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Artykuły w czasopismach na temat „Chrysichthys nigrodigitatus”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Moussa Ouattara, AwaTraore, Koffi Charles Boussou, and Kouakou Severin Attoungbre. "Growth parameters of Chrysichthys nigrodigitatus (Lacépède, 1803) and Chrysichthys maurus (Valenciennes, 1840) in Buyo Lake (Middlee - West: Côte d’Ivoire)." GSC Advanced Research and Reviews 16, no. 1 (2023): 260–67. http://dx.doi.org/10.30574/gscarr.2023.16.1.0285.

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The growth parameters of Chrysichthys nigrodigitatus and Chrysichthys maurus were estimated in Buyo Lake. The study covered 1070 individuals collected monthly between August 2019 and July 2020, including 630 Chrysichthys nigrodigitatus with sizes between 4 cm Ls and 55 cm Ls and 440 Chrysichthys maurus individuals with sizes between 12 cm Ls and 59 cm Ls. The values of L∞, K and Φ' are 69.35 cm; 0.78 yr-1 and 3.57 yr for Chrysichthys nigrodigitatus respectively. The longevity is 3.84 years with a To equal to -0.16 while in Chrysichthys maurus, the longevity is 4.68 years with a To equal to -0.

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2

Moussa, Ouattara, AwaTraore, Charles Boussou Koffi, and Severin Attoungbre Kouakou. "Growth parameters of Chrysichthys nigrodigitatus (Lacépède, 1803) and Chrysichthys maurus (Valenciennes, 1840) in Buyo Lake (Middlee - West: Côte d'Ivoire)." GSC Advanced Research and Reviews 16, no. 1 (2023): 260–67. https://doi.org/10.5281/zenodo.8272207.

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The growth parameters of <em>Chrysichthys nigrodigitatus</em> and <em>Chrysichthys maurus</em> were estimated in Buyo Lake. The study covered 1070 individuals collected monthly between August 2019 and July 2020, including 630 <em>Chrysichthys nigrodigitatus</em> with sizes between 4 cm Ls and 55 cm Ls and 440 <em>Chrysichthys maurus</em> individuals with sizes between 12 cm Ls and 59 cm Ls. The values of L∞, K and Φ' are 69.35 cm; 0.78 yr<sup>-1</sup> and 3.57 yr for <em>Chrysichthys nigrodigitatus</em> respectively. The long

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3

Ogunbambo, Mogbonjubola Mutiat. "Biochemical Profiling of Some Commercial Marine Fin Fish Species in Lagos (Nigeria)." Transylvanian Review of Systematical and Ecological Research 26, no. 3 (2024): 11–18. https://doi.org/10.2478/trser-2024-0014.

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Abstract The proximate mineral compositions of Scomber scombrus, Pseudotholitus typus, and Chrysichthys nigrodigitatus in Lagos were analyzed using standard methods. Moisture content was 58.12%, 75.28%, and 74.68% respectively. Crude protein content was not significantly different among the species. Scomber scombrus had the highest crude fat and was the only species with detectable crude fiber (2.04%). Ash contents were similar across species. Carbohydrate content was lowest in Chrysichthys nigrodigitatus (3.48%) and highest in Scomber scombrus (7.42%). Pseudotholitus typus had the highest tot

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Aondoakaa, S. Nomor, and O. Odoemelam Stevens. "Some Heavy metals content in fish of River Benue." Chemistry Research Journal 7, no. 4 (2022): 36–42. https://doi.org/10.5281/zenodo.11402890.

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<strong>Abstract </strong>Five fish species comprising forty-eight samples were collected from River Benue and analysed for heavy metals. The heavy metal levels in the fish were found to be in the order: Zn > Cu > Pb > Co > Cd. The mean Zn concentrations in µg/g ranged from 4664 ± 446.35 in <em>Clarias lazera</em> to 5013.37 ± 638.38 in <em>Chrysichthys nigrodigitatus</em>. Mean Cu concentrations ranged from 14.63 ± 2.45 in <em>Chrysichtys nigrodigitatus</em> to 30.90 ± 12.95 in <em>Oreochromis niloticus</em> while the least metal contents in fish

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5

Miessan, Aya Pauline, Yolande Amoin Aké Assi, Offianan André Touré, and Gnamien Willy Taunin Gooré Bi. "Seasonal variation in contamination of fish flesh of smoked and dried Chrysichthys nigrodigitatus (Lacépède, 1803) with polycyclic aromatic hydrocarbons in the locality of Guessabo (Ivory Coast)." European Scientific Journal, ESJ 20, no. 18 (2024): 68. http://dx.doi.org/10.19044/esj.2024.v20n18p68.

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Polycyclic aromatic hydrocarbons are organic contaminants, some of which are known to be toxic, carcinogenic and mutagenic for humans. These molecules are ubiquitous pollutants of the environment, and can contaminate foodstuffs such as fish. The aim of this study was to assess the level of polycyclic aromatic hydrocarbons contamination in the flesh of a species of freshwater fish, Chrysichthys nigrodigitatus, smoked and dried in the locality of Guessabo. The method used for the determination of these analytes in the matrices was high performance liquid chromatography with UV/Visible detector.

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6

Idodo-Umeh, George, and Reginald Victor. "Some aspects of the ecology of bagrid catfishes in a southern Nigerian river." Journal of Tropical Ecology 7, no. 2 (1991): 221–32. http://dx.doi.org/10.1017/s0266467400005381.

