Fishery and bionomics of tunas at Mangalore

Abstract

Karnataka waters, on the upper part of S.W. coast of India produce an average total of 786 tonnes of tuna annually (1972-'81) forming 0.7% of the state's marine fish catch and 5 % of the total tuna catch of India. Of late, the production rate of this resource in the state had gone upto an average of 1,729 tonnes per year (1979-81). This rapid progress was achieved by the introduction of modern fishing techniques such as purse seining, deployment of mechanised crafts for drift gill netting and synthetic materials for gears.