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.
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.
|Item Type: ||Article|
|Title: ||Food consumption/biomass ratios of the pelagic fish community of Lake Malawi/Niassa|
|Personal Creator/Author: |
|Journal or Publication Title: ||Naga, the ICLARM Quarterly|
|Page Range: ||pp. 36-42|
|Issuing Agency: ||WorldFish Center|
|Uncontrolled Keywords: ||Food consumption; Biomass; Pelagic fisheries; Mathematical models; Regression analysis; Malawi Lake; Dinotopterus nyasensis; Engraulicypris sardella; Rhamphochromis longiceps|
|Item ID: ||9385|
|Depositing User: ||Mr William Ko|
|Date Deposited: ||19 Oct 2012 10:45|
|Last Modified: ||19 Oct 2012 10:45|
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