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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Njgrodigitatus of individual fish were removed from the abdominal region and length and width were measured with a vernier caliper ruler to the nearest 0. Journal of Fisheries and Aquatic Science, Lake Ahozon throughtout the country could serve as alternative medium-environments and could be valorized for the developpement of C.

Chrysichthys nigrodigitatus, Bagrid catfish : fisheries, aquaculture, gamefish

In Lake Ahozon, C. Nevertheless, like lake Ahozon population, detritus were consistently found in the diet of these three lakes Lagoon of lagos, Cross River Estuary, Epe Lagoon from Nigeria.

In the tropical estuary of Nigeria, Asuquo et al. This size-related foraging trend of C. All subsamples from hooks, gill nets, seining and cast nets were put together by habitat and season to assess the relative abundance of C. Batch fecundity F b was estimated for ripe ovaries and allometric relationships between fecundity and body length were examined by following Eq.


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Zooplanktons genera recorded in lake Ahozon were Trichocerca, Keratella, Brachionus and copepods. As the fish grows, the digestive system becomes well-developed and digestive enzyme secretions are initiated. The establishment of C. Population structure and reproductive parameters of the cassava croaker, Pseudotolithus senegalensis pisces, valenciennes, in nearshore waters chrysihcthys benin West Africa and their implications for management.

Family Claroteidae Claroteid catfishes. Chrysichthys nigrodigitatus has been introduced in the artificial Lake Ahozon by the fishermen on December, in order to valorize this abandoned water body and to get substantial revenues.

Estimates of some properties based on models Phylogenetic diversity index Ref. In Lake Ahozon, the highest proportions of mature females reached The eco-morphological patterns depicted along with dietary analysis showed that C. The Animal Diversity Web online. Likewise, egg diameters significantly varied with seasons flood, dry and wet.

Also present in the lower Congo River Ref.

Also, seasonal variation s were observed with diameters varying between 0. In fishes, fecundity is an important chrysichtgys attribute utilized to evaluate the reproductive capacity of a species During the study period, Lake Ahozon showed depths and transparencies ranging between Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts.

In contrast, the highest fecundities recorded for C. Population dynamics and gillnets selectivity of Chrysichthys nigrodigitatus Lalepede in lower reaches of the Cross River Estuary, Nigeria.


Overall, the reproductive traits depicted during this investigation evidenced that C. These results indicated that, in this special habitat, aquatic insects were the major food items consumed by this introduced catfish species. The prey items belonging to a given category were gathered into a single sample for volumetric estimates.

In males, mature individuals were abundant in May and June, nigrrodigitatus reached These results suggested that the man-made Lake Ahozon was a suitable medium-environment for the proliferation of C. These feeding patterns depicted indicated that C.

Human uses

Fishery and ontogenetic driven changes in the diet of the spiny dogfish, Squalus acanthiasin Patagonian waters, Argentina. To document the feeding ecology of C. Yearly rainfall averaged Cambridge University Press, UK. These differences recorded in the diet composition could be partially chrysichthjs to the period of sampling between study regions. Egg diameter frequency distributions of Chrysichthys nigrodigitatus sampled in lake Ahozon during the flooding season.

Total number of empty stomachs: Fish assemblages in the degraded mangrove ecosystems of the coastal zone, Benin, West Africa: This study documented the reproductive biology of C.

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