Data/hora: 09/06/2024 02:18:55

Provedor de dados: 	20	
País: 	Belgium	
Título: 	Some observations on the African catfish Clarias gariepinus (Burchell) in the Sondu-Miriu River of Lake Victoria, Kenya	
Autores: 	Lung'ayia, H.B.O.	
Data: 	2006-03-10	
Ano: 	1994	
Palavras-chave: 	Clarias gariepinus; Migrations; Population structure; Size distribution; Spawning; Population structure; Spawning; Freshwater catfish; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_14490; Http://aims.fao.org/aos/agrovoc/c_3103.	
Resumo: 	The African catfish Clarias gariepinus (Burchell), has an intermitent     occurrence in the Sondu-Miriu river draining into lake Victoria.     Observations were made to get basic information on size composition,     migration, spawning period and food of this species in the river. A     total of 376 fish samples of fish ranging from 11.9 to 101.1 cm in     total length were examined from January to December 1989. A migration     of the fish between the lake and the river waters is indicated. Small     sized and immature fish were available in the river throughout the     year but their numbers became minimal in the dry season. Large and     mature specimens were caught mainly during the high water mark and     rainy seasons of April-June and September-October, suggesting an     upstream spawning migration. First maturity for both sexes was     observed at 21.0 cm total length. The overall female to male ratio was     1:2. The food was mainly composed of fish, detritus, plants,     crustaceans and insects. The study is a contribution to the     understanding of the biology of C. gariepinus in the lake-river     ecosystem.	
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. 105-114

9290640789

http://hdl.handle.net/1834/1159	
Editor: 	ICIPE SCIENCE	
Formato: 	390061 bytes

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