B.P., Ngatunga and E.H., Allison (1996) Food consumption/biomass ratios of the pelagic fish community of Lake Malawi/Niassa. Naga The ICLARM Quarterly, Vol.19 (4). pp. 36-42. ISSN 0116-290X
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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: | Articles |
|---|---|
| Keywords: | Pelagic Fisheries, Fish Species, Species, Models, Pelagics, Fish, Fishing Methods, Population, Value, Larvae, Trawls, Ecosystem |
| Subjects: | Right to Resources |
| Depositing User: | Users 4 not found. |
| Date Deposited: | 25 May 2022 06:16 |
| Last Modified: | 25 May 2022 06:16 |
| URI: | http://icsfarchives.net/id/eprint/13312 |
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