Fishery of lizardfishes off Veraval with stock assessment of Saurida tumbil (Bloch)

Manojkumar, P P and Sivakami, S (2005) Fishery of lizardfishes off Veraval with stock assessment of Saurida tumbil (Bloch). Indian Journal of Fisheries, 52 (3). pp. 323-329.

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Abstract

The lizardfishes form an important demersal fishery resource off Veraval with average annual estimated landings of 455 t, forming 0.74% of the total trawl production. Two species viz. Saurida tumbil and S. undosquamis contributed to the fishery of which, S. tumbil formed 85% of the lizardfish landings. Asymptotic length (L∞) and growth coefficient (K) estimated for S. tumbil are 577 mm and 0.70 y-1 respectively and the size at first capture (tc) is 202 mm. The estimated mortality rates Z, F and M are 3.46 y-1, 2.30 y-1 and 1.16 y-1 respectively. The exploitation ratio (E) and Exploitation rate (U) were estimated separately as 0.66 and 0.64 respectively. The yield per recruit study shows that the species has reached close to the optimum level of exploitation in the present fishing ground. The annual estimated stock is 587 t.

Item Type:Article
Uncontrolled Keywords:Lizard fishes; veraval; saurida tumbil
Subjects:Demersal Fishes > Lizard Fishes
Marine Fisheries > Population Dynamics
Divisions:CMFRI-Cochin > Marine Capture > Demersal Fisheries
ID Code:206
Deposited By:Edwin Joseph
Deposited On:17 Mar 2010 17:19
Last Modified:19 Mar 2010 17:01

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