To see the other types of publications on this topic, follow the link: Clarias jaensis.

Journal articles on the topic 'Clarias jaensis'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 19 journal articles for your research on the topic 'Clarias jaensis.'

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

Paul, Zango, Mutlen Melvin, Efole Ewoukem Thomas, Ngnango Jean Blaise, Miranda Keng Kukuru, and Tomedi Eyango Minette. "Effects of Soybean Meal Substitution on the Growth and Survival of Clarias jaensis (Boulenger, 1909) Juveniles Using Chromolaena odorata Leaves Powder." Asian Journal of Fisheries and Aquatic Research 26, no. 1 (2024): 25–35. http://dx.doi.org/10.9734/ajfar/2024/v26i1723.

Full text
Abstract:
Aims: The aim was to contribute to the improvement of Clarias jaensis productivity through the evaluation of the effect of the substitution level of soybean meal by Chromolaena odorata leaves powder on the survival rate and growth characteristics of Clarias jaensis juveniles.
 Place and Duration of the Study: From April to June 2019 at TAWON (LN: 5°10' - 5°20' and LE: 10°20' - 10°21'). Sudano-Guinean altitude zone of West Cameroon.
 Study Design: Two hundred and twenty-five Clarias jaensis juveniles (12.44 ± 0.15g) were divided into five treatments corresponding to 0; 10; 15; 20 and 25% of substitution level of soybean meal by Chromolaena odorata leaves powder.
 Methodology: They were fed twice a day (8:00 A.M. and 6:00 P.M.) at 5% of ichthyobiomass, total length, live body weight and physicochemical parameters were measured every tree week for 84 days.
 Results: At the 15% substitution level of soybean meal, the survival rate was the highest (100%). Mean Final Weight and Mean Daily Weight Gain were significantly (P≤0.05) higher at 15% (45.73 ± 7.45g and 0.56 ± 0.31g/d). Specific Growth Rate and Condition factor K were higher at 25% (1.41 ± 0.68%/d and 1.08 ± 0.22%g/cm3), however, no significant differences were recorded. The cost of feed to produce one kg of C. jaensis was lower at 15% (609.61 Fcfa).
 Conclusion: Soybean meal can be substituted by C. odorata leaves powder at 15% in feed for C. jaensis juveniles.
APA, Harvard, Vancouver, ISO, and other styles
2

Tonfack Djouatsa, Juvenal, Félix Meutchieye, Paul Zango, et al. "Phenotypic features depict variability in <i>Clarias jaensis</i> wild populations in Cameroon." Cameroon Journal of Experimental Biology 18, no. 01 (2024): 41–48. http://dx.doi.org/10.4314/cajeb.v18i01.6.

Full text
Abstract:
This study was conducted to contribute to a better understanding of the phenotypic diversity of natural populations of Clarias jaensis in Cameroon, with the objective to harness the exploitation and conservation of this native catfish. A total of 269 native catfish (Clarias jaensis), including 139 males and 130 females, were sampled on 6 sites in Cameroon. One (1) phaneroptic observation, seventeen (17) biometric traits and four (4) meristic traits were evaluated. The main results showed that there are three colour patterns (brown, black and marbled) on the dorsal region and flanks in Clarias jaensis, with a predominance of brown (81.04%) and black (11.52%) patterns. The effect of sex on total weight (TW), snout length (SnL), prepelvic length (PPvL), total length (TL), standard length (SL), body depth (BD) and caudal peduncle depth (CPD) was significant (p&lt;0.05). In general, biometric traits were significant (p&lt;0.05) and positively correlated with total weight. The number of soft fin rays in dorsal fin (D) and anal fin rays (A) were negatively and weakly correlated with total weight (r=-0.02 and r=-0.04 respectively), while, the number of soft fin rays in pectoral fin was negatively and weakly correlated with total weight (r=0.13). The Principal Component Analysis (PCA) performed on all the biometric and meristic traits shows that the first two axes alone account for more than 50% of the total inertia. Hierarchical Ascending Classification (HAC) highlighted the existence of 3 morphotypes. The observed biodiversity suggests that the Clarias jaensis catfish is a natural genetic resource with the necessary variability to be exploited, though there is a need to develop population and habitats monitoring plan.
APA, Harvard, Vancouver, ISO, and other styles
3

Tiogué, Claudine Tekounegning, Paulin Nyadjeu, Simplice Raymond Mouokeu, Guegang Tekou, and Hilaire Tchoupou. "Evaluation of Hybridization in Two African Catfishes (Siluriformes, Clariidae): Exotic (Clarias gariepinus Burchell, 1822) and Native (Clarias jaensis Boulenger, 1909) Species under Controlled Hatchery Conditions in Cameroon." Advances in Agriculture 2020 (December 10, 2020): 1–11. http://dx.doi.org/10.1155/2020/8985424.