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ABSTRACTSome aspects of the ecology of bagrid catfishes in River Ase, southern Nigeria were studied for a period of two years. Nine species of Bagridae were recorded and these accounted for 15.0% of the number and 24.4% of the weight of all fish captured. Chrysichthys nigrodigitatus and Chrysichthys auratus longifilis were the principal species. C. nigrodigitatus was a rainy season species, while C. auratus longifilis was abundant in both dry and rainy seasons. Both species showed a major peak in catches between 0600 and 0900 h. C. nigrodigitatus exhibited a minor peak in catches between 1500

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7

Tenyang, Noël, Roger Ponka, and Hilaire Macaire Womeni. "Effect of local hot smoking on proximate composition, lipid oxidation, fatty acid profile and minerals content of Chrysichthys nigrodigitatus from Lake Maga in Cameroon." International Journal of Biological and Chemical Sciences 14, no. 4 (2020): 1124–27. http://dx.doi.org/10.4314/ijbcs.v14i4.5.

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Fish with higher nutrient qualities can be used to solve malnutrition problems in Africa. So the aim of this study was to evaluate the effect of local smoking on proximate composition and lipid oxidation of Chrysichthys nigrodigitatus collected in Cameroon. The proximate composition was assessed using standard methods while lipid quality assessment was based on the determination of biochemical indexes. A change on fatty acid composition was evaluated by gas chromatography while minerals composition was evaluated by spectrophotometer. On nutritional point of view, raw fish have high protein, li

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8

Asiru, R. A., R. Y. Oladunjoye, HA Adedeji, et al. "Insights into Fish Growth Dynamics in Eyin-Osun River Ecosystem." Bulletins of Natural and Applied Sciences 1, no. 1 (2024): 237–41. https://doi.org/10.5281/zenodo.11030469.

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<strong>Abstract</strong> Fish growth dynamics are influenced by various factors such as species, environmental conditions, and available food resources. This study investigates the length-weight relationship, growth rate, and condition factors of fish species in Eyin-Osun River, Ogun State, Nigeria. Fishes were collected with the assistance of fisher folks and were immediately taking to laboratory in ice-chest cooler. Some morphomeristic measurements were taken to determine their growth dynamics. Four fish species (<em>Chrysichthys nigrodigitatus</em>, <em>Chrysichthys filamentous, Pelmatolpi

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9

Oladimeji, T. E., K. O. Olalekan, and T. J. Ajayi. "Phenotypic diversity of three populations of the silver catfish, <i>Chrysichthys nigrodigitatus</i> (Lacepède, 1803) in Southwestern, Nigeria." Ife Journal of Science 27, no. 1 (2025): 1–10. https://doi.org/10.4314/ijs.v27i1.1.

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Chrysichthys nigrodigitatus, commonly regarded as the silver catfish, is a highly prized and valued food fish with extensive distribution across African waters. Herein, C. nigrodigitatus was studied for its phenotypic diversity in three different waterbodies: Asejire Reservoir, Epe Lagoon, and Igbokoda River, using their morphological features. Fifty samples of C. nigrodigitatus were collected from each water body, totaling 150 specimens. Thirty morphometric traits and four meristic body counts were recorded on each fish using standard tools. The morphometric measurements were normalized to fi

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10

Martin, Kouame Kouamé, Assi Sonan Romuald, Boussou Koffi Charles, Yoboue Ahou Nicole, and Konan Koffi Félix. "Situational Analysis of Chrysichthys Nigrodigitatus Exploitation by Artisanal Fisheries in the Aghien Lagoon (South-East of Côte d'Ivoire)." Scholars Academic Journal of Biosciences 9, no. 10 (2021): 269–75. http://dx.doi.org/10.36347/sajb.2021.v09i10.003.

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Chrysichthys nigrodigitatus exploitation in the Aghien lagoon, Côte d’Ivoire, were analyzed by applying growth and mortality parameters, exploitation rate, relative yield and relative biomass per recruit. Fish population were sampled monthly during one year between June 2014 and May 2015 from artisanal and experimental captures. All the parameters determined during this study were done by the FiSAT II software. Concerning growth parameters, results indicated that the asymptotic length (L∞) has been estimated at 380.76 mm SL, growth coefficient (K) was 0.48 year -1 and growth performance index

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11

Michael, Amaka, Victor O. Eyo, and Ochuko Joshua Eriegha. "BASELINE SURVEY ON ENDOPARASITIC FAUNNA OF THE SILVER CATFISH (Chrysichthys nigrodigitatus) FROM ESCRAVOS ESTUARY, DELTA STATE NIGERIA, AND ITS ZOONOTIC IMPLICATION FOR FISH CONSUMER’S HEALTH." FUDMA JOURNAL OF SCIENCES 8, no. 1 (2024): 286–92. http://dx.doi.org/10.33003/fjs-2024-0801-2223.

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The Silver Catfish (Chrysichthys nigrodigitatus) is one of the important food fishes for the inhabitants of the Escravos Estuary. Due to lack of information on the parasites of fish species in the Escarvos Estuary, including C. nigrodigitatus, fish eaters from the Escravos Estuary are at grave danger of contracting zoonotic diseases. The purpose of this study was to determine the prevalence of endoparasites in the Silver Catfish (Chrysichthys nigrodigitatus) from the Escravos Estuary, Nigeria. A total of 180 samples of C. nigrodigitatus were collected from September 2023 to February 2024 from

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12

Ajagbe, S. O., D. O. Odulate, R. O. Ajagbe, et al. "Population dynamics of Chrysichthys nigrodigitatus (Lacépède, 1803) in Ikere-gorge, Oyo State, Nigeria." Ghana Journal of Agricultural Science 56, no. 1 (2021): 79–86. http://dx.doi.org/10.4314/gjas.v56i1.6.

