Results of the trawling survey by an institutional Boat Cadalmin ii in the Palk bay and Gulf of Mannar, Mandapam, during 1977-80

Pillai, N G K (1985) Results of the trawling survey by an institutional Boat Cadalmin ii in the Palk bay and Gulf of Mannar, Mandapam, during 1977-80. Indian Journal of Fisheries, 32 (1). pp. 123-132.

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Abstract

During the course of trawling survey conducted in 1977-80 R.V. CADALMIN II (13.3 m, 100 BHP) landed from the Palk Bay and Gulf of Mannar a total ot 46,366 kg of 'all fisli" at an annual average catch rate of 57.5 kg as a result of a total fishing effort of 806.3 h. Silverbellies formed 80% of the catch. The sub-areas 9-78|lF, 9-79|2B, 2C, 3B, 3C, 3D, 4A, 4B and 4C were found to be most productive. April-June in the Palk Bay and October- December in the Gulf of Mannar were the best seasons for trawling. Over 70% of the catch came from 4-10 m depth. When compared with earlier studies, a change was noticed in the composition of fish species in this region. The estimated potential yield for all the eight sub-areas surveyed in the Palk Bay and seven sub-areas in the Gulf of Mannar was 874.6 t and 473.7 t, respectively.

Item Type: Article
Uncontrolled Keywords: Cadalmin; Palk bay; Gulf of Mannar; Mandapam; trawling survey
Subjects: Marine Fisheries > Fisheries Survey
Divisions: CMFRI-Cochin > Marine Capture > Pelagic Fisheries
Subject Areas > CMFRI Brochures > CMFRI-Cochin > Marine Capture > Pelagic Fisheries
Depositing User: Dr. V Mohan
Date Deposited: 19 Apr 2010 06:48
Last Modified: 09 Sep 2015 15:06
URI: http://eprints.cmfri.org.in/id/eprint/409

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