body size may increase propagule pressure due to intentional release. In addition to being introduced in sufficient numbers, a match between the thermal tolerance of a species and the thermal habitat is necessary for establishment. Several large-bodied catfishes are found in the aquarium trade, including the goonch Bagarius spp., redtail catfish Phractocephalus hemioliopterus, and tiger sorubim Pseudoplatystoma tigrinum. Here, we experimentally determined the chronic lethal minimum temperature (CLmin) for the three catfishes. CLMin estimates for these three species were higher than many other ornamental species, highest for the redtail catfish (14.3 °C), lower for the tiger sorubim (11.0 °C), and lowest (9.9 °C) for the goonch. Given these lethal temperatures, the distribution of redtail catfish would be limited to South Florida while the tiger sorubim and goonch could live, provided other habitat characteristics are suitable, up to ~28°N Latitude in Florida.
16
Alam, Mohammad Shamimul, Hawa Jahan, Rowshan Ara Begum, and Reza M. Shahjahan. "Differentiation Of Clarias Batrachus, C. Gariepinus And Heteropneustes Fossilis By Pcr-Sequencing Of Mitochondrial 16s Rrna Gene." Journal of the Asiatic Society of Bangladesh, Science 41, no. 1 (June 16, 2015): 51–58. http://dx.doi.org/10.3329/jasbs.v41i1.46190.
Full textAbstract:
Heteropneustesfossilis, Clariasbatrachus and C. gariepinus are three major catfishes ofecological and economic importance. Identification of these fish species becomes aproblem when the usual external morphological features of the fish are lost or removed,such as in canned fish. Also, newly hatched fish larva is often difficult to identify. PCRsequencingprovides accurate alternative means of identification of individuals at specieslevel. So, 16S rRNA genes of three locally collected catfishes were sequenced after PCRamplification and compared with the same gene sequences available from othergeographical regions. Multiple sequence alignment of the 16S rRNA gene fragments ofthe catfish species has revealed polymorphic sites which can be used to differentiate thesethree species from one another and will provide valuable insight in choosing appropriaterestriction enzymes for PCR-RFLP based identification in future.
Asiat. Soc. Bangladesh, Sci. 41(1): 51-58, June 2015
17
Amin, Muhammad, Mohammad Shoaib, Ghulam Nabi, Naveed Ahmed, and Muhammad Kifayatullah. "A Comprehensive Review on Fishery Biology of Catfishes." Journal of Biology and Life Science 7, no. 1 (October 13, 2015): 1. http://dx.doi.org/10.5296/jbls.v7i1.8421.
Full textAbstract:
Cat fish exploit a large diversity of both plant and animal protein, and adapt harsh environmental conditions as they have the ability to take atmospheric oxygen. Marine catfish tolerate a broad range of salinities between Open Ocean and fresh water. The entire catfishes have soft as well as scaleless body, are greatly appreciated by consumers and maintain healthy in both fresh and dried condition. In this review article various aspects of cat fish has been discussed.
18
Farooq, Noureen, and Sher Khan Panhwar. "Taxonomic and Otolith Shape Parameters of Nine Sympatric Catfishes Commercially Harvested in Pakistan." Croatian Journal of Fisheries 81, no. 1 (March 1, 2023): 23–32. http://dx.doi.org/10.2478/cjf-2023-0003.
Full textAbstract:
Abstract Accurate reorganization of harvested species is essential for appropriate fisheries monitoring but often unnoticed. In this study, an attempt was made to provide an accurate species description based on fish taxonomy and otolith shape parameters of nine sea catfishes living in Pakistan. The lapillus, the largest otolith of catfishes, includes the position of the umbo, the structure of the anterior mesial projection (amp), the incisura linea basalis (ilb) and sulcus lapilli marks (slm) in nine ariid catfishes were evaluated. Discriminant function analysis was performed using twenty-two morphometric parameters showed significant variations between the length of the maxillary barbel, adipose length and preorbital length, which were highlighted as basic discriminating characters. Species without barbells, such as Batrachocephalus mino and Osteogeneiosus militaris, were found to be distant. The taxonomic characters of the genera Netuma and Plicofollis overlapped due to a short adipose fin length. Nevertheless, species Arius arius, Sciades sona and Nemapterxy caelatus differed in a moderate adipose fin length. The preorbital length of Netuma bilineata has a short and rounded snout, while N. thalassina has a long and pointed snout, which is a distinguishing characteristic of both species. The coincident use of fish taxonomy and otolith shape parameters is an effective tool for catfish identification could be helpful in appropriate fisheries sampling programs and management in Pakistan whenever implemented.
19
Putri, Nadilla Chrisantya Yusuf, Lucia Tri Suwanti, Sunaryo Hadi Warsito, Nunuk Dyah Retno Lastuti, Dadik Rahardjo, and Suhita Aryaloka. "Detection of Ectoparasites in Farmed Striped Catfish (Pangasius hypophthalmus) in Karangpilang, Surabaya, Indonesia." Veterinary Biomedical and Clinical Journal 5, no. 2 (July 1, 2023): 63–69. http://dx.doi.org/10.21776/ub.vetbioclinj.2023.005.02.4.
Full textAbstract:
This research aimed to identify ectoparasites infecting farmed striped catfish in Karangpilang Surabaya, Indonesia. Individual catfishes with visible lesions on the body surface and abnormal behaviors were included in the study. Mucilage samples of 90 fishes were examined under a microscope for the presence of ectoparasite on the body surface of the fish, in the area of gills, skins, fins, and tails. Gills were cut with scissors and combed with a tweezer. Skin and fin were also scrapped with a sterile scalpel. The mucus obtained was put on an object glass and was observed under the microscope. The fish pond water was analysed for Oxygen Demand (DO), pH and temperature three times two weeks apart, starting from the day of fish sampling. Results showed that 42.2% (n=90) of samples were infected by ectoparasites. The ectoparasites identified were Gyrodactylus sp., Dactylogyrus sp., Trichodina sp. and Chilodonella sp. Fish pond water in the study site was of suitable quality for the growth of catfish. This study suggested that pathogens other than ectoparasites play roles in the development of pathologic conditions of stripped catfishes in the study area.
20
Gustiano, Rudhy. "Pangasiid Catfishes of Indonesia." Buletin Plasma Nutfah 15, no. 2 (October 10, 2016): 91. http://dx.doi.org/10.21082/blpn.v15n2.2009.p91-100.