Full text
Abstract:
The study was conducted to evaluate reciprocal hybridizations in the African catfishes Clarias gariepinus and Clarias jaensis using artificial reproduction under controlled hatchery conditions. The results revealed that the highest fertilization (82.77%) and hatching (67.77%) rates were achieved in the hybrid cross female C. jaensis × male C. gariepinus (Fcj × Mcg). Deformed larvae rates ranged from 9.01 to 16.33%; the hybrid Fcj × Mcg recorded the lowest rate. Survival rates in the larval stage were higher than 80% whatever crossing considered. However, it was higher in the hybrid Fcj × Mcg unlike its homologous female C. gariepinus × male C. jaensis (Fcg × Mcj) which recorded the lowest value (81.70%). In the fry stages D32, survival rates were low than 65%. They were higher and comparable in parental cross Fcg × Mcg (57%) and hybrid cross Fcj × Mcg (61.67%). The lowest survival rate (41.16%) was recorded in parental cross Fcj × Mcj. The hybrid cross Fcj × Mcg expressed the highest growth performances close to those of parental cross Fcg × Mcg, unlike parental cross Fcj × Mcj. Size heterogeneity was greater in hybrids. In all crosses, the condition factor K was low (0.58 to 0.85%), the length-weight relationship was significant with determination coefficient R2 greater than 0.9. The growth was of the negative allometric type (with b less than 3). Positive heterosis has been recorded for both survival and growth at all stages of development. It was concluded that C. jaensis × C. gariepinus hybridizations are indeed possible and would contribute to improve Clarias fry production in captivity. However, the pure strains of Clariidae remain endangered in the natural environment.
APA, Harvard, Vancouver, ISO, and other styles
4

Gwladys, Tsoupou Kuété Suzy, Efole Ewoukem Thomas, Moussala Ottoko, and Tchoumboue Joseph. "EFFECT OF VARIOUS LEVELS OF METABOLIZE ENERGY ON GROWTH PERFORMANCE OF CLARIAS JAENSIS FINGERLINGS (BOULENGER, 1909)." International Journal of Research -GRANTHAALAYAH 6, no. 5 (2018): 65–72. http://dx.doi.org/10.29121/granthaalayah.v6.i5.2018.1427.

Full text
Abstract:
The aim of this study was to contribute to the improvement of knowledge on the growth of endogenous catfish of Cameroon Clarias jaensis to develop the standards of his breeding. For this purpose, 396 fingerlings (36.7 ± 10.1 g) were divided into four comparable group with three replications. Four experimental rations containing 3000, 3100, 3200 and 3300 Kcal/kg of metabolize energy were distributed in these group at 5% of ichtyobiomasse. Except the feed intake and survival rate, other growth characteristics were comparable (P&gt;0.05) between rations. The higher feed intake and the lowest consumption index were recorded with the ration containing 3000 Kcal/kg. The weight (95.10 ± 8.14 g), total length (23.77 ± 1.15 cm), weight gain (58.70 ± 9.49g), average daily gain (1.01 ± 0.16 g), specific growth rate (1.66 ± 0.26%) and K factor (0.71 ± 0.05) were higher with the ration containing the lowest level of energy. This reveals that Clarias jaensis fingerlings requires less energy for growth compared to other catfish like Clarias gariepinus. In view of the above and given the cost of manufacturing the food, the ration containing 3000 kcal/kg would be agro economically sustainable although the search for the optimal level of energy remains.
APA, Harvard, Vancouver, ISO, and other styles
5

Tsoupou, Kuété Suzy Gwladys *1, Ewoukem Thomas 2. Efole, Ottoko Junior 1. Moussala, and Joseph 1. Tcthoumboue. "EFFECT OF VARIOUS LEVELS OF METABOLIZE ENERGY ON GROWTH PERFORMANCE OF CLARIAS JAENSIS FINGERLINGS (BOULENGER, 1909)." International Journal of Research - Granthaalayah 6, no. 5 (2018): 65–72. https://doi.org/10.5281/zenodo.1254567.

