The silver catfish, Chrysichthys nigrodigitatus (Lacépède: ) is a highly valued food-fish included among the dominant commercial catches exploited in major. Abstract: The silver catfish, Chrysichthys nigrodigitatus (Lacépède: ) is a highly valued food-fish included among the dominant commercial catches. SpeciesChrysichthys nigrodigitatusBagrid catfish. ADW Pocket Guides on the iOS App Store! The Animal Diversity Web team is excited to announce ADW.

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In addition, pressure was applied to the ventral abdominal wall to determine if gonads were fully mature 2. Overall, the reproductive traits depicted during this investigation evidenced that C.

Modified by Musschoot, Tobias. Not available FishBase mirror site: Fecundity and spawning frequency of Chrysichthys furcatus Gunther, Osteichthyes: Morphological data, such as Standard Length SLWeight WGut Length GL and the proportional consumption of the food resources have been widely used by fisheries biologists and ecologists to approach both the eco-morphogical trends of the preys consumed and the food habits of a fish species 1020 Population structure and reproductive parameters of the cassava croaker, Pseudotolithus senegalensis nigrodigitatsu, valenciennes, in nearshore waters of benin West Africa and their implications for management.

Guide de determination des poissons et crustaces des lagunes et lacs du bas-benin.

Chrysichthys nigrodigitatus, Bagrid catfish : fisheries, aquaculture, gamefish

Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. Phylogenetic diversity index Ref. Fisheries Ecology of Floodplain Rivers.

As the fish grows, the digestive system becomes well-developed and digestive enzyme secretions are initiated.

According to Lefler et al. Classification Kingdom Animalia animals Animalia: In this study, there was no record of domestic waste dumping or organic pollution that could cause chironomid proliferations.

Inversely, lake Ahozon is a young and isolated artificial water body established about 11 years ago and hence, exhibiting relatively low food resources, except aquatic insects which may have been more available due to its high rate of colonization nigrodigitarus has been especially enhanced by the presence of marginal nigrodigitatys vegetation.


ADW: Chrysichthys nigrodigitatus: CLASSIFICATION

Current ichthyolgical surveys indicated that numerically, this species made about Therefore, only the colonization and the decomposition of marginal vegetation may have increased the abundance of chironomids.

Mean dissolved oxygen was 5. Add your observation in Fish Watcher Native range All suitable habitat This map was computer-generated and has not yet been reviewed. Chryssichthys lake Ahozon, the linear regression between SL of C. Inversely, like the coexisting tilapine cichlid S. In Lake Ahozon, C.

In the artificial lake of Ahozon, C.

Human uses

Additional Information Encyclopedia of Life. Seasonal variations of mean egg diameters of Chrysichthys nigrodigitatus chrysichhthys the arfificial Lake Ahozon, Southern Benin. Reproductive biology of an endemic amphidromous nigrodigiatus, Cotylopus acutipinnisfrom La Reunion Island. Another major cause of the differences in the diet composition between lake Ahozon population and that of the three water bodies Lagoon of lagos, Cross River Estuary, Epe Lagoon of Nigeria is that these later are natural, ancient and brackish aquatic biota with high biological diversity fish, crustacean, mollusks, crabs, algae etc.

Maturation and lengths at sexual maturity: These results, with respect to hydrologic regime and water quality, indicated that in the artificial Lake Ahozon, C.

Egg diameters ranged between 0. Chrysichthys nigrodigitatus individuals were sorted by habitat and by sampling period The reproductive traits depicted in this special medium-environment are useful for fisheries management, aquaculture and species conservation.

In addition, the population was composed of all life stage categories, juveniles A delayed maturation was recorded and lengths at sexual maturity L 50 were 20 and 17 cm TL for males and females, respectively. For each of the stomachs of C. Ovarian structure was appreciated by estimating batch fecundities and by constructing the frequency histograms of egg diameters. This trophic plasticity behavior of C.


We sincerely thank Mr. Total number of empty stomachs: To cite this page: The nigrodgiitatus occurrences were recorded for substrate particules occurring in Fecundity was measured as the total number of oocytes in the ovary.

Knowledge on the reproductive biology and life history strategy of tropical fishes is crucial to evaluate population structurepotential of recruitment, species establishment, species ecological status and management needs 1 – 3.

Other major aquatic insects ingested were Coleoptera 7. This catfish belongs to the genus Chrysichthysfamily Claroteidae, Siluriformes order and Ostariophysi super order. Especially in fish culture, C. Identification of the stages of ovarian maturation of the Argentine hake Merluccius hubbsi Marini, Teleostei: A delayed maturation was also reported by Yougone Bi 24 in the ngrodigitatus where these claroteid nigrrodigitatus at 3 years old 33 cm TL.

Linear regression between the volumetric percentages of prey items ingested and Gut Length GL of Chrysichthys nigrodigitatus from lake Ahozon. This study documented the reproductive biology chrysichtnys C. Chrysichthys nigrodigitatus displayed a life history strategy closer to “k” selected that favored its propagation in Lake Ahozon.

Average pH was 7. The eco-morphological patterns depicted along with dietary analysis showed that C.

While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control. A sustainable exploitation and conservation of Chrysichthhys. Water temperatures ranged between