| the fish fauna of anambra river basin, nigeria: species abundance and morphometry. | the fish yields of most nigeria inland waters are generally on the decline for causes that may range from inadequate management of the fisheries to degradation of the water bodies. sustainable exploitation requires knowledge of the ichthyofaunal composition in the water bodies. we did a survey of fish species in anambra river basin for 22 months. fish samples were collected using four different gears -hook and line of size 13, caste nets, gill nets, and cages of mesh sizes of 50 mm, 75 mm, and 1 ... | 2009 | 19637699 |