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International Journal of Fisheries and Aquatic Studies
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(ICV-Poland) Impact Value: 76.37, Impact Factor: RJIF 5.69
E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2015, Vol. 2, Issue 3, Part C

Length –Weight relationships for some rock pool fishes off Visakhapatnam, East Coast of India


Author(s): N. Muddula Krishna, V. Govindarao and D. Venu

Abstract: The rock-out crops off Visakhapatnam coastal area are rich productive that supports important fishery activities, however, the increase in human population’s exhibit heavy pressure on their resources. This issue had raised the importance of sustainable management tools for this rock pool ecosystem. Length Weight Relationships (LWRs) are important fish stock assessment tools were investigated in the different rock pool areas off Visakhapatnam coastal waters. A total of ten (10) fish species were selected for this study that belong to seven families Scorpaenidae, Gerridae, Holocentridae, Chaetodontidae, Gobidae, Blenniidae and Acanthuridae. The highest species number (n= 3) were recorded for Scorpaenidae family. All length-weight regressions were significant with a coefficient of determination (r2) varying from 0.828 (Parascorpaena picta) to 0.988 (Gerres filamentosa). Growth coefficient, b of the LWR ranged from 2.084 (Gobiodon rivulatus) to 3.250 (Istiblennius lineatus). In the present study out of 10 species, n= 3 are exhibited negative allometric growth pattern, n =5 are positive allometric growth and n =2 had isometric growth. We can conclude that our results are useful references for Visakhapatnam coastal waters management and particularly rock pool fishes.

Pages: 139-140  |  1164 Views  6 Downloads

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How to cite this article:
N. Muddula Krishna, V. Govindarao, D. Venu. Length –Weight relationships for some rock pool fishes off Visakhapatnam, East Coast of India. Int J Fish Aquat Stud 2015;2(3):139-140.
International Journal of Fisheries and Aquatic Studies