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The growth and mortality parameters of Chrysichthys nigrodigitatus were estimated to assess the sustainability of its exploitation in Ikere-gorge, Oyo State, Nigeria. A total of 1210 of Chrysichthys nigrodigitatus were sampled from fishermen catches between January, 2017 and December, 2018. C. nigrodigitatus were exploited with gillnet, cast net and traps (Malian trap net and bamboo). Total lengths were measured with fish measuring board. The FAO-ICLARM Stock Assessment Tool (FiSAT II) software was used to analyze length-frequency data of the fish. The estimated growth parameters are: asympt

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13

Taiwo, I. O., and O. Odunaiya. "Sex ratio and fecundity of Chrysichthys nigrodigitatus (Family - Claroteidae) from Asejire Lake, Nigeria." Nigerian Journal of Animal Production 31, no. 1 (2021): 135–43. http://dx.doi.org/10.51791/njap.v31i1.1580.

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Sex ratio and fecundity of Chrysichthys nigrodigitatus from Asejire Lake were examined. The length-weight relationship showed that weight was curvilinearly related to standard length. The logarithm transformation of weight against standard length gave a straight-line graph represented by the following equation: Log W = -0.66 + 2.13 Log sl r2= 0.854; (p<0.001) n = 209 Males were generally more with a male : female ratio of 1:0.18. The average fish weight was 88.97g (16.28 cm standard length). Sexual maturity was attained at an average size of 45.0g (14.0 cm standard length). Relative f

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14

Coulibaly, T. A. S., and A. B. Adepo-Gourene. "Study of the Population Variability of Two Chrysichthys Species in Six Aquatic Ecosystems in Côte d'Ivoire." European Scientific Journal, ESJ 19, no. 30 (2023): 254. http://dx.doi.org/10.19044/esj.2023.v19n30p254.

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In Côte d'Ivoire, the genus Chrysichthys are subject to intense exploitation pressure and may be threatened by overfishing. The establishment of a sustainable management program for this resource requires in-depth knowledge of this fish. The population relationships were determined by evaluating the morphological variability of the two species of the subgenus Chrysichthys, which was identified in six rivers. Forty-one morphological measurements were carried out on 167 specimens of the species C. maurus and 160 specimens of the species C. nigrodigitatus. These descriptors were subjected to disc

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15

Bassock, Bayiha Etienne D., Jonathan A. Mbondo, Dieu Ne Dort Bahanak, and Bilong Charles F. Bilong. "Description of three new species of Protoancylodiscoides (Monogenea: Dactylogyridae) and biogeography of those parasitizing Chrysichthys nigrodigitatus (Siluriformes: Claroteidae) in Sanaga and Dibamba rivers, Cameroon." Zoologia 41 (March 11, 2024): 1–11. https://doi.org/10.1590/S1984-4689.v41.e23028.

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Bassock Bayiha, Etienne D., Mbondo, Jonathan A., Bahanak, Dieu Ne Dort, Bilong Bilong, Charles F. (2024): Description of three new species of Protoancylodiscoides (Monogenea: Dactylogyridae) and biogeography of those parasitizing Chrysichthys nigrodigitatus (Siluriformes: Claroteidae) in Sanaga and Dibamba rivers, Cameroon. Zoologia (e23) 41: 1-11, DOI: 10.1590/S1984-4689.v41.e23028, URL: https://doi.org/10.1590/s1984-4689.v41.e23028

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16

Akpan, I. I., M. A. Essien-Ibok, N. O. Abiaobo, et al. "Biodiversity and Abundance of Fish Species in Ekpene Ukpa River, A Tributary of Qua Iboe River Estuary, Niger Delta, Nigeria." Journal of Aquatic Sciences 37, no. 1 (2023): 41–49. http://dx.doi.org/10.4314/jas.v37i1.5.

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The diversity and abundance of fish species in Ekpene Ukpa River were studied from July - October, 2020. Sampling was by direct observation of the fish species at the sampling sites following landing by fishermen. Frequency, counts, and percentages were employed to determine fish species composition and abundance, while a Microsoft Excel 2003 based program was used to determine the ecological indices. A total of 14 species belonging to seven (7) families were recorded. The family, Clarotidae had the highest relative abundance (38.1%) with the least value (2.38%) observed in the family Alestida

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Gokou Jean Marie Djédjé, Kouakou Gains Kpan Kpan, Dopé Armel Cyrille Yapi, Kouamé Victor Kouamé, and Abiba Sanogo Tidou Epse Koné. "Impact of Glyphosate and 2,4-D used in agriculture on the quality of Chrysichthys nigrodigitatus (Lacépède, 1803) from the Sassandra River in Guessabo (Côte D’ivoire)." World Journal of Advanced Research and Reviews 14, no. 1 (2022): 212–22. http://dx.doi.org/10.30574/wjarr.2022.14.1.0298.