Full text
Abstract:
The aim of this study was to contribute to the improvement of knowledge on the growth of endogenous catfish of Cameroon Clarias jaensis to develop the standards of his breeding. For this purpose, 396 juveniles (36.7 &plusmn; 10.1 g) were divided into four comparable group with three replications. Four experimental rations containing 3000, 3100, 3200 and 3300 Kcal/kg of metabolize energy were distributed in these group at 5% of ichtyobiomasse. Except the feed intake, survival and other growth characteristics were comparable (P&gt;0.05) between rations. The higher feed intake and the lowest consumption index were recorded with the ration containing 3000 Kcal/kg. The weight (95.10 &plusmn; 8.14 g), total length (23.77 &plusmn; 1.15 cm), weight gain (58.70 &plusmn; 9.49g), average daily gain (1.01 &plusmn; 0.16 g), specific growth rate (1.66 &plusmn; 0.26%) and K factor (0.71 &plusmn; 0.05) were higher with the ration containing the lowest level of energy. This reveals that Clarias jaensis fingerlings requires less energy for growth compared to other catfish like Clarias gariepinus. In view of the above and given the cost of manufacturing the food, the ration containing 3000 kcal/kg would be agro economically sustainable although the search for the optimal level of energy remains.
APA, Harvard, Vancouver, ISO, and other styles
6

Paul, Zango, Thomas Efole Ewoukem, Tomedi Eyango Minette Epse Tabi Abodo, Afane Kety Sandra, Victor Pouomogne, and Joseph Tchoumboue. "Effect of the Incorporation Level of Ripe Avocado Pulp Powder Persea americana on the Zootechnical Performances of Clarias jaensis Juveniles (Boulanger, 1909)." European Journal of Theoretical and Applied Sciences 1, no. 6 (2023): 217–28. http://dx.doi.org/10.59324/ejtas.2023.1(6).22.

Full text
Abstract:
In order to contribute to the valorization of agricultural by-products in fish feed, the effect of the incorporation level of the ripe avocado pulp powder persea americana on the zootechnical performance of Clarias jaensis Juveniles (Boulanger, 1909), was studied between February and July 2019 in the highland zone of West Cameroon. To attend the aims, 156 juvenile Clarias jaensis (25.82 ± 7.43g) settled in triplicates in floating tanks were fed four iso-protein rations (40% crude protein) corresponding to 0, 8, 12 and 16% incorporation of ripe avocado. Feed were distributed twice daily (8 am and 6 pm) at 5% of the fish biomass for 63 days. The following results were as follows: Survival rate, final mean weight, daily mean weight gain, specific growth rate and condition factor K were higher and non-significant in batches receiving 8% of ripe avocado pulp powder with a lower feed conversion ratio (99,14 ± 0,50% ; 40,22 ± 10,5g; 0,14 ± 0,44 g/d, 0,41 ± 1,07 %g/d; 0,70 ± 0,09 %g/cm3 and 1,87 ± 0,09) and lower with a highest feed conversion ratio at 16% incorporation (93,67 ± 8,47 %; 30,02 ± 8,00g; 0,08 ± 0,22 g/d; 0,28 ± 0,77 % g /d; 0,68 ± 0,15 %g/cm3 and 2,018 ± 017). Body composition varied with the level of pulp meal incorporation, water content was high with 0% (79.14%), and dry matter (23.87%), crude protein (15.35%) and fat (5.23%). It was higher with 16%, while ash was higher (3.45%) in batches fed with 12% incorporation. The feed cost was lower at 8% incorporation (734.89Fcfa/kg of fish produced). The incorporation of 8% avocado pulp meal was found to improve the growth of Clarias jaensis juveniles and reduce the feed cost. Producers can use spoiled avocados as fish feed to reduce production costs, without negative impact on the final product.
APA, Harvard, Vancouver, ISO, and other styles
7

Zango, Paul, Efole Ewoukem Thomas, Eyango Minette Epse Tabi Abodo Tomedi, Kety Sandra Afane, Pouomogne Victor, and Tchoumboue Joseph. "Effect of the Incorporation Level of Ripe Avocado Pulp Powder Persea americana on the Zootechnical Performances of Clarias jaensis Juveniles (Boulanger, 1909)." European Journal of Theoretical and Applied Sciences 1, no. 6 (2023): 217–28. https://doi.org/10.59324/ejtas.2023.1(6).22.

