Deshmukh, V D (1990) Population dynamics and stock assessment of hermaphrodite prawn Exhippolysmata ensirostris. Kemp, at Nawabunder, Gujarat. Journal of the Marine Biological Association of India, 32 (1&2). pp. 187-192.
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Abstract
Exhippolysmata ensirostris fonned 27% of the non-penaeid prawn landings at Nawabunder, a major dol net centre in Saurashtra. The peak landing period is from October-December with an annual landing of 302,2 t during the period 1983-86. The growth parameters are Lα 105.84 mm, t, = —0.09 month and K = 0.193 on monthly basis. The total mortality coefficient, ‘Z' for the three year period varied from 8.39 to 11.35. The natural mortality] coefficient, is 3.2. The MSY, calculated from the yield per recruit analysis is 334.6 t which is close to the present yield and the exploitation rate is 0.69. In spite of hiigh exploitation rate, the fishery has sustained as the exploited stock consists of large size adults with size at capture (Ic = 73.0 mm) which is much higher than the size at 50% maturity (Lt»i 50 = 58 mm).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | hermaphrodite prawn; Exhippolysmata ensirostris; Nawabunder; Gujarat |
| Subjects: | Marine Fisheries > Stock Assessment Crustacean Fisheries > Prawn and Prawn fisheries Marine Fisheries > Population Dynamics |
| Divisions: | CMFRI-Kochi > Marine Capture > Crustacean Fisheries Division Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Crustacean Fisheries Division CMFRI-Kochi > Marine Capture > Crustacean Fisheries Division Subject Area > CMFRI-Kochi > Marine Capture > Crustacean Fisheries Division |
| Depositing User: | Mr. Arun Surendran |
| Date Deposited: | 19 Jun 2010 10:31 |
| Last Modified: | 09 Sep 2015 15:10 |
| URI: | http://eprints.cmfri.org.in/id/eprint/1125 |
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