Data/hora: 07/06/2024 05:43:56

Provedor de dados: | Ocean Docs: e-repository of  publications
País: | Belgium
Título: | A comparative study on the feeding habits of Oreochromis niloticus (Linnaeus) in Nyanza Gulf Lake Victoria and sewage fish ponds
Autores: | Getabu, A.
Data: | 2006-03-10
Ano: | 1994
Palavras-chave: | Oreochromis niloticus; Feeding behaviour; Fish ponds; Food organisms; Sewage; Feeding behaviour; Fish ponds; Sewage; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_2929; Http://aims.fao.org/aos/agrovoc/c_7007.
Resumo: | Gut content analysis of Oreochromis niloticus from the Nyanza Gulf,     Lake Victoria showed that the bulk of the food items ingested     constituted bottom deposits and blue green algae. Among the live food     items ingested, blue green algae (Cyanophyceae) constituted 53.6%, the     diatoms (Bacillariophyaceae) 19.7%, aquatic invertebrates (mainly     Copepoda, Cladocera, and Rotifera) 12.9%, desmids (Desmidaceae) 7.7%     and lastly the green algae (Chlorophyceae) 6.2%. The most preferred     food items were: Spirulina laxisma and Nitzschia accicularis. The     least preferred food items were: Lyngbya circumcreta, Microcystis     aeruginosa and Pediastrum simplex. The quantity of food eaten by O.     niloticus to satiation ranged from 0.016-4.5% body weight. The high     growth performance index of the fish is attributed to the food on     which it feeds on. The results obtained from the Gulf are compared     with those of ealier work done on the food of the species in sewage     fish ponds which discharge their effluent into the lake.
Tipo: | Proceedings Paper
Idioma: | Inglês

Identificador:

Okemwa, E.; Wakwabi, E.O.; Getabu, A.  (Ed.) Proceedings of the Second EEC Regional Seminar on Recent Trends of Research on Lake Victoria Fisheries, NAIROBI  : ICIPE SCIENCE, p. 93-103

9290640789

http://hdl.handle.net/1834/1160

Editor: | ICIPE SCIENCE

Formato:

399698 bytes

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