Full text
Abstract:
In order to contribute to the valorization of agricultural by-products in fish feed, the effect of the incorporation level of the ripe avocado pulp powder <i>persea americana </i>on the zootechnical performance of <i>Clarias jaensis </i>Juveniles (Boulanger, 1909), was studied between February and July 2019 in the highland zone of West Cameroon. To attend the aims, 156 juvenile <i>Clarias jaensis (</i>25.82 ± 7.43g) settled in triplicates in floating tanks were fed four iso-protein rations (40% crude protein) corresponding to 0, 8, 12 and 16% incorporation of ripe avocado<i>. </i>Feed were distributed twice daily (8 am and 6 pm) at 5% of the fish biomass for 63 days. The following results were as follows: Survival rate, final mean weight, daily mean weight gain, specific growth rate and condition factor K were higher and non-significant in batches receiving 8% of ripe avocado pulp powder with a lower feed conversion ratio (99,14 ± 0,50% ; 40,22 ± 10,5g; 0,14 ± 0,44 g/d, 0,41 ± 1,07 %g/d; 0,70 ± 0,09 %g/cm3 and 1,87 ± 0,09) and lower with a highest feed conversion ratio at 16% incorporation (93,67 ± 8,47 %; 30,02 ± 8,00g; 0,08 ± 0,22 g/d; 0,28 ± 0,77 % g /d; 0,68 ± 0,15 %g/cm3 and 2,018 ± 017). Body composition varied with the level of pulp meal incorporation, water content was high with 0% (79.14%), and dry matter (23.87%), crude protein (15.35%) and fat (5.23%). It was higher with 16%, while ash was higher (3.45%) in batches fed with 12% incorporation. The feed cost was lower at 8% incorporation (734.89Fcfa/kg of fish produced). The incorporation of 8% avocado pulp meal was found to improve the growth of <i>Clarias jaensis </i>juveniles and reduce the feed cost. Producers can use spoiled avocados as fish feed to reduce production costs, without negative impact on the final product.
APA, Harvard, Vancouver, ISO, and other styles
8

Igejongbo, Igejongbo, Toyosi Fadekemi, and Olufade Esther. "Gut Content and Viscerosomatic Index Analysis of Family Clariidae in the Riverine Area of South Western Nigeria." East African Scholars Journal of Agriculture and Life Sciences 5, no. 3 (2022): 53–59. http://dx.doi.org/10.36349/easjals.2022.v05i03.001.

Full text
Abstract:
Fish gut content analyses refer to methods of analyzing fish diet through assessment of materials found in dissected fish stomach. This work was conducted to determine the gut content, most frequently consumed prey and viscerosomatic index of the Clariidae species found in riverine area in south western Nigeria. The study spanned for six months (December, 2020 to May, 2021). Fish samples were examined fresh using frequency of occurrence, number and degree of fullness to examine the guts. Out of the 99 specimens collected in total, 45.83% and 54.17% of Clarias gariepinus, had ¼ full stomachs and half full stomachs respectively; 60%, 36.67%, 3.33% of Clarias jaensis had ¼ full, half full and ¾ full stomachs stomachs respectively, 63.33% and 36.67% of Clarias anguillaris had ¼ full and half full stomachs respectively while Clarias agboyiensis and Clarias pachynema species had similar stomach fullness of 33.33% for ¼ fullness and 66.67% for half fullness with none of the species having empty nor 100% full stomachs. Result also showed that the examined species are indiscriminate feeders; feeding on both plants and animals. The viscerosomatic index showed that the species had more flesh than carcass, giving an inference that the species have reasonable nutritional value and FCR. In conclusion, the Clariidae species were found to be omnivores and as such are to be provided with more natural materials in their environment for proper growth.
APA, Harvard, Vancouver, ISO, and other styles
9

Zango, Paul, Claudine Tekounegning Tiogue, Paulin Nyadjeu, et al. "Effect of the Type of Pituitary Extracts and Dose of Synthetic Hormones HCG and Ovaprim on Some Reproductive Characteristics of the Endogenous Catfish of Cameroon Clarias jaensis (Boulanger, 1909) in a Controlled Environment." Asian Journal of Fisheries and Aquatic Research 25, no. 5 (2023): 105–16. http://dx.doi.org/10.9734/ajfar/2023/v25i5704.