Full textAbstract:
<p>Pangasiidae are economically important riverine catfishes generally occurring in freshwater from the Indian subcontinent to the Indonesian Archipelago. Morphologically, they are recognized by a laterally compressed body, two pairs of barbels, a short dorsal fin with two spines, a well developed adipose fin, a long anal fin, and a strong pectoral spine. The systematics of this family are still poorly known. Consequently, the lack of this basic information is a great barrier in understanding the biology and hence the study of the aquaculture potential of species, the improvement of their seed production and growth performance. Objectives of the study are to present all species and genera of pangasiid catfishes of Indonesia including their distribution and detailed identification.</p><p> </p><p><strong>Abstrak</strong></p><p>Kelompok ikan pangasius atau pangasiidae merupakan jenis penting ikan &ldquo;catfish&rdquo; (bersungut) yang hidup di air tawar dan tersebar dari daratan India hingga kepulauan Indonesia. Secara umum ikan ini memiliki bentuk tubuh memanjang dan ramping, dua pasang sungut, sirip punggung yang relatif pendek dengan dua duri keras, sirip lunak tambahan yang berkembang sempurna sebagai pengontrol renang, dan tulang sirip dada yang kuat. Secara sistematik, kelompok ikan pangasius masih belum dikenal secara baik. Oleh karena itu, kurangnya informasi dasar yang dimiliki pada kelompok ikan ini merupakan hambatan utama untuk memahami sifat-sifat biologinya, pengembangan budidayanya, produksi benih, dan perbaikan keragaannya. Tujuan dari studi yang dilakukan adalah untuk menyajikan semua spesies dan genus ikan pangasius yang ada di Indonesia mencakup distribusi, sebaran, dan kunci identifikasinya secara detail.</p>
21
ALVES, PHILIPPE V., ALAIN DE CHAMBRIER, JOSÉ L. LUQUE, and TOMÁŠ SCHOLZ. "Towards a robust systematic baseline of Neotropical fish tapeworms (Cestoda: Proteocephalidae): amended diagnoses of two genera from the redtail catfish, Phractocephalus hemioliopterus." Zootaxa 4370, no. 4 (January 12, 2018): 363. http://dx.doi.org/10.11646/zootaxa.4370.4.3.
Full textAbstract:
Species of two monotypic genera, Ephedrocephalus Diesing, 1850 and Zygobothrium Diesing, 1850 (Cestoda: Proteocephalidae), parasites of one of the most basal members of the catfish family Pimelodidae, the redtail catfish, Phractocephalus hemioliopterus, in the Neotropical Region, are redescribed based on the evaluation of type specimens and newly collected material. Generic diagnoses are amended to provide a robust baseline for the future re-arrangement of the classification of proteocephalid cestodes. Ephedrocephalus is typified by the medullary position of the ovary and uterus, the cortical distribution of vitelline follicles (dispersed throughout almost the entire ventral cortex) and the testes in one dorsal field. Zygobothrium is primarily characterized by its possession of a robust scolex bearing four uniloculate suckers with two openings each and by the tetralobed velum (laciniations) on every proglottid (two on the ventral and two on the dorsal side). The redtail catfish is the definitive host of as many as seven species of proteocephalid cestodes, which, however, do not represent a monophyletic group. Some species, including Z. megacephalum, are among the earliest diverged parasites of Neotropical catfishes, being closely related to African and North American proteocephalids from catfishes, whereas others such as E. microcephalus belong to more recently diverged taxa with uncertain interrelations. Unlike most proteocephalids of the redtail catfish, which almost always infect the anterior parts of the host intestine, E. microcephalus and Z. megacephalum occur exclusively in its posterior third. A key to the identification of the proteocephalid species parasitizing P. hemioliopterus is also presented.
22
Garrone Neto, Domingos, and Virgínia Sanches Uieda. "Ingestion of catfish by freshwater stingray: possible mistake or inexperience." Biota Neotropica 9, no. 4 (December 2009): 265–67. http://dx.doi.org/10.1590/s1676-06032009000400029.
Full textAbstract:
We report an individual of the freshwater stingray Potamotrygon falkneri caught with a decomposing catfish, Pimelodella gracilis, stuck in its oral cavity. The ingestion of catfishes by stingrays is possibly rendered difficult or hazardous due to the serrated spines on the dorsal and pectoral fins of this prey type. There are at least two possible explanations for the rotting catfish we found stuck in the mouth of a potamotrygonid ray: mistake or inexperience of the analyzed specimen. Both possibilities may be due to the fact that the ray was a young individual.
23
LARDIZABAL, CLAUDIA C., EDIS M. BENITEZ, and WILFREDO A. MATAMOROS. "Record of the Non-native Suckermouth armored catfish hybrid Pterygoplichthys pardalis (Castelnau,1985) x Pterygoplichtys disjunctivus (Weber, 1991) (Siluriformes: Loricariidae) in Honduras." Zootaxa 4778, no. 3 (May 15, 2020): 593–99. http://dx.doi.org/10.11646/zootaxa.4778.3.10.
Full textAbstract:
Loricariidae is the largest catfish family, with over 1000 species and 80 genera (Fricke & Eschmeyer, 2019). Sailfin catfishes of the genus Pterygoplichthys are armored catfishes, native to temperate and tropical areas of South America, especially the Amazon (Wakida-Kusunoki & del Angel, 2011). Two species of this genus (Pterygoplichthys pardalis (Castelanu, 1855) and P. disjunctivus (Weber, 1991)) are naturally distributed in South America along the lower, middle and upper basin of the entire Amazon River (Wakida-Kusunoki & del Angel, 2008). These armored catfishes, typified by the presence of ossified plates through the body, are considered very successful invaders of rivers and lakes outside their natural range. Their invasion success has been attributed to their morphology, behavior and life history. For instance, their ability to withstand droughts and cold weather by using burrows in river and lake banks they can survive in the moist habitat even when water levels decrease below the opening of the burrows, these survival characteristics of harsh conditions enable them to thrive in native and non-native grounds (Burgess 1989; Hoover & Killgore 2004; Nico & Martin 2001; Sandoval-Huerta et al. 2012). Furthermore, their rapid growth during their first years of life, their reproductive traits such as an extended reproductive period, high egg yield (Rueda-Jasso et al. 2013), and the capability of achieving reproductive maturity at smaller size (Wei et al. 2017) allow introduced populations to become abundant in a short period of time.
24
Pusey, Bradley J., Timothy D. Jardine, Stuart E. Bunn, and Michael M. Douglas. "Sea catfishes (Ariidae) feeding on freshwater floodplains of northern Australia." Marine and Freshwater Research 71, no. 12 (2020): 1628. http://dx.doi.org/10.1071/mf20012.
