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Journal of the Marine Biological Association of India
Volume 51 Issue 1
Trophic level of fishes occurring along the Indian coast
E. Vivekanandan, S. Gomathy, P. Thirumilu, M. M. Meiyappan and S. K. Balakumar
Abstract
Data on the trophic level (TrL) of 707 species of exploited finfishes, crustaceans and cephalopods along the Indian coast were collected from different sources. The TrL ranges from 2.0 to 4.7 and
the mean TrL is 3.5. The mean TrL of pelagic finfishes is 3.68, and the TrL decreased towards demersal habitat (3.44). A strong positive correlation exists between maximum body length of finfishes and TrL. The mean TrL of exploitation was 3.25. The complexities of assigning TrL values are discussed.
the mean TrL is 3.5. The mean TrL of pelagic finfishes is 3.68, and the TrL decreased towards demersal habitat (3.44). A strong positive correlation exists between maximum body length of finfishes and TrL. The mean TrL of exploitation was 3.25. The complexities of assigning TrL values are discussed.
Keywords
Trophic level, fisheries, body size, habitat, Indian seas
Date : 01-09-2009
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