Full text
Abstract:
Aims: Improve the domestication of Clarias jaensis through fry production in a controlled environment.&#x0D; Place and Duration of the Study: From April to August 2020 in Integrated Aquaculture Common Initiative Group of West in Batie (LN: 5°17'0''-5°18'53'' and LE: 10°17'0''-10°19'31''), Sudano-Guinean altitude zone of West Cameroon.&#x0D; Study Design: 42 females and 15 males of respective weight and size: 177±40.46g, 347.62±111.72g, 29.02±1.74cm and 39.52±12.27cm were used and divided into 7 batches of comparable weights and sizes. Two randomly selected batches were subjected to the female pituitary extract of Clarias jaensis and Toads, five others to the synthetic hormones HCG (doses 3800 and 4000 IU/kg live weight) and Ovaprim (doses of 0.4, 0.5 and 0.6 ml/kg) respectively.&#x0D; Methodology: Eggs were enumerated by direct observation after fertilization. At the end of the hatching (D1) and of vitelline resorption (D3), the larvae of each experimental lot were counted and measured.&#x0D; Results: The mean diameter of the oocytes after induction, the relative and absolute fecundities and the fertility rate were higher in batches treated with the hormone HCG at a dose of 4000 IU/kg (2.12±0.1mm; 29,584±5,19 oocytes/g; 4694±620 oocytes and 80.14±9.78%), the lowest values were obtained with HCG at 3800 IU /kg, Ovaprim at 0.4ml/kg, pituitary toad extract and Ovaprim at 0.5 ml/kg (1.93±0.06mm; 15.29 ± 4.22 oocytes/g; 1410±106 oocytes and 55.34±1.51%). The hatchability rate was higher with Ovaprim at 0.6ml/kg, followed by HCG at 4000 IU/kg, However, no significant differences were observed between treatments (P&gt;0.05)."&#x0D; Conclusion: In a fish farm of intensive production, the use of the hormone Ovaprim dose 0.6 ml/kg or HCG at 4000IU/kg will lead to high results.
APA, Harvard, Vancouver, ISO, and other styles
10

Bahanak, Dieu-Ne-Dort, Jonathan A. Mbondo, Etienne D. Bassock Bayiha, et al. "Description of a new species from Clarias maclareni and phylogenetical analysis of Quadriacanthus (Monogenea, Dactylogyridae) species transfers between clariid and non-clariid fish hosts in Cameroon." Parasite 29 (2022): 37. http://dx.doi.org/10.1051/parasite/2022035.

Full text
Abstract:
Recently in Cameroon, two species belonging to Quadriacanthus: Q. anaspidoglanii Akoumba, Tombi &amp; Bilong Bilong, 2017 and Q. euzeti Nack, Pariselle &amp; Bilong Bilong, 2016 have been recorded on gill filaments of Notoglanidium macrostoma (Siluriformes, Claroteidae) in the Memou’ou River (Nyong Basin) and Papyrocranus afer (Osteoglossiformes, Notopteridae) in Lake Ossa, respectively. These records have been considered the result of lateral transfers from Clariidae to a Claroteidae host for the first case (parasitism of N. macrostoma by Q. anaspidoglanii) and from Clariidae or Bagridae to a Notopteridae host for the second (parasitism of P. afer by Q. euzeti). In this paper, the investigation of interspecific relationships among Quadriacanthus spp. parasitizing Clariidae, Bagridae, Claroteidae and Notopteridae in Cameroon resulted in the record of Q. anaspidoglanii from N. macrostoma, Q. euzeti from P. afer, a new record of Q. levequei Birgi, 1988 from Clarias jaensis in the Nyong River, and the description of Q. barombiensis n. sp. from Clarias maclareni in Lake Barombi Mbo. The newly identified species is characterized by having an accessory piece ending in one small hook and the median expansion of its dorsal bar with two filaments. Phylogenetic analysis based on 28S rDNA sequences confirms that the Quadriacanthus spp. parasitizing gill filaments of non-clariid hosts in Cameroon originate from lateral transfers from clariid fishes, and that Clariidae are ancestral hosts of these monogenean species.
APA, Harvard, Vancouver, ISO, and other styles
11

Kuete, Suzy Gwladys Tsoupou, Tchouante TCG, Nana TA, et al. "Effect of Dietary Energy Level on Some Reproductive Characteristics of Clarias jaensis Female (Boulenger, 1909), an Endogenous Species from Cameroon." International Journal of Oceanography & Aquaculture 8, no. 3 (2024): 1–12. http://dx.doi.org/10.23880/ijoac-16000330.