Full textAbstract:
Flooding of the terminal floodplains of northern Australian rivers provides a greatly expanded, productive habitat accessed by both freshwater and estuarine fishes. This study aimed to determine the extent to which sea catfishes (Ariidae) make use of floodplains and the reasons for doing so (i.e. spawning, feeding). Nine species were collected from floodplains and adjacent distributaries of the Mitchell and Flinders rivers; floodplain use was largely restricted to freshwater species. Evidence of prior wet season spawning was recorded for some species, and mesenteric lipid deposits indicated that fish were in good condition. However, little evidence of spawning on floodplains was found. Stomach content analysis and stable isotope analysis indicated dietary partitioning, particularly between freshwater and estuarine species, but also within freshwater species, and indicated that some species were responsive to variations in food availability. Isotope analyses suggest extensive movement between freshwater, estuarine and marine habitats at different life history stages for the catfish assemblage studied. Terminal floodplains of northern Australian rivers provide important temporary habitat for adult sea catfishes to feed upon, but do not appear to be used as spawning grounds.
25
Chiaaondo, Ikyo Benjamin, Okoroafor Chinedu Henry, and Umawam Samuel Fanyam. "Nutritive and sensory value assessment of smoked dried catfishes from two indigenous markets in Benue state, Nigeria." Ruhuna Journal of Science 13, no. 2 (December 31, 2022): 141–49. http://dx.doi.org/10.4038/rjs.v13i2.121.
Full textAbstract:
Nutritional assessment of processed fish is needed to ensure that such products sold in the local communities are safe for human consumption. Present study aimed at evaluating the nutritional quality of selected catfishes, namely, Clarias gariepinus, Heterobranchus spp and Synodontis spp from Abinsi and Wadata fish markets in Benue State, Nigeria. Samples of smoked catfish each weighing approximately 500 g were sourced from Abinsi and Wadata fish markets, and packaged using foil paper and polythene bags. The smoked fish samples were analysed to determine organoleptic qualities, proximate and mineral composition. The results of the study revealed a significant (p<0.05) variation in proximate and mineral composition of the three smoked catfishes between the two markets. The percentage moisture content for the three species of catfish ranged from 8.19 ± 0.031 to 10.34 ± 0.035%. Synodontis spp. from Abinsi market had the least moisture content (8.19 ± 0.031%) while Heterobranchus spp. from Wadata market had the highest moisture content (10.34 ± 0.035%). Protein content of the three species ranged from 55.80 ± 0.060 to 68.97 ± 0.125%. C. gariepinus from Wadata market had the highest protein content (68.97 ± 0.125%). The lipid content of the fish ranged from 10.37 ± 0.023 to 22.68 ± 0.035. The most abundant mineral was Potassium (K) and was more abundant in C. gariepinus from Wadata market which had the highest K content (410.15 ± 0.895 mg/100 g). Heterobranchus spp. had the highest Calcium (Ca) content (395.48 ± 0.499 mg/100 g), Sodium (Na) (39.84 ± 0.045 mg/100 g) and Zinc (Zn) (0.80 ± 0.015 mg/100 g) while the highest concentration (12.0 ± 0.093 mg/100 g) of Iron (Fe) was recorded in Synodontis spp. The concentrations of Cu, Zn, and Fe in the three species across the markets were well above WHO permissible limits of 20-30 ppm, 30-100 ppm and 50-100 ppm respectively. The smoked catfishes retained good scores for taste, appearance, texture, and odour. However, there was significant (p < 0.05) differences in taste, appearance, texture, and odour for Heterobranchus spp., C. gariepinus and Synodontis spp in Abinsi and Wadata markets.
26
Triyatmo, Bambang. "ZEOLIT MEMPERTAHANKAN KUALITAS AIR DAN MENINGKATKAN PERTUMBUHAN LELE DUMBO (Clariasgariepinus)." Jurnal Perikanan Universitas Gadjah Mada 5, no. 1 (January 28, 2003): 1. http://dx.doi.org/10.22146/jfs.8962.
Full textAbstract:
The objectives of this research were to know the effects of zeolite on the water quality and the growth of catfish. Catfishes were cultured in fiberglass containers (±24 l) with 5-10% of water exchange/container/day, for 3 months. The stocking density was 8 fishes/container (3 fishes/l water). Zeolite was added at 0, 125, 250, 500 mg/l/month.Result of this experiment indicated that zeolite at 125, 250, 500, mg/l/month decreased free CO2, alkalinity and NH3 of water during 3 months culture of catfish. The body weight increasment of catfish cultured in treated water with zeolit at 125, 250, 500 mg/l/month were 188, 195, and 222 g, respectively, which were higher than that of catfish cultured in untreated water.
27
Barasa, James E., and Don Felix Ouma. "Towards Sustainability in Seed Supply for African Catfish, Clarias gariepinus (Burchell, 1822) Culture in Kenya: Lessons from Asian Catfishes Industry." Aquaculture Research 2024 (March 25, 2024): 1–21. http://dx.doi.org/10.1155/2024/1341858.
Full textAbstract:
The culture of African catfish, Clarias gariepinus, is constrained by the high mortality of fry, occasioning a shortage of high-quality seeds for stocking by farmers. Asia, a continent with many success stories for aquaculture, leads in farmed production of some catfishes, a diverse group of 37 different families. Globally, the culture of catfishes ranks fifth in global farmed finfish production. Globally, Vietnam leads in the production and export of farmed striped catfish, Pangasianodon hypophthalmus, with 1,400,000 tonnes produced annually from about 7,000 hectares. Similarly, China farmed the non-native Channel catfish, Ictalurus punctatus, into the major crop, with a current annual production of 250,000 tonnes. On the contrary, C. gariepinus, the main farmed catfish species in Africa, records low annual yields, with 240,000 tonnes for the whole continent. This paper explores the factors behind the high production of P. hypophthalmus and I. punctatus in Vietnam and China, respectively, and draws lessons for C. gariepinus farmers in Africa. Specifically, the use of differentiated hatchery and nursery husbandry practices was critical in boosting seed production, quantity, availability, and distribution for expanding the culture of P. hypophthalmus in Vietnam. Improvement of fish species through well-designed genetic improvement programs helped China substantially increase production of I. punctatus. For both species, intensive fish production, as well as the adoption and implementation of suitable policies, increased seed production from hatcheries in both countries. These are discussed as some of the factors that spurred catfish production in the two Asian countries. We argue that if these are adopted by farmers in Africa, they could help improve the production of farmed C. gariepinus on the continent for food and nutrition security as well as generation of livelihood for local communities.
28
Huang, Lishi, Guosong Zhang, Yupeng Zhang, Xinlan Li, Zhong Luo, Wenyu Liu, Fu Luo, et al. "Profiling Genetic Breeding Progress in Bagrid Catfishes." Fishes 8, no. 8 (August 21, 2023): 426. http://dx.doi.org/10.3390/fishes8080426.