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The objective of this study is to evaluate the impact of glyphosate and 2,4-D contamination in the water, sediments, organs (gills, liver and muscles) of Chrysichthys nigrodigitatus and the health of the population related to the consumption of this fish from the river at Guessabo. The analysis of the different samples was done using HPLC. The results showed that the annual concentrations of the active ingredients (glyphosate and 2,4-D) varied in the water from 1.26 to 1.65 µg L-1, and in the sediment from 0.06 to 0.23 mg.kg-1. The concentrations of these active ingredients in fish muscle rang

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18

Adeyeye, S. A. O., O. B. Oyewole, A. O. Obadina, and A. M. Omemu. "Microbiological assessment of traditional smoked silver catfish (Chrysichthys nigrodigitatus)." African Journal of Microbiology Research 9, no. 2 (2015): 111–16. http://dx.doi.org/10.5897/ajmr2014.7145.

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Nwafili, Sylvanus A., and Tian-Xiang Gao. "Genetic Diversity in the mtDNA control region and population structure of Chrysichthys nigrodigitatus from selected Nigerian rivers: Implications for conservation and aquaculture." Archives of Polish Fisheries 24, no. 2 (2016): 85–97. http://dx.doi.org/10.1515/aopf-2016-0010.

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Abstract The genetic diversity and population structure of Chrysichthys nigrodigitatus were evaluated using a 443 base pair fragment of the mitochondrial control region. Among the eight populations collected comprising 129 individuals, a total of 89 polymorphic sites defined 57 distinct haplotypes. The mean haplotype diversity and nucleotide diversity of the eight populations were 0.966±0.006 and 0.0359±0.004, respectively. Analysis of molecular variance showed significant genetic differentiation among the eight populations (FST =0.34; P < 0.01). The present results revealed that C. nigrodi

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20

Iyiola, Adams Ovie, Ayotunde Samuel Kolawole, Samuel Bem Umma, and Tosin Iriobe. "Length- weight relationship, condition factor and sex ratio of Oreochromis niloticus and Chrysichthys nigrodigitatus in the lower section of Osun River, Nigeria." Aceh Journal of Animal Science 9, no. 2 (2024): 53–59. https://doi.org/10.13170/ajas.9.2.31878.

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Osun River is a major river in the Ogun-Osun River Basin and contributes significantly to fish production and quality source of protein. It is therefore essential to investigate the condition and characteristics of the most abundant fish species in the river. This aim was achieved by investigating the Morphometric parameters, sex ratio, and condition factor of Oreochromis niloticus and Chrysichthys nigrodigitatus in the lower section of the river; because these fish species were the most abundant and economically important. Monofilament gillnets were used for fish sampling for twelve months to

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21

Kouassi Brahiman Kien, Amalan Sylvie N’Da, Benié Rose Danielle Aboua, and Essetchi Paul Kouamelan. "Length-weight relationships and condition factor of the main species of fish caught on the Bandama River (Ivory Coast)." International Journal of Scientific Research Updates 3, no. 2 (2022): 037–42. http://dx.doi.org/10.53430/ijsru.2022.3.2.0038.

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The Ivory Coast has economically and ecologically important rivers that contain various fish and shellfish resources. Thus, the present study aims to assess the length-weight relationships and the condition factor of fish stocks in selected sites on the Bandama River from July 2013 to June 2014. The growth pattern of each species was identified at the using a regression model calculated for the length-weight relationship. The condition factor (K) was analyzed for each species. There were six species of fish (Chrysichthys nigrodigitatus, Synodontis bastiani, Synodontis schall, Marcusenius seneg

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22

Gokou, Jean Marie Djédjé, Gains Kpan Kpan Kouakou, Armel Cyrille Yapi Dopé, Victor Kouamé Kouamé, and Sanogo Tidou Epse Koné Abiba. "Impact of Glyphosate and 2,4-D used in agriculture on the quality of Chrysichthys nigrodigitatus (Lacépède, 1803) from the Sassandra River in Guessabo (Côte D'ivoire)." World Journal of Advanced Research and Reviews 14, no. 1 (2022): 212–22. https://doi.org/10.5281/zenodo.7009157.

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The objective of this study is to evaluate the impact of glyphosate and 2,4-D contamination in the water, sediments, organs (gills, liver and muscles) of <em>Chrysichthys nigrodigitatus</em> and the health of the population related to the consumption of this fish from the river at Guessabo. The analysis of the different samples was done using HPLC. The results showed that the annual concentrations of the active ingredients (glyphosate and 2,4-D) varied in the water from 1.26 to 1.65 µg L<sup>-1</sup>, and in the sediment from 0.06 to 0.23 mg.kg<sup>-1</sup>. The concentrations

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Uneke, Bilikis Iyabo. "DIET COMPOSITION, FEEDING HABITS AND CONDITION FACTOR OF Chrysichthys nigrodigitatus IN EBONYI RIVER (A TROPICAL FLOOD RIVER SYSTEM), SOUTHEASTERN NIGERIA." Continental J. Agricultural Science 8, no. 1 (2014): 29–37. https://doi.org/10.5281/zenodo.844281.

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The investigation for the food, feeding habits and condition factor of <em>Chrysichthys</em> <em>nigrodigitatus</em> in Ebonyi River was on seventy (70) samples. In the stomach of the <em>C.</em> <em>nigrodigitiatus</em> examined, the food items found include: cladocera, copepods, rotifer, diatoms, dinoflagellate, clams, worms, insect parts, fish scales, sand grains and detritus. The stomach contents of the samples examined revealed that the stomach conditions varied in the following order, those with full stomach contents were 41 (58.6%), partially full stomach contents were 12 (17.1%), parti

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Nwafili, S., Ren Guijing, and Gao Xiang. "Microsatellite Analysis of Six Populations of Chrysichthys nigrodigitatus from Nigeria." Annual Research & Review in Biology 5, no. 6 (2015): 544–52. http://dx.doi.org/10.9734/arrb/2015/9638.

