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- Title
Ontogenic Changes in Prey Ingested by Nile perch ( Lates niloticus) Caught in Nyanza Gulf of Lake Victoria, Kenya.
- Authors
Outa, Nicholas O.; Yongo, Edwine; Keyombe, Jameslast A.
- Abstract
A total of 289 fish were analysed in this study, with Caradina nilotica (44%) being the dominant food item in their diet, while tilapia (8%) contributed the least. Haplochromines, unidentified fish prey and juvenile Nile perch also were observed. An ontogenic shift was observed, with C. nilotica contributing highest (61.1%) of the diet of fingerlings, but decreasing to 21% in the diet of adults. Nile perch contributed 35.7% of the diet in the adults and 8.1% in the fingerlings. This study indicates Nile perch is a predatory fish, feeding mainly on C. nilotica, haplochromines, tilapia, Nile perch and other fish materials.
- Subjects
KENYA; FISH feeds; NILE perch; PREDATORS of fishes; LAKES; TILAPIA; PHYSIOLOGY
- Publication
Lakes & Reservoirs: Research & Management, 2017, Vol 22, Issue 1, p43
- ISSN
1320-5331
- Publication type
Article
- DOI
10.1111/lre.12163