Full textAbstract:
The Bagridae fish family holds significant economic value and enjoys a high demand in the commercial market due to its desirable characteristics, such as delicious meat, fewer muscle spines, and a pleasing flavor. In recent years, the Bagridae has experienced rapid development in the seed industry in response to industry demands. Researchers have conducted extensive studies on genetic breeding in the Bagridae, employing a comprehensive breeding approach that combines conventional breeding techniques with innovative new technologies and cooperative efforts. In this review, we present an overview of the market situation and discuss various breeding processes applied to the Bagridae, including selective breeding, genetic engineering breeding, cell engineering breeding, molecular marker-assisted breeding, and hybrid breeding. Additionally, we focus on introducing the cultivation methods for two new Bagridae varieties. Furthermore, we explore and summarize the breeding conditions, genetic background, heterosis, comprehensive breeding technology, stress resistance, and metabolic nutrition of hybrid Bagridae catfishes. Overall, noticeable heterosis has been observed in the breeding of the hybrid yellow catfish “Huangyou-1”, which exhibits promising market prospects and economic benefits for aquaculture. Our study aims to underscore the importance of harnessing the heterosis of catfish, particularly the Pelteobagrus and Bagridae species. Consequently, this review provides an update on the current available information regarding the seed industry of the Bagridae fish family.
29
Gatts, Pedro V., Marcos A. L. Franco, Marcelo G. Almeida, Ilana R. Zalmon, Ana Paula M. Di Beneditto, Paulo A. S. Costa, and Carlos E. de Rezende. "The trophic ecology of marine catfishes in south-eastern Brazil." Journal of the Marine Biological Association of the United Kingdom 100, no. 1 (January 13, 2020): 133–42. http://dx.doi.org/10.1017/s0025315419001164.
Full textAbstract:
AbstractThe stable isotope ratios of carbon (δ13C) and nitrogen (δ15N) and total mercury concentrations (THg) of the three marine catfish species Aspistor luniscutis, Bagre bagre and Genidens genidens were evaluated to understand their trophic relationship in northern Rio de Janeiro state, south-eastern Brazil. The δ13C was similar among the three marine catfishes, whereas δ15N was similar in A. luniscutis and B. bagre and lower in G. genidens. THg was higher in G. genidens and lower in B. bagre. The greater assimilation of Sciaenidae fishes and squids by A. luniscutis and B. bagre resulted in smaller isotopic niche areas and trophic diversity but higher isotopic niche overlap, trophic redundancy and evenness. For G. genidens, the similar assimilation of all prey items resulted in the broadest isotopic niche among the marine catfishes. The higher mercury content in G. genidens is consistent with an increased important contribution of prey with a higher Hg burden. The bioaccumulation process was indicated by significant correlations of δ15N and THg with total length and total mass. Additionally, a significant correlation between THg and δ15N reflected the biomagnification process through the food web.
30
MacCormack, T. J., R. S. McKinley, R. Roubach, V. M. F. Almeida-Val, A. L. Val, and W. R. Driedzic. "Changes in ventilation, metabolism, and behaviour, but not bradycardia, contribute to hypoxia survival in two species of Amazonian armoured catfish." Canadian Journal of Zoology 81, no. 2 (February 1, 2003): 272–80. http://dx.doi.org/10.1139/z03-003.
Full textAbstract:
Amazonian armoured catfishes exhibit substantial cardiac hypoxia tolerance, but little is known concerning organismal cardiorespiratory, metabolic, and behavioural responses to low oxygen levels. This study assessed the general mechanisms used by two species of armoured catfish, Glyptoperichthyes gibbceps and Liposarcus pardalis, to survive the frequent periods of hypoxia encountered in the Amazon River. The gill ventilation rate (fv) and heart rate (fh) were studied under controlled hypoxia in aquaria and under natural hypoxia in a simulated pond. Glyptoperichthyes gibbceps were fitted with radiotelemetry tags and held in field cages to study their habits of depth selection and air breathing. When denied aerial respiration under hypoxia in aquaria, G. gibbceps increased fv, but neither they nor L. pardalis exhibited alterations in fh. An increase in fvwas initially observed in G. gibbceps during pond hypoxia before aerial respiration was initiated and fvdeclined. Glyptoperichthyes gibbceps were hyperglycaemic under normoxia, and extremely large increases in plasma glucose and lactate concentrations were observed under hypoxia. Field studies confirmed their nocturnal behaviour and showed that air breathing increased at night, regardless of dissolved oxygen concentration. Our results show that armoured catfishes preferentially up-regulate fvand anaerobic metabolism and exhibit no bradycardia during hypoxia.
31
Hoenen, Sônia. "Comparative field ecology and morphology of two populations of the Troglobitic Catfish Pimelodella Kronei (Siluriformes: Pimelodidae) from Southeastern Brazil." Papéis Avulsos de Zoologia 40 (February 17, 1997): 323–35. http://dx.doi.org/10.11606/0031-1049.1997.40.p323-335.
Full textAbstract:
This study focused on characterizing the Bombas resurgence population oftroglobitic catfishes Pimelodella kronei from ecological and morphological points of view, and on making comparisons with the previously studied population of V. kronei catfishes from Areias cave. Bombas population ended to be more numerous and with a higher density than Areias population. Considering morphological data, Bombas fishes were smaller than Areias fishes in all parameters measured. On the other hand, values of condition factor for Bombas fishes were higher than those for Areias fishes. Thus, although smaller, they were proportionally heavier. The depigmentation rate of Bombas catfishes was more homogeneous than that of Areias catfishes, being Bombas fishes lighter than Areias fishes in average. Considering ecological and behavioural data, there are some autapomorphies for each population and some similarities which could be eithersynapomorphies or convergences. Thus, either the populations evolved from the same ancestral and nowadays there is a large reduction of genetic flow (and they may have even speciated), or the two populations had different origins. Anyway, there are many evidences to consider them as different species, atleast using thephylogenetic species concept, which should be tested.
32
Gustiano, Rudhy, and Laurent Pouyaud. "Diversity of Pangasiid Catfishes From Sumatra." Buletin Plasma Nutfah 12, no. 2 (October 6, 2016): 83. http://dx.doi.org/10.21082/blpn.v12n2.2006.p83-88.
