Fish species composition/diversity of the Warri River, Niger Delta Nigeria
Changes in water quality caused by industrialization and technological advancement, affect fishery resources. The Warri River like many other water bodies in Niger Delta, Nigeria are experiencing side effects in terms of pollutant build up cum destruction of fishery resources. This study investigated the fish species composition/diversity of the river in comparison to the baseline studies of previous researchers. Nine sampling locations were chosen including, Jeddo, NNPC Jetty, Nigeria ports Authority jetty, Main Warri market, Delta Steel Jetty, Shell Ramp, Udu Bridge/market Ugbolokposo and Agbarho.Fish species were collected from the respective nine Locations monthly for 24 months. Fish were obtained from landings of local fishermen every fortnight with prior arrangement. Highest diversity index of 3.48 occurred at shell Ramp/Globestar, while the least value of 2.63 was recorded at NNPC Jetty. The condition factor of most fish species in the study were above 1.0, though more species were better conditioned in location 1 (Jeddo). The catfish families probably due to their hardy nature were best conditioned of all families represented. Thirty four fish species recorded in this study compared to 91 species obtained in previous works of 1989 -1994 reflects a sharp drop in species diversity.
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| Format: | conference_item biblioteca |
| Language: | English |
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FISON
2012
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| Subjects: | Fisheries, Pollution, Nigeria, Warri River, Fisheries resources, Specie diversity, Pollutants, Niger Delta, freshwater environment, Fish, Check lists, Species diversity, Water quality, Industrialization, Fishery resources, Condition factor, Baseline studies, Aquaculture development, Technology transfer, |
| Online Access: | http://hdl.handle.net/1834/38930 |
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