Vol. 5, Issue 1 (2020)
Gymnarchus niloticus (Cuvier, 1830), a treathened fish species in the lower river Niger at agenebode, Nigeria; the need for its conservation
Author(s): Agbugui MO, Umaru J
Abstract: Over the past decade a fluctuation and decline has been recorded by researchers indicating the total loss or decline of some fish species. This decline is a gradual indication that species are becoming threatened, endangered and at the verge of extinction. Gymnarchus niloticus is a fish in high demand. It is fleshy, its flesh is tough and tasty which makes it a very important component in the diet, culture and traditions of many Riverine communities in Nigeria. The fluctuation in abundance, decline and total absence at certain months of the year is creating concern for the fisher folks and researchers. Gymnarchus niloticus was sampled monthly for 24 months and t-Test was used at 0.05 probability level to test for the variations in abundance with seasons and years. 269 species of Gymnarchus niloticus (171 in the first 12 months and 98 in the second) were collected during the sampling period. Only 21 months recorded catch for G. niloticus. September and October had little catch while November recorded no catch at all. Gymnarhus niloticus is a fish in high demand. It’s declined and absence during certain months creates an opportunity for its conservation and management.
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