Full textAbstract:
<p>One of the utmost importance catfish group for fisheries and aquaculture in Southeast Asia is pangasiids. The main constrain to cultivate wild species and optimize the production of cultured species was due to the poorly documented of the genetic resources. In the current study, it presents the diversity of pangasiids catfishes from Sumatra. Nine hundreds and ninety nine specimens formed the core of the material examined during this study. On each specimen, 35 point to point measurement, covering the possible variation of the body conformation were taken using dial calipers. Data were subjected to principal component analysis. Data analysis consisted in characterizing groups from scatter plots between pairs of structuring characters for subsequent use in generic identifycation keys. Four genera with seven species exist in four main rivers, Indragiri; Batang Hari; Musi; Way Rarem, in Sumatra. They are Helicophagus typus, H. Waandersii, Pteropangasius micronemus, Pangasius polyuranodon, P kunyit, P. djamba,l and P. nasutus. The diagnosis of the species, identification key, distribution and ecology were given.</p><p> </p><p><strong>Abstrak</strong></p><p>Salah satu group catfish (ikan berkumis) penting untuk perikanan tangkap dan budi daya di Asia Tenggara adalah famili Pangasiidae. Kendala utama untuk membudidayakan spesies dari alam dan meningkatkan produksi ikan budi daya adalah kurangnya informasi tentang plasma nutfah. Studi yang dilakukan menyajikan keragaman pangasius catfish dari Sumatra. Sejumlah 999 spesimen digunakan sebagai bahan uji. Pada setiap spesimen dilakukan 35 pengukuran menggunakan jangka sorong untuk menggambarkan keragaman bentuk tubuh. Data diuji dengan principal component analysis. Analisis data terdiri dari karakterisasi group menggunakan sebaran data antara pasangan-pasangan karakter pengukuran untuk menghasilkan kunci identifikasi. Empat genera dengan 7 spesies didapatkan dari 4 sungai utama (Indragiri, Batang Hari, Musi, dan Way Rarem) di Sumatra. Spesies-spesies tersebut adalah Helicophagus typus, H. waandersii, Pteropangasius micronemus, Pangasius polyuranodon, P. kunyit, P. djambal, dan P. nasutus. Diagnosis dari spesies-spesies tersebut, kunci identifikasi, distribusi, dan ekologi dipaparkan dalam makalah ini.</p>
33
Diogo, Rui. "Phylogeny, origin and biogeography of catfishes: support for a Pangean origin of 'modern teleosts' and reexamination of some Mesozoic Pangean connections between the Gondwanan and Laurasian supercontinents." Animal Biology 54, no. 4 (2004): 331–51. http://dx.doi.org/10.1163/1570756042729546.
Full textAbstract:
AbstractThe wide geographical distribution of the mainly freshwater catfishes has long intrigued the scientific community. This work provides a new insight into the phylogeny and the puzzling biogeographical distribution of catfishes. The important implications for teleost biogeography and plate tectonics are discussed. The results of the author's cladistic study on catfish higher level phylogeny, together with a revision of the data available concerning different fields such as palaeobiogeography, phylogeny, ecology and molecular biology, as well as the growing evidence supporting the existence of some remaining Pangean connections between Gondwana and Laurasia extending into the Early Cretaceous, strongly support a rather complex biogeographic scenario with multiple pre-drift and post-drift continental dispersions, vicariances, and, possibly, some marine migrations. According to this scenario: 1) catfishes originated in the South American region at a moment when there were still some remaining Pangean connections between Gondwana and Laurasia; 2) after this, there was a relatively rapid pre-drift continental dispersion of several, but not all, main groups of Siluriformes from the South-American region to Africa and other Gondwanan areas, with some of those groups succeeding in radiating ulteriorly via the remaining continental Pangean connections between Gondwana and Laurasia to this latter super-continent; 3) the final separation between Laurasia and Gondwana, and posteriorly between the regions constituting each of these super-continents, contributed to important vicariant events; 4) this scenario was still further complicated by numerous events such as the collision of India with Asia, the re-establishment of certain land connections between previously separated continents (e.g., between the Americas), and eventually also by some marine migrations, thus explaining the highly complex biogeographical distribution of the Siluriformes. In sustaining such a scenario, this work thus supports that, contrary to what is often accepted, some groups of 'modern teleosts' did have a Pangean origin.
34
Orfinger, Alexander B., Quan T. Lai, and Ryan M. Chabot. "Effects of Nonnative Fishes on Commercial Seine Fisheries: Evidence from a Long-Term Data Set." Water 11, no. 6 (June 4, 2019): 1165. http://dx.doi.org/10.3390/w11061165.
Full textAbstract:
Dozens of introduced exotic freshwater fish species inhabit the state of Florida. These nonnative fishes interact with freshwater commercial fisheries in a variety of ways, influencing catch abundance, composition, and revenue. Using a 22-year data set collected from a commercial haul seine fishery, we aimed to explore the dynamics of yield and revenue in relation to nonnative fishes, with emphasis on the suckermouth armored catfishes (Pterygoplichthys spp.). Using profit index metrics and the inverse Simpson’s diversity index, we found that non-native tilapia (Oreochromis spp.) and brown hoplo (Hoplosternum littorale) provided economic benefits while suckermouth armored catfishes seemed to disrupt catch consistency and lower profit index values. To reduce the negative impacts of the suckermouth armored catfishes and subsequently exert pressure on their population, we suggest marketing these edible fishes for human and/or animal consumption.
35
Oghale, O. O., A. C. Okoboshi, A. P. Chinedu-Ndukwe, K. C. Kanu, M. Beka, and D. A. Avoaja. "Effects of Dimethoate Insecticide on Serum Biochemistry of African Catfish (Clarias gariepinus) Juveniles." Journal of Applied Sciences and Environmental Management 25, no. 6 (November 3, 2021): 977–85. http://dx.doi.org/10.4314/jasem.v25i6.15.
Full textAbstract:
The present study was designed to investigate acute toxicity of dimethoate on juvenile Clarias gariepinus. Catfish with mean weight and length of 24.01 ± 11.60 g and 13.98 ± 5.66 cm respectively were exposed to sub-lethal levels of dimethoate in static bioassay system for 28 days and mortality data was statistically evaluated using Finney’s Probit analysis. The 96-hour LC50 value for C. gariepinus was estimated as 29.05 mg/l. The value for the LC50 was used in deducing the sub-lethal concentrations (0.01, 0.15and 0.29 mg/l). Biochemical changes in the serum such as glycogen, total protein, cholesterol, urea and creatinine were analyzed after the exposure period (28 days). The glycogenlevel decreased in all sublethal exposures. An increase in cholesterol at lower exposure concentration, followed by slight increase in urea and creatinine among treated groups was recorded. Behavioural changes which includes changes in skin colour, jerking, restlessness, erratic swimming, among others were observed. Based on the result of this study, it was concluded that C. gariepinus juveniles are very sensitive to low concentration of dimethoate. Dimethoate is highly toxic to juvenile catfishes and as such measures must be taken to avoid its run-off into our aquatic environment thus jeopardizing the recruitment of juvenile catfishes into the fishery.