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Kim, Nack-Keun, Fantong Zealous Gietbong, Sapto Andriyono, Ah Ran Kim, and Hyun-Woo Kim. "The complete mitogenome of Bagrid catfish Chrysichthys nigrodigitatus (Siluriformes: Claroteidae)." Mitochondrial DNA Part B 3, no. 2 (2018): 1239–40. http://dx.doi.org/10.1080/23802359.2018.1532341.

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Bob-Manuel, Fayeofori Gbobo, and Friday Upadhi. "Feeding Ecology of Juvenile Chrysichthys nigrodigitatus (LACE ́PE ̀DE, 1803), At the Tombia Mangrove Swamp Creek, Rivers State, Nigeria." CONTINENTAL J. APPLIED SCIENCES 12, no. 1 (2017): 29–38. https://doi.org/10.5281/zenodo.546468.

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<em>The feeding ecology of Chrysichthys nigrodigitatus juvenile was investigated in a shallow mangrous creek in Rivers State of Nigeria. The frequency of occurrence and the numerical abundance methods were both used to assess the food items found in the stomach of the fish. It was observed that the dominant food items, using the percentage occurrence include filamatous green algae (96%); Detritus sand particles (88%); insect parts (53%); Molluscs (52.00%); Bivalve (49%), cladocera (49%); Megalope larva of crabs (35%). By the numerical abundance method the data analysis also indicated that fila

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Osibona, A. O., and C. P. Amaechi. "Quality assessment of smoke-dried Clarias gariepinus and Chrysichthys nigrodigitatus stored in two storage facilities." Zoologist (The) 21, no. 1 (2023): 25–31. http://dx.doi.org/10.4314/tzool.v21i1.5.

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The quality of smoke-dried fish can be enhanced by storing the products in good storage facilities. This research was carried out to determine the proximate composition, microbiological quality and sensory properties of smoke-dried Clarias gariepinus and Chrysichthysis nigrodigitatus stored in refrigerator and kitchen cabinet during a 6-week storage period. Sensory properties were assessed using panel of assessors. Bacterial load was done using plate count agar spread plate technique. Fish were purchased alive, washed, sacrificed and smoked for 72 hours. Percentage weight loss after smoking C.

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Ayim, E. M., N. O. Sam-Uket, J. T. Onejeme, and I. O. Owali. "Heavy Metal Concentrations and Potential Human Health Risk for Consuming Gills, Muscles, Liver and Gonads of Silver Catfish (Chrysichthys nigrodigitatus) Reaped from Great Kwa River, Calabar, Cross River State, Nigeria." Journal of Applied Sciences and Environmental Management 28, no. 12 (2024): 3973–82. https://doi.org/10.4314/jasem.v28i12.4.

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The objective of this paper was to assess the concentrations of Pb, Hg, Cd, As, Cr, Zn and the potential human health risk associated with consuming contaminated gills, muscles, liver and , gonads of silver catfish (Chrysichthys nigrodigitatus) reaped from Great Kwa River, Calabar, Cross River State, Nigeria using atomic absorption spectrophotometer (AAS) after mixed acid digestion. The results showed that Mean concentrations of lead in the muscles, liver, gills, gonads (sperm and ovary) of C. nigrodigitatus range between 0.050±0.022 mg/kg to 0.242±0.027 mg/kg. The difference in lead content o

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Tiogué, Claudine Tekounegning, Boddis Tsiguia Zebaze, Paul Zango, and Minette Eyango Tomedi-Tabi. "Reproductive Strategy of Chrysichthys nigrodigitatus (Lacepede, 1803) in a Natural Environment in the Nkam River, Littoral Cameroon." International Journal of Zoology 2020 (February 15, 2020): 1–8. http://dx.doi.org/10.1155/2020/1378086.

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A study on the reproductive strategy of Chrysichthys nigrodigitatus was conducted from October 2015 to August 2016, in the Nkam River in Yabassi, Littoral Region of Cameroon. For this purpose, 154 specimens of C. nigrodigitatus with total mean weight of 829.96 ± 829.58 g and total mean length of 367 ± 156 mm collected from artisanal fishermen were used. Twenty-nine (29) females at stage V of sexual maturity were selected for the evaluation of the fecundity. It appears that the oogenesis in C. nigrodigitatus is of an asynchronous type with multiple laying spread over a long period. The gonadoso

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Muyideen, O. Lawal, J. Sangoleye Oluwabamise, and M. Seriki Bola. "Morphometry and diet of Chrysichthys nigrodigitatus (Lacpde) in Epe Lagoon, Nigeria." African Journal of Biotechnology 9, no. 46 (2010): 7955–60. http://dx.doi.org/10.5897/ajb09.1514.

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Ilechukwu, I., G. I. Ndukwe, B. E. Ehigiator, C. S. Ezeh, and S. L. Asogwa. "Microplastics in silver catfish (Chrysichthys nigrodigitatus) from new Calabar River in Niger Delta, Nigeria." Ghana Journal of Science 62, no. 2 (2022): 16–24. http://dx.doi.org/10.4314/gjs.v62i2.2.

