Food consumption/biomass ratios of the pelagic fish community of Lake Malawi/Niassa
Data(s) |
1996
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Resumo |
An empirical model relating food requirements to morphometric indices of metabolic rate was used to calculate consumption/biomass ratios (Q/B) for 16 species of fish that make the pelagic fish community in Lake Malawi/Niassa. The Q/B/year varied from 3.31 to 9.82, with the large catfish (Dinotopterus nyasensis) having the lowest and a small cyprinid (Engraulicypris sardella) having the highest Q/B ratio. Direct estimates of Q/B for four of the most abundant species, based on analysis of diel feeding patterns, ranged from 4.20 to 24.70; the extreme values in this range representing replicate studies on the same species, the predatory cichlid Rhamphochromis longiceps. Previous studies that indicated exceptionally low Q/B ratios (1.0) in pelagic cichlids from Lake Malawi are not supported by this more recent work. |
Formato |
application/pdf |
Identificador |
http://aquaticcommons.org/9385/1/na_2123.pdf Ngatunga, B.P. and Allison, E.H. (1996) Food consumption/biomass ratios of the pelagic fish community of Lake Malawi/Niassa. Naga, the ICLARM Quarterly, 19(4), pp. 36-42. |
Idioma(s) |
en |
Relação |
http://aquaticcommons.org/9385/ http://www.worldfishcenter.org/Naga/na_2123.pdf |
Palavras-Chave | #Ecology #Fisheries |
Tipo |
Article NonPeerReviewed |