36
FERRARIS, CARL J. "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types." Zootaxa 1418, no. 1 (March 8, 2007): 1–628. http://dx.doi.org/10.11646/zootaxa.1418.1.1.
Full textAbstract:
A checklist of Recent and fossil catfishes (Order Siluriformes) is presented, summarizing taxonomic literature published through 2005. From 4624 nominal species group names and 810 genus group names, 3093 species are recognized as valid, and are distributed among 478 genera and 36 families. Distributional summaries are provided for each species, and nomenclatural synonymies, including relevant information on all name-bearing types, are included for all taxa. One new name is proposed herein: Clariallabes teugelsi, as a replacement for Clarias (Allabenchelys) dumerili longibarbis David & Poll, 1937, which is preoccupied by Clarias longibarbis Worthington, 1933, but has been treated as a valid species of Clariallabes by Teugels. Acrochordonichthys melanogaster Bleeker, 1854, is designated as type species of Acrochordonichthys Bleeker, 1857, inasmuch as no earlier valid designation has been found. A new genus Pseudobagarius, is proposed for the “pseudobagarius group” of species formerly placed in Akysis. The status of 228 species group names remains unresolved and 31 names based on otoliths ascribed to catfishes are listed but not placed into the checklist. The current emphasis given to catfish taxonomy at present is likely to result in a dramatic increase in the total number of valid taxa as well as major changes in the membership of some of the higher level taxa recognized here.
37
Moldowan, Patrick D., Matthew G. Keevil, Steven Kell, Ronald J. Brooks, and Jacqueline D. Litzgus. "Anti-predator defenses of Brown Bullheads (Ameiurus nebulosus) and interactions with Snapping Turtles (Chelydra serpentina)." Canadian Field-Naturalist 129, no. 2 (August 5, 2015): 189. http://dx.doi.org/10.22621/cfn.v129i2.1701.
Full textAbstract:
Ictalurid catfishes have sharp spines on their dorsal and pectoral fins that can be hazardous to predators. The pectoral spines may lock in an abducted position, effectively increasing body size and preventing ingestion by gape-limited predators. Further, sharp spines may injure predators or increase prey handling time, affording catfish opportunities for escape. As part of a long-term mark–recapture study of turtle ecology in Algonquin Provincial Park, Ontario, Canada, we documented the presence of Brown Bullheads, Ameiurus nebulosus, in the diet of Snapping Turtles, Chelydra serpentina. Here, we report on injuries inflicted by the pectoral spines of bullheads on Snapping Turtles during predator–prey interactions and provide a brief literature review of the functional significance and potential dangers of catfish pectoral spines to predators.
38
Vlasov, V., and I. Kulkova. "The cultivation of sharptooth catfish (Clarias gariepinus burchell) when the use of compound feed with different protein level." Glavnyj zootehnik (Head of Animal Breeding), no. 4 (April 1, 2020): 58–67. http://dx.doi.org/10.33920/sel-03-2004-08.
Full textAbstract:
It has been found as a result of the research that sharptooth catfishes grown on a highprotein diet (the 2nd variant) had a higher growth rate compared to fish that consumed low-protein, but cheap feed (the 1st variant). The average daily gains of fish in the 2nd variant of the experiment corresponded to 6,1 g/day, which was 3,4 g higher compared to the herdmates of the 1st variant. During the experiment period (60 days) the individual weight of catfishes that consumed low-protein compound feed has been increased by 160 g while fish have been grown on high-protein compound feed added 364 g, which was 2,3 times more. In the end the higher yield of fish products per unit of water area has been obtained in the 2nd variant of the experiment 271,2 kg/m[sup]3[/sup] against 118,4 kg/m[sup]3[/sup] in the 1st variant. However, economic analysis has shown that the use of expensive high-protein feed does not give a significant effect. The additional profit in the 1st variant was only 12 %. Catfishes have been grown on high-protein compound feed had the best conformation and technological indicators. They differed from their herdmates from the other variant with higher indicators of edible body parts their body contained less internal fat. High growth and better physiological condition of catfishes that consumed higher-quality protein feed are confirmed by interior, hematological and biochemical indicators. Their blood had a higher concentration of protein, hemoglobin, and fewer white blood cells. In catfishes of the 1st variant the higher level of AST and ALT enzymes has been found in the blood serum, which indicates a low protein metabolism, increased urea synthesis and the high load of work of the liver.
39
Wilson, Riobert P., and Yann Moreau. "Nutrient requirements of catfishes (Siluroidei)." Aquatic Living Resources 9 (November 1996): 103–11. http://dx.doi.org/10.1051/alr:1996045.
Full text
40
Lopez Lecorchick, Jessica Rose, Alexander Flecker, and Aaron Rice. "Acoustic Variation in Ictalurid Catfishes." Cornell Undergraduate Research Journal 2, no. 1 (May 8, 2023): 41–53. http://dx.doi.org/10.37513/curj.v2i1.714.
Full textAbstract:
More than 35,000 ray-finned fish (Actinopterygii) species are potentially using acoustic communication. However, of the approximately 1200 known soniferous fish species, few include North American freshwater fish. To help fill this knowledge gap in fish acoustic communication, which holds great promise for conservation monitoring, I document acoustic measurements (duration 90%, bandwidth 90%, number of pulses, center frequency, and peak time) across 4 species (Ameiurus nebulosus, Ameiurus natalis, Noturus flavus, Ictalurus punctatus) from 3 genera of the North American catfish family, Ictaluridae. This was done by recording 10 trials of disturbance calls from 28 individuals and analyzing 1294 sounds using Raven Pro 1.6 software. I hypothesized that: 1) more phylogenetically/morphologically related species would have more similar acoustic features, 2) acoustic features would correlate with one another, and 3) acoustic features would correlate with standard length (cm). For hypothesis 1, I instead found that Ameriurus nebulosus was the most acoustically dissimilar, despite having the highest level of phylogenetic/morphological similarity with Ameirus natalis. However, only Ameriurus nebulosus' number of pulses were significantly different from other species. For hypothesis 2, it was found that many acoustic measurements were correlated with one another as predicted. For hypothesis 3, only the number of pulses was found to be significantly correlated with standard length, but minimally so. These findings further support that pulsation measurements may contain a high level of phylogenetic signal, given that it is the most crucial characteristic to differentiate species.
41
Carvalho, Thaís Isabela, Julia Klaczko, and Veronica Slobodian. "Pectoral-fin glands and delivery apparatus in the catfish genus Brachyrhamdia Myers, 1927 (Siluriformes: Heptapteridae)." Papéis Avulsos de Zoologia 61 (August 24, 2021): e20216174. http://dx.doi.org/10.11606/1807-0205/2021.61.74.