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This study investigated the ingestion of microplastics by silver catfish (Chrysichthys nigrodigitatus) from New Calabar River in Niger Delta, Nigeria. Microplastics from the guts of 45 fish were examined with microscope after dissolution with potassium hydroxide. Microplastics, mostly fragments were found in about 56% of the samples at an average of 3.87±5.97 particles per fish. This study highlights the consequences of plastic pollution in freshwater environment and the potential risk to aquatic and human life. This also shows a potential threat to public health and therefore needs attention

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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 (2022): 107–14. http://dx.doi.org/10.52417/njls.v4i1.162.

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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 m

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Tomiwa, A. Akindele, Fagbuaro Omotayo, A. Adegbola Marry, A. Ola-Oladimeji Folasade, and V. Ekundare Olugbemi. "A Study on the Bagrid Catfish (Chrysichthys nigrodigitatus) from Itapaji Water Reservoir, Ekiti State, Nigeria." UTTAR PRADESH JOURNAL OF ZOOLOGY 44, no. 16 (2023): 86–99. http://dx.doi.org/10.56557/upjoz/2023/v44i163582.

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The Silver catfish, Chrysichthys nigrodigitatus is a highly valued food fish included among the dominant commercial catches exploited in major rivers of Africa. To obtain biological data for management and to contribute to their ecological knowledge some aspects of biology were studied on 120 samples of C. nigrodigitatus collected from Itapaji dam reservoir in Ekiti State, Nigeria between the months of June 2021 to September 2021. The specimens were transported to Zoology and Environmental Biology Post-graduate laboratory of Ekiti State University, where they were examined, relevant data recor

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Ajah Paul. O., Allison, Nneka L., Igbang Lucky Sylvester, Moses Miracle Augustine, and Efuneshi Chima Vinatius. "Predisposing Factors that Promote Prevalence of Heavy Metals Assimilation and Bioaccumulation in Aquatic Medium and amongst Fishes." Asian Journal of Fisheries and Aquatic Research 25, no. 4 (2023): 159–71. http://dx.doi.org/10.9734/ajfar/2023/v25i4693.

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The degree of heavy metals assimilation and bioaccumulation in fish tissues (muscles, gills, liver, and kidneys), amongst scale-less fishes- Chrysichthys macrotis, Chrysichthys nigrodigitatus, Clarias gariepinus and Heterobranchus longifilis, -scaly fishes- Cynoglossus senegalensis, Oreochromis aureus, O. niloticus, Lutjanus fulgens, Pomadasys rogeri, and Tilapia galilea, water columns and sediments, were investigated. Heavy metals assimilation and bioaccumulation varied among organisms with or without scales, tissue types, and fish location (water column & sediments) and pollution level.

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Oluwakemi, Oyelowo, Awobajo Funmileyi, Samuel Titilola, Sogbesan Teniola, Fayiga Adewale, and Mofolorunso Adekunle. "Condition factor, heavy metals and polychlorinated biphenyls (PCBs) in the muscle of fishes harvested in, and imported into Lagos, Nigeria." Aceh Journal of Animal Science 5, no. 1 (2020): 38–46. http://dx.doi.org/10.13170/ajas.5.1.14995.

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Fish is an important part of the human diet, are at the top of the aquatic food chain with a high propensity to accumulating contaminants like heavy metals and polychlorinated biphenyls (PCBs) which are toxic to humans. The objective of this study was to evaluate the relationship between condition factor (physiologic wellbeing) of the fishes, PCBs, and heavy metal accumulation.Ten adult fish species three each of Chrysichthys nigrodigitatus, Trachinotus teraia, Liza dumerilli, Tilapia guieensis, Pseudotolithus elongatus, Pomadasys jubelini, Polydactylus quadrifilis, Caranx hippos, Sphyreana ba

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SALIU, J. K., K. A. BAWA-ALLAH, O. C. SHOPADE, and I. A. AKINMUSIRE. "BIOACCUMULATION OF COMMONLY DETECTED METALS IN THE SILVER CATFISH (CHRYSICHTHYS NIGRODIGITATUS) COLLECTED FROM MAKOKO RIVER, LAGOS NIGERIA." Nigerian Journal of Life Sciences (ISSN: 2276-7029) 6, no. 1 (2022): 187–95. http://dx.doi.org/10.52417/njls.v6i1.311.

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This study investigated the bioaccumulation of selected essential and non essentialmetals in the silver catfish (Chrysichthys nigrodigitatus) collected from Makoko River,dead end of the Lagos Lagoon. Concentrations of Iron (Fe), Lead (Pb) and Calcium(Ca) were found to be higher in liver of Chrysichthys nigrodigitatus with mean valuesof 34.52± 6.52 mg kg-1, 1.02± 0.16 mg kg-1and 63.45± 8.62 mg kg-1respectivelycompared to concentrations detected in its gills with mean values of 32.64± 5.71 mgkg-1, 0.10± 0.01 mg kg-1 and 41.58± 6.56 mg kg-1 respectively. While concentrationsof Copper (Cu), Mangan

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Eunice, Opeyemi Idowu, and Alebiosu Charlse. "Ichthyofauna composition of Alape River, Igbokoda, South West Nigeria." Indian Journal of Science and Technology 13, no. 19 (2020): 1882–89. https://doi.org/10.17485/IJST/v13i19.136.