Full text
Abstract:
To determine the level of food energy necessary for a good sexual maturation of Clarias jaensis females in captivity, 180 post fingerlings with average weight of 96 ± 7g were submitted in triplicates to four experimental isoproteic (40 % crude protein) diet with 3000, 3100, 3200 and 3300 Kcal/kg of energy. The study took place at the Application and Research Farm of the University of Dschang for 4 months. At the end of the test, 12 females presenting the sexual maturity characteristics (bloated belly containing mature oocytes) from each group were sacrificed. The results showed that FSH (0.81 ± 0.35 mlU/ml) and LH (0.66 ± 0.23 mlU/ml) were higher at 3100 Kcal/kg while the higher concentration of estradiol (450,00 ± 109,86 pg/ml), the higher weight of ovaries (31,88 ± 6,86g) and the higher rate of mature female (75%) were recorded with 3000 Kcal/kg. Other reproductive characteristics such as ovarian biochemical characteristics, GSI, HSI and oocyte characteristics were also better with lower energy diets. In conclusion, females with the best reproductive characteristics were obtained with low energy rations.
APA, Harvard, Vancouver, ISO, and other styles
12

Zango, Paul, Minette Tabi Eyango Tomedi, Claudine Tekounegning Tiogue, et al. "Performances comparées de survie et de croissance d’Oreochromis niloticus associé à Clarias jaensis et à Clarias gariepinus." Cameroon Journal of Experimental Biology 11, no. 1 (2019): 1. http://dx.doi.org/10.4314/cajeb.v11i1.1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
13

Ilomor, Innocent, and Robert Ikomi. "COMPOSITION, ABUNDANCE AND DISTRIBUTION OF NON-CICHLID FISH COMMUNITY IN OGBO STREAM AND ITS FLOODPLAIN, ENHWE, DELTA STATE, NIGERIA." Nigerian Journal of Science and Environment 22, no. 1 (2024): 125–39. http://dx.doi.org/10.61448/njse2212410.

Full text
Abstract:
A preliminary survey of the composition, abundance and distribution of non-cichlid fish community was carried out at Ogbo stream and its floodplain in Enhwe, Delta StateNigeria. Water samples and fishes were sampled and analyzed using APHA methods and standard fishing gear respectively. The physicochemical parameters revealed distinct values for station 1 (Temperature: 25.63°C, Transparency: 25.09 cm, Sulphate: 7.56 mg/L) and station 2 (Temperature: 23.60 °C, Transparency: 19.90 cm, Sulphate: 6.68 mg/L). Among the parameters, only Temperature, Transparency, and Sulphate exhibited a noteworthy difference (p&lt;0.05) between the two stations. Transparency had a negative correlation with other parameters in Station 1.A total of 725 individual fish species belonging to eight families and genera were sampled. Among the notable findings, Clariidae emerged as the most abundant family, constituting 82.90% of the total relative abundance across both stations. Clarias camerunensisexhibited the highest abundance, comprising 62.20% of the total individuals sampled. Parachanna africanaand Clarias pachynemaalso demonstrated significant presence, contributing 15.00% and 13.20% to the total relative abundance, respectively. ANOVA indicates a significant difference in the composition and abundance of fish species between the stream and floodplain (p &lt; 0.05), emphasizing the influence of habitat-specific factors. The Margalef’s richness (1.67), dominance (0.64), diversity (1.32) and evenness (0.34) index of fishes was higher in the stream than in the floodplains. Magnesium, sulphate, temperature, and transparency were positively correlated to the distribution patterns of Pantodon bucholzi, Clarias jaensis, Phractolaemus ansorgei, and Heterotis niloticusin station 1, with the exception of P. africanaand Polypterus senegalus. There was a negative association between dissolved oxygen, nitrate, pH, and Iron, and the distribution of fishes in station 2. Ogbo stream and its floodplain have low abundance and distribution of fish species. Therefore, it demands for sampling efforts and long-term studies to unravel the checklist of species
APA, Harvard, Vancouver, ISO, and other styles
14

Boddis, Zebaze Tsiguia. "Influence of temperature on survival, yolk utilization, growth, and morphometric anomaly rates in post-embryonic Clarias jaensis under controlled conditions." International Journal of Agronomy and Agricultural Research (IJAAR) 26, no. 2 (2025): 1–9. https://doi.org/10.5281/zenodo.15468965.