Full textAbstract:
The Siluriformes, popularly known as catfishes, are probably the vertebrate group with the highest diversity of venomous animals, even though only approximately a hundred venomous catfishes are reported to date. Venomous catfishes might present a delivery system apparatus, formed by an unbranched ray at the leading edge of pectoral and dorsal fins (spine), which can be stiffened and pungent, while venom glands can be present at the surface of such spines and/or the axillary region. This work investigated the presence, morphology and distribution of glands and pectoral-fin delivery apparatus in the heptapterid Brachyrhamdia genus. Pectoral-fin spine external morphology was compared across all valid species in the genus, histological sections of the pectoral-fin spine and axillary regions of B. heteropleura and B. marthae were produced, and dissections of the pectoral girdle region of the mentioned species were analyzed. The histological sections confirmed the presence of pectoral-fin glands at the surface of the pectoral-fin spine of Brachyrhamdia species, and cellular morphology indicates these glands are probably venomous. Also, we found a piriform gland at the axillary region, whose cell morphology is like the reported for other catfishes. However, we cannot currently confirm or deny axillary gland participation in the venom delivery apparatus. This work constitutes the first report of venom glands in Brachyrhamdia, and the first description of Heptapteridae axillary glands.
42
Orlov, A. A., V. D. Baron, and A. S. Golubtsov. "Electrogenesis in two african upside-down catfishes, Synodontis sorex and S. batensoda (Mochokidae, Siluriformes)." Доклады Академии наук 487, no. 6 (September 10, 2019): 711–14. http://dx.doi.org/10.31857/s0869-56524876711-714.
Full textAbstract:
Weak electric discharges generated by the two species of African upside-down catfishes, Synodontis sorex and S. batensoda, are described. In both species two types of discharges were recorded in the course of aggressive-defense interactions in the pairs of individuals: short simple biphasic and longer (duration > 20 ms) discharges with more complex waveform. The discharges of the latter type seem to result from a temporal summation (with various latency) of simple discharges. It is suggested that formation of the long quasimonopolar discharges enhances the coincidence of frequency spectrum of the catfish discharges with maximum sensitivity range of their ampullary electroreceptors.
43
Bhuyan, Gitalee, and Nirmalendu Saha. "Role of Free Amino Acids in Renal Tissue of Air-Breathing Catfish, Heteropneustes Fossilis Under-Desiccation Stress (Mud Dwelling)." Science & Technology Journal 6, no. 1 (January 1, 2018): 68–74. http://dx.doi.org/10.22232/stj.2018.06.01.09.
Full textAbstract:
The Indian air-breathing catfish, Heteropneustes fossilis faces various environmental constraints throughout the year leading to the problem of accumulation of toxic ammonia. Water restricted mud dwelling condition is a common environmental stress (desiccation stress) for catfishes in North Eastern India during winter. The fish is able to survive inside moist peat for months. In the present study the air breathing singhi catfish H. fossilis was kept inside mud peat for 30 days mimicking their normal habitat in winter and the changing pattern of free amino acid (FAAs) content was investigated in renal tissue. Under desiccation, a significant accumulation of ammonia and FAA, mainly glutamine, alanine, glycine, glutamate and serine have been observed in the renal tissue with approximately 2.56 and 1.56 fold increase. Thus, it appears that the Indian air-breathing catfish handle the ammonia toxicity by conversion of ammonia to some non-essential FAAs.
44
Cione, Alberto L., and G. V. R. Prasad. "The oldest known catfish (Teleostei: Siluriformes) from Asia (India, Late Cretaceous)." Journal of Paleontology 76, no. 1 (January 2002): 190–93. http://dx.doi.org/10.1017/s0022336000017480.
Full textAbstract:
Siluriformes constitute an important monophyletic group of mainly freshwater fishes (Fink and Fink, 1996). Presently, there are about 35 families with over 2,000 species in all continents except Antarctica (Lundberg, 1993; Nelson, 1994); however, at least in the Eocene, they also inhabited Antarctica as well (Grande and Eastman, 1986). A small number of catfishes (most of the ariids and many of the plotosids) are marine and some species of other families can enter brackish waters (Nelson, 1994). Pre-Cenozoic catfishes are extremely rare outside of South America.
45
Sugumar, Ramkumar, A. K. Jaiswar, Ranjith Lakshmanan, Sushant Chakraborty, G. B. Purushottama, Vinay Deshmukh, Vinod Kavungal, and Rani George. "An Assessment on Economic Impact of Growth Over Fishing of Commercially Important Marine Ariids Along Mumbai, Northwest Coast of India." Current World Environment 11, no. 2 (August 25, 2016): 531–36. http://dx.doi.org/10.12944/cwe.11.2.22.
Full textAbstract:
The economic assessment on juvenile landings of four dominant marine catfishes at New Ferry Wharf (NFW) landing centre, Mumbai, Northwest coast of India was carried out during January to December, 2013. The dominant catfishes viz. Nemapteryx caelata (19.7 %), Plicofollis dussumieri (21.5 %), P. tenuispinis (24.8 %) and Osteogeneiosus militaris (27.5 %) together contributing 93% of total marine catfish landings of the state. Among four species, the juvenile landings of N. caelata contribute maximum(93.17 %) followed by P. dussumieri (57.14 %), O. militaris (36.11 %) and P. tenuispinis (21.43 %) with the maximum landing during November to March . The bioeconomic model reveals that if juveniles are allowed to grow up to length at first maturity (Lm); an estimated total annual economic gain will be Rs. 13.15 crores with an estimated biomass gain of 1222 t per annum. The estimated total annual biomass is increased by 2.07 times with an increase in additional revenue by 3.7 times would have been realised. The results of present study suggest that sustainable harvest of these resources would have been yielded maximum economic return to the fishers. With the help of stakeholders participatory approach, management measures such as strict mesh size regulation, effort restriction on bottom trawl up to 50 m depth and awareness campign on catching juveniles and adult in particulat to the oral incubated male ariids, would have been implemented during November to March to avoid growth over fishing.
46
Pereira, Luciana A., Leandro Castello, Donald J. Orth, Fabrice Duponchelle, and Eric M. Hallerman. "A Synthesis of the Ecology and Conservation of Pseudoplatystoma Catfishes in the Neotropics." Fishes 8, no. 6 (June 7, 2023): 306. http://dx.doi.org/10.3390/fishes8060306.