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Abstract <strong>Objectives:</strong> To study ichthyofauna composition of Alape River, Igbokoda, Ilaje Local Government Area of Ondo State, Nigeria. <strong>Method:</strong> Sampling was done for a period of three months, from the month of November 2019 to January 2020. Data for this study were based on the record of fish caught by local fishermen. <strong>Findings:</strong> A total of twenty thousand, four hundred and nine (20,409) individual fishes of six species (Heterotis niloticus, Clarias gariepinus, Chrysichthys nigrodigitatus, Gymnarchus niloticus, Oreochromis

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Nwachukwu, V. N., and C. U. Madubuko. "Microflora Associated With Processing and Storage of the White Catfish (Chrysichthys nigrodigitatus)." Journal of Fisheries and Aquatic Science 8, no. 1 (2012): 108–14. http://dx.doi.org/10.3923/jfas.2013.108.114.

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Nwachi, O. F. "Some Aspects of Ecology of Chrysichthys nigrodigitatus (Lacepede) in River Niger, Nigeria." Journal of Northeast Agricultural University (English Edition) 23, no. 3 (2016): 47–53. http://dx.doi.org/10.1016/s1006-8104(16)30058-7.

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Nkuene, Gbenekanu Sinclair, and Sylvanus Anene Nwafili. "Some Biological Characteristics of Chrysichthys nigrodigitatus from Luubara Creek, Niger Delta, Nigeria." European Journal of Theoretical and Applied Sciences 2, no. 2 (2024): 589–96. http://dx.doi.org/10.59324/ejtas.2024.2(2).51.

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The study of biological characteristic of C. nigrodigitatus caught using multiple and single long-line was carried out for twelve months. The Von –Bertallanffy growth function was used to estimate the growth characteristics. The growth coefficient (K) and growth performance index (Ø) were 0.740 and 2.37, respectively, indicating it grows fast. The instantaneous rates of total, natural, and fishing mortality were 3.23, 1.18 and 2.05 per year, respectively. The resultant exploitation ratio was 0.635, indicating that the fishery was overexploited. More so, the ratio of length at first capture (Lc

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Enyioha Okonko, Lawrence, Ekei Victor Ikpeme, and Michael O. Ozoje. "Molecular Evolution and Genetic Analysis of Silver Catfish (Chrysichthys nigrodigitatus) in Nigeria." Asian Journal of Biological Sciences 15, no. 2 (2022): 93–100. http://dx.doi.org/10.3923/ajbs.2022.93.100.

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Gbenekanu, Sinclair Nkuene, and Anene Nwafili Sylvanus. "Some Biological Characteristics of Chrysichthys nigrodigitatus from Luubara Creek, Niger Delta, Nigeria." European Journal of Theoretical and Applied Sciences 2, no. 2 (2024): 589–96. https://doi.org/10.59324/ejtas.2024.2(2).51.

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The study of biological characteristic of <em>C. nigrodigitatus </em>caught using multiple and single long-line was carried out for twelve months. The Von –Bertallanffy growth function was used to estimate the growth characteristics. The growth coefficient (K) and growth performance index (Ø) were 0.740 and 2.37, respectively, indicating it grows fast. The instantaneous rates of total, natural, and fishing mortality were 3.23, 1.18 and 2.05 per year, respectively. The resultant exploitation ratio was 0.635, indicating that the fishery was overexploited. More so, the ratio of

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S., Omeji, Kolndadacha O.D., and Adadu M.O. "Evaluation of Parasitofauna of Four Economically Important Fish Species (Synodontis Budgetti, Chrysichthys Nigrodigitatus, Bagrus Docmac and Heterobranchus Bidorsalis) From River Okpokwu, Apa, Nigeria." International Journal of Research and Review 9, no. 8 (2022): 753–65. http://dx.doi.org/10.52403/ijrr.20220863.

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The parasitic fauna of four economically important fish species comprising of Synodontis budgetti, Chrysichthys nigrodigitatus, Bagrus docmac and Heterobranchus bidorsalis from River Okpokwu, Apa, Nigeria, was investigated. A total of 161 fish samples comprising of 57 S. budgetti, 48 C. nigrodigitatus, 24 B. docmac and 32 H. bidorsalis were randomly purchased and subjected to parasitological examination. The overall parasite prevalence of all the fish species was 36.60% out of which S. budgetti, C. nigrodigitatus, B. docmac and H. bidorsalis accounted for 14.30%, 11.20%, 1.90% and 9.30%, respe

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Jolaoso, Anuoluwapo Omosileola, Kelechi Longinus Njoku, Modupe Olatunde Akinola, Adeola Alex Adesuyi, and Aderinola Hannah Adedokun. "Heavy metal analyses and nutritional composition of raw and smoked fishes from Ologe and Lagos Lagoon, Lagos, Nigeria." Journal of Applied Sciences and Environmental Management 20, no. 2 (2016): 277–85. http://dx.doi.org/10.4314/jasem.v20i2.7.

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This study was conducted to evaluate nutritional composition and heavy metals concentration of smoked and raw edible fish species from Ologe lagoon (freshwater) and Lagos lagoon (marine). The fish species from Ologe include: Chrysichthys nigrodigitatus (Catfish), Monodactylus sebae (African moony), Pomadasys jubelini (Buro), Sphyraena barracuda (Great barracuda), and Pseudotolithus elongatus (Croaker), while that of Lagos lagoon include Chrysichthys nigrodigitatus (Catfish), Caranx hippos (Crevalle jack), Liza falcipinnis (Sicklefin mullet), Pomadasys jubelini (Buro), and Monodactylus sebae (A

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Benoit, Kouamé Kouakou, Konan Kouakou Séraphin, Konan Koffi Félix, Boussou Koffi Charles, and Kouassi Kouakou Lazare. "Heavy Metals Contamination of an Aquatic Environment and Health Risks Assessment in Two Fish Species: Case of the Guessabo Lake, Western Côte d'Ivoire." Oriental Journal of Chemistry 35, no. 6 (2019): 1742–55. http://dx.doi.org/10.13005/ojc/350617.