Full text
Abstract:
Captive breeding of&nbsp;<em>Clarias jaensis</em>&nbsp;remains limited due to a lack of knowledge regarding optimal temperature conditions to ensure larval survival and early development. This study evaluated the impact of different temperatures on survival, yolk absorption, linear growth, and the rate of morphometric anomalies in post-embryos. A total of 580 newly hatched post-embryos were evenly distributed in 10 trays, placed in pairs in five polyester tanks. Each tank was subjected to one of the five experimental temperatures: 22&deg;C, 25&deg;C, 27&deg;C, 29&deg;C, and 31&deg;C. Survival and anomaly rates were analyzed using the Kaplan-Meier test, while the evolution of yolk sac volume and larval length was studied using a one-factor ANOVA. The results show that the best survival rates were obtained at 25&deg;C (96.5 &plusmn; 3.5%), 27&deg;C (91.5 &plusmn; 6.4%), and 22&deg;C (90 &plusmn; 2.8%). No survival was observed at 29&deg;C and 31&deg;C after three and two days post-hatching, respectively. Yolk absorption was significantly faster at 27&deg;C (98.92 &plusmn; 0.58%), while differences in linear growth were not significant between 22&deg;C, 25&deg;C, and 27&deg;C. The most frequent morphometric anomalies included pericardial edema, yolk edema, and skeletal deformities, with a lower malformation rate at 25&deg;C (4.5%) compared to 22&deg;C and 27&deg;C. Based on these results, it is recommended to stabilize the breeding temperature at 25&deg;C to maximize survival, and at 27&deg;C to promote rapid growth and yolk absorption. published by the&nbsp;<strong> International Journal of Agronomy and Agricultural Research (IJAAR)</strong> &nbsp;
APA, Harvard, Vancouver, ISO, and other styles
15

Zango, Paul, Minette Tabi Eyango Tomedi, Thomas Ewoukem Efole, et al. "Performances de reproduction du poisson chat endogène du Cameroun Clarias jaensis (Boulenger, 1909) en milieu contrôlé." International Journal of Biological and Chemical Sciences 10, no. 2 (2016): 533. http://dx.doi.org/10.4314/ijbcs.v10i2.7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Suzy Gwladys, Tsoupou Kuété, Komguep Nganyo Ronald, Guefack Maguim Sosthene, Defang Fualefac Henry, and Efole Ewoukem Thomas. "Effect of Substitution of Fish Meal by Maggot Meal on Growth Characteristics of Clarias Jaensis (Boulenger, 1909)." International Journal of Food Science and Agriculture 7, no. 1 (2023): 48–55. http://dx.doi.org/10.26855/ijfsa.2023.03.008.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Tchoffo, Herve, Boddis Tsiguia Zebaze, Raïssa Flora Nomegne Fo, et al. "Survival Rate and Reproductive Traits of Clarias jaensis Broodstock Reared at Graded Levels of Water Temperature in West Region of Cameroon." Journal of Fisheries and Aquatic Science 18, no. 1 (2023): 20–30. http://dx.doi.org/10.3923/jfas.2023.20.30.

Full text
APA, Harvard, Vancouver, ISO, and other styles
18

Ntsoli, Justin, Félix Meutchieye, Algrient Nana Towa, Donatien Bishakabalya Lwendje, and Minette Eyango Tabi Tomedi. "Embryonic and Larval Development of Reciprocal Crosses between <i>Clarias gariepinus</i> (Burchell, 1822) and <i>Clarias jaensis</i> (Boulenger, 1909) in West Cameroon." Agricultural Sciences 15, no. 08 (2024): 848–63. http://dx.doi.org/10.4236/as.2024.158047.

Full text
APA, Harvard, Vancouver, ISO, and other styles
19

P., Zango, Mutlen M., Ngouana T.R., et al. "Effect of the Substitution Levels of Zea mays by Ripe and Unripe Banana Peels Powder Musa paradisiaca on the Survival and Some Growth Characteristics of Clarias jaensis (Boulenger, 1909) Juveniles." Journal of Aquatic Science and Marine Biology 5, no. 1 (2024): 11–20. http://dx.doi.org/10.22259/2638-5481.0501002.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!