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Title Target specific 51.0m long wing semi pelagic trawl for off-bottom fishing in Indian EEZ
 
Names Vijayan, V.
Manoharadoss, R.S.
Sherine, S.C.
Date Issued 2003 (iso8601)
Abstract Target specific 51.0 m long wing semi-pelagic trawl developed for optimum exploitation
of off-bottom resources in the Indian EEZ was tested onboard FORV Sagar Sampada in
combination with 1.5 t 'V form otter board and 50.0 m double bridles in the depth range
of 43.0 to 68.0 m employing three different speeds of tow. The area of experimentation
extended between 20° 39' to 21° 37' N Latitude and 69° 11' to 70° 16' E Longitude. Design
details of the trawl along with rigging particulars of the gear system are described. A total
yield of 3.65 t was realized from 24 hauls made and the average and maximum catch per
unit effort amounted to 123.6 and 151.0 kg respectively. 4.0 knot trawling speed was assessed
to be the optimum for this gear system. Semipelagic species consisting mainly of Tachysurus
sp., Sphyraena sp., Trichiurus sp., Priacanthus hamrur, Megalaspia cordyla, Protonibea diacanthus,
Nemipterus japonicus, Polynemus indicus, Saurida tumbil, Scomberomorus sp., Chirocentrus sp.,
Chorinemus tol, Pseudocaranx dentex, squid and cuttlefish and miscellaneous off-bottom fish
constituted over 85% of the total catch, establishing the target specificity of the gear system
in landing semi-pelagic fishery resources.
Genre Article
Identifier Fish Technol. 40(1): 24-27