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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Influential environmental gradients and patterns of fish assemblages in a West African basin
Hydrobiologia, Volume 603, No. 1, Year 2008
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Description
Twenty-two sites were monitored in the Lower Sassandra River Basin (Côte d'Ivoire, West Africa) to examine patterns in fish species assemblage structure along environmental gradients. Hierarchical clustering of the species presence-absence data identified four types of assemblages corresponding to the man-made Lake Buyo, the main channel, and the two major tributaries. Canonical Correspondence Analysis (CCA) indicated that canopy closure, leaves-wood, aquatic plants, temperature, width, total dissolved solids and depth were the environmental factors most strongly correlated with variation in the fish assemblages. Five species: Papyrocranus afer, Micralestes elongatus, Parailia pellucida, Tilapia busumana and T. mariae were reported from the basin for the first time. The investigation of the variation in species richness led to the assessment of a major anthropogenic disturbance induced by a palm oil factory. In conjunction with the fact that the Sassandra River hosts an endemic species, Synodontis koensis, it was concluded that this basin is of high conservation priority. © 2007 Springer Science+Business Media B.V.
Authors & Co-Authors
Kouamé, Kouakou Augustin
Cote D'ivoire, Abidjan
Université de Cocody-abidjan
Yao, Stanislas S.
Cote D'ivoire, Abidjan
Université de Cocody-abidjan
Bi, Gooré
Cote D'ivoire, Abidjan
Université de Cocody-abidjan
Kouamélan, Essétchi Paul
Cote D'ivoire, Abidjan
Université de Cocody-abidjan
N'Douba, Valentin
Cote D'ivoire, Abidjan
Université de Cocody-abidjan
Kouassi, N’Guessan Louis Berenger
Cote D'ivoire, Abidjan
Université de Cocody-abidjan
Cote D'ivoire, Abidjan
Centre de Recherches Oceanographiques
Statistics
Citations: 35
Authors: 6
Affiliations: 2
Identifiers
Doi:
10.1007/s10750-007-9256-1
ISSN:
00188158
e-ISSN:
15735117
Study Locations
Multi-countries
Ivory Coast