The depth distribution of the cat-fishes, Tachysurus thalassinus (Rupp.) And T tenuispinis (Day), In the north-western Bay of Bengal.

Sekharan, K V (1974) The depth distribution of the cat-fishes, Tachysurus thalassinus (Rupp.) And T tenuispinis (Day), In the north-western Bay of Bengal. Indian Journal of Fisheries, 20 (1). pp. 193-202.

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Abstract

During 1964-67, a study was made of the depth distribution of- the catfishes, Tachysurus thalassinus (RuPP-) and T. tenuispinis (Day) in the grounds up to 100 m deep in the north-western Bay of Bengal, based on the catches of exploratory trawlers. On an annual average, both species have peak abundance in two depth-ranges, the first being 30-39 or 40-49 m and the second, 60-69 or 70-79 m. Both species have high abundance in shallow grounds < 50 m deep) in April-June and October-December and in deeper grounds in; July-September. In September-December the sizes available, of both species, increased with increase in depth. T. thalassinus of small size was recorded only from the 17»40', 19°10' and 19°40' zones. No inter-zonal difference was found in the size of the other speeies.

Item Type: Article
Uncontrolled Keywords: cat-fishes; Tachysurus thalassinus; T. tenuispinis; Bay of Bengal
Subjects: Demersal Fishes > Cat Fishes
Divisions: CMFRI-Cochin > Marine Capture > Demersal Fisheries
Subject Areas > CMFRI Brochures > CMFRI-Cochin > Marine Capture > Demersal Fisheries
Depositing User: Dr. V Mohan
Date Deposited: 23 Jun 2010 10:10
Last Modified: 09 Sep 2015 15:11
URI: http://eprints.cmfri.org.in/id/eprint/1233

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