Full textAbstract:
Species of the genus Pseudoplatystoma, the long-whiskered catfishes, are important in commercial and recreational fisheries in South America, and some species have become key to regional aquaculture. Some species of the genus are under pressure due to overfishing and the negative impacts of dams. Six questions are asked in this review: (i) What species are in the genus, and where are they distributed? (ii) What are the life histories and ecologies of Pseudoplatystoma species? (iii) What are the patterns of somatic growth for these species? (iv) What is known about the biomass, production, and population dynamics of Pseudoplatystoma? (v) What is the geographic distribution of genetic variation within Pseudoplatystoma species? (vi) What are the threats to the conservation of these species? The taxonomy of the genus currently includes eight species, respectively, distributed over the Orinoco, Amazon, Paraná, and São Francisco basins. Pseudoplatystoma catfishes typically exhibit longitudinal migrations for reproduction and lateral migration for feeding, but these patterns may vary among populations. The size of the first maturation of these catfishes varies between 57 cm to 82 cm in total length. Five of the eight species spawn during the rising water season. Pseudoplatystoma species can grow to about 130 cm in total length and 100 Kg in weight and live until 30 years of age, depending upon the species. Biomass production and population dynamics of these catfishes have not yet been fully described. Their life-history characteristics indicate that they are periodic strategists with associated population recruitment dynamics. Population genetic patterning varies among Pseudoplatystoma species, with some degree of homing behavior and genetic differentiation among populations, indicating the need for management by applying the Management Unit and perhaps Evolutionary Significant Unit concepts. The main threats to the persistence of these catfishes are overfishing and alterations in and obstruction of river flow due to the construction of hydropower dams. After synthesizing existing information on species of the genus Pseudoplatystoma, we offer suggestions for future research to fill critical gaps in the knowledge of this group.
47
ALVES, PHILIPPE V., ROMAN KUCHTA, and TOMÁŠ SCHOLZ. "Molecular data support monophyly of the recently erected Riggenbachiella (Cestoda: Proteocephalidae), parasites of Neotropical catfishes." Zootaxa 4706, no. 4 (December 11, 2019): 594–97. http://dx.doi.org/10.11646/zootaxa.4706.4.9.
Full textAbstract:
Proteocephalid tapeworms (Cestoda) are one of the dominant groups of intestinal parasites of Neotropical catfishes (Siluriformes), especially pimelodids (de Chambrier et al. 2015). The long and convoluted taxonomic history of species of Chambriella Rego, Chubb & Pavanelli, 1999 has been disentangled only recently by Alves et al. (2017). These authors erected a new genus, Riggenbachiella Alves, de Chambrier, Luque & Scholz, 2017, to accommodate R. amazonense Alves, de Chambrier, Luque & Scholz, 2017 (type-species) and R. paranaense (Pavanelli & Rego, 1989) (previously Chambriella paranaensis), parasites of pimelodid catfishes.
48
OBOH, I. P., and C. U. EDEMA. "STUDIES ON THE REPRODUCTIVE BIOLOGY OF SOME TELEOSTS OF THE RIVER JAMIESON, SAPELE, NIGERIA." Nigerian Journal of Life Sciences (ISSN: 2276-7029) 4, no. 1 (March 17, 2022): 107–14. http://dx.doi.org/10.52417/njls.v4i1.162.
Full textAbstract:
Study of the structure of the reproductive organ of some teleost fishes in River Jamieson, Sapele, was undertaken between July and September 2009. Length and weight measurements of fishes and gonads were determined. It was observed that testes were of two structural forms, threadlike and smooth in the Cichlidae, but branched lobules in catfishes (Bagridae and Mochokidae). Ovaries were sac-like and contained telolecital eggs. The gonads depicted breeding activities. Female catfishes Chrysichthys nigrodigitatus (57.14%) Synodontis eupterus (75%) and (66.6%) were more abundant than males, while male Chromidotilapia guentheri (62.25%) exceeded females (37.50%).
49
Soria-Barreto, Miriam, Demián Hinojosa-Garro, Jesús Elías García-López, and Ricardo Efraín Góngora Chin. "New report and range extension of invasive suckermouth armored catfishes of the genus Pterygoplichthys (Actinopterygii: Siluriformes: Loricariidae) in the Yucatan Peninsula." Acta Ichthyologica et Piscatoria 54 (May 20, 2024): 109–14. http://dx.doi.org/10.3897/aiep.54.117474.
Full textAbstract:
Commonly known as suckermouth armored catfishes or pleco, Pterygoplichthys spp. are a group of invasive fishes that are widely distributed in several countries, including Mexico. This paper reports the first records of suckermouth armored catfishes in the Candelaria River, thereby expanding its distribution within the Yucatan Peninsula. Fifteen individuals were collected from three sites in the upper and middle parts of the basin. They represented two phenotypically distinct species of catfishes: (vermiculate) Pterygoplichthys disjunctivus (Weber, 1991) and (spotted) Pterygoplichthys pardalis (Castelnau, 1855). Adults and juveniles were caught in lotic ecosystems in 2023 during the dry and rainy seasons. Results suggest that the invasive process of the Candelaria River is linked to the San Pedro River upper basin, in El Petén, Guatemala, through floodings enhanced by hurricanes, allowing these species to disperse. These records highlight the importance of connectivity between adjacent watersheds for the dispersal and expansion of these invasive fishes, mainly from rivers neighboring Guatemala. However, further research is necessary to explore the dynamics and connectivity between aquatic ecosystems and the possible mechanisms that promote the invasion of these fishes in this region.
50
Hariani, Dyah, Marhendra A. P. W, Aulanni Am, and Suprayitno E. "Profile of Catfish (Clarias sp) Oocyte Exposed by Laserpuncture." Journal of Biology and Life Science 5, no. 2 (August 10, 2014): 188. http://dx.doi.org/10.5296/jbls.v5i2.5585.
Full textAbstract:
Anexposure of low-powered laserpuncture at reproductive acupoint of catfish brood stock is known stimulate oocyte maturation. However, the profile of oocyte resulted from laserpuncture exposure has not been known. The present study aimed to identify the profile of catfish (Clarias sp.) oocyte in post-exposure laserpuncture. A total of 48 catfishes with ages of 8-9 months was grouped into two, i.e. fishes were exposed with laserpuncture and without exposure to laserpuncture (control) with 3 replications. Laserpuncture exposure was conducted once a week until the brood stock matured. Profile of oocyte such as, the GSI value, egg diameter, total of oocytes and the gonad maturity stage were examined. The results showed that laserpuncture exposure at the catfish reproductive acupoint could trigger the oocyte development without reducing quality of the oocyte indicated by the increase of gonadosomatic index (GSI), oocyte diameter, total of oocytes and gonad maturity stage similar to control. Moreover, laserpuncture exposure accelerated the gonad maturation, three weeks faster than control.