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Preliminary Assessment of the Feeding Ecology of Silver Catfish (Schilbe intermedius, Ruppel, 1832) in a Seasonal Floodplain of the Okavango Delta
K. Mosepele, B. Mosepele and L. Williams
Botswana Notes and Records
Vol. 37, Special Edition on Human Interactions and Natural Resource Dynamics in the Okavango Delta and Ngamiland (2005), pp. 208-217
Published by: Botswana Society
Stable URL: http://www.jstor.org/stable/40980414
Page Count: 10
You can always find the topics here!Topics: Fish, Catfish, Fish feeding, Silver, Floodplains, Ecology, Freshwater fishes, Species, Predators, Ecological competition
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This study investigates the feeding ecology of Schilbe intermedius across its entire life history. Data were collected using experimental fishing nets in two habitats in a seasonal floodplain. The results showed that S. intermedius has an ontogenetic shift in feeding behaviour where the young fish are primarily generalist predators, feeding on aquatic invertebrates while the older fish are more specialised predators feeding primarily on fish. This study showed that there is a higher potential for intra-specific competition among the older fish than in the younger size classes. However, it was recognized that this study is a snap-shot of the feeding ecology of S. intermedius and that a longer time series study is needed to study its feeding ecology.
Botswana Notes and Records © 2005 Botswana Society