The lake Victoria environment: its fisheries and wetlands - a review.

摘要: Recent ecological changes in the Lake Victoria ecosystem have been attributed to effects of species stockings and, particular, from predation pressure by Nile perch. Evidence for decline haplochromines due perch, while overwhelming, does not necessarily account these gross changes. Ecological theory predicts that natural fluctuation would occur a fisheries where predator and prey could alternate abundance. The absence substantial recovery endemic within cyclical abundance patterns (even though they be delayed), particularly pelagic profundal zones, points other causal factors.