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The purpose of this study was to evaluate the contamination by heavy metals and the health risks of the residents of a watershed of the Sassandra river. Water and fish samples were taken from Guessabo Lake during the dry season and the rainy season. The average Hg, Pb, Cd and Zn concentrations in the water samples decreased during the rainy season by 20.51%, 80%, 18, 26% and 61.4%, respectively. In contrast, the average concentrations of As, Cu, Mn and Fe increased by 10%, 84.3%, 48.98% and 11.45%, respectively. The concentrations of heavy metals in water samples follow the trend: Fe> Cu&gt

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Onu, Benefit. "Analysis of Heavy Metals in Chrysichthys nigrodigitatus, Micropogonias undulatus and Mugil cephalus Fish Species Caught in Brass River." Greener Journal of Environment Management and Public Safety 12, no. 1 (2024): 1–9. http://dx.doi.org/10.15580/gjemps.2024.1.031924037.

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This research analyses heavy metals presence in Chrysichthys nigrodigitatus, Micropogonias undulatus and Mugil Cephalus fish species found in Brass River. This study focuses on the concentrations of major heavy metals (Pb, Cd, Cr, Hg and As) in the three fishes named above. The fish samples were collected from fishermen from the Brass River during the months of September and October 2023. The heavy metal concentration in the fish samples were analysed through the Atomic Absorption Spectrophotometer in order to estimate the presence of heavy metals pollution in fish species of the river. The re

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Emeka Chima, Ogoko, Mgbemana Nkoli, Henrietta Kelle, Charles Ikenna Osu, and Esther Aju. "Health risk assessment of exposure to heavy metals in fish species consumed in Aba, Abia State, Nigeria." Ovidius University Annals of Chemistry 33, no. 2 (2022): 177–87. http://dx.doi.org/10.2478/auoc-2022-0026.

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Abstract The concentrations of heavy metals (Pb, As, Cr, Cu, Cd and Fe) were determined in the gills, liver and muscles of thirty-five fishes, water and sediment samples from Aba River using atomic absorption spectrophotometer. Heavy metal concentrations varied markedly among fish species and organs. Results revealed that Pb, Cr, Fe had maximum concentration levels of 0.63±0.01, 0.81±0.01 and 16.91 ± 0.20 mg/kg in Chrysichthys nigrodigitatus respectively. As and Cd recorded the highest concentration of 0.18±0.03 and 0.87±0.02 mg/kg in Malapterurus electricus respectively, while Trachurus trach

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AYOOLA, S. O., and F. Y. TAOREED. "HEAVY METALS ACCUMULATION IN WATER, SEDIMENT AND FISH (Chrysichthys nigrodigitatus AND Sarotherodon melanotheron) AT IGBEDE RIVER, LAGOS NIGERIA." Nigerian Journal of Life Sciences (ISSN: 2276-7029) 5, no. 2 (2022): 312–27. http://dx.doi.org/10.52417/njls.v5i2.266.

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The contamination of freshwaters due to several harmful substances, like metals, through inputs from anthropogenic sources, industrial and agricultural activities, domestic sewage, groundwater leaching and runoffs from agriculture has devastating effects on plants and animals. The Igbede River, located around Ojo local council area of Lagos state is one of such fresh water bodies. Investigation into the accumulation of heavy metals in the water, sediment and two fish species (Chrysichthys nigrodigitatus and Sarotherodon melanotheron) from Igbede river in Lagos State, Nigeria between March, 201

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Mekuleyi, G. O., O. O. Joseph, P. C. Ogbonna, M. O. Oginni, and D. M. Akinyemi. "Spatio-temporal variations of benzene, toluene, ethylbenzene, xylene (BTEX) in water, sediment and health risk assessment of three fin-fishes from three lagoons in Lagos, Nigeria." Global Journal of Fisheries Science 6, no. 2 (2024): 42–51. http://dx.doi.org/10.31248/gjfs2024.054.

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Adverse effects of exposure of human to benzene, toluene, ethylbenzene and xylene (BTEX) are enormous. Therefore, this study was conducted to examine and compare BTEX in water, sediment and fishes (Chrysichthys nigrodigitatus, Oreochromis niloticus and Ilishia africana) from Badagry, Ojo and Ologe Lagoons in Lagos State, Nigeria, and to investigate if consumption of the fish has any human health risks problem. Fish, water and sediment samples were collected for three months (May - July 2023) using standard procedures. Data were computed using Statistical Package for Social Sciences (SPSS versi

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Effiong, M. U., and M. E. Michael. "Influence of processing methods on quality and stability of silver catfish (Chrysichthys nigrodigitatus)." Journal of Aquatic Sciences 36, no. 1 (2021): 55–62. http://dx.doi.org/10.4314/jas.v36i1.5.

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The study assessed different processing methods (freezing, smoking, oven drying and boiling) on fillet nutritional quality and stability of silver catfish. All analyses followed standard procedure. Results of proximate composition showed significant increase (p< 0.05) in protein (51.98%), lipid (11.65%), ash (3.82%) and calorie (432.57 Kcal/g) contents in the dried fillets. Thus, these variable increased with increasing processing temperature. On the other hand, moisture and carbohydrate contents decreased with temperature. The stability indices showed significant differences (p < 0.05)

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