Not AvailableWilh the introduction of mechanized bottom trawling from the late fifties, the exploitation of demersal frnfishes atuined a 2.7- fold increase during late eighties (0.52 million tonnes). But the proportion of production went down from about 32% of the total in 1981 to about 22% in late eighties. The resources which were exploited to the optimum in the 0-50 m dq>th zone during 1985-89 were sdaenids, silver bellies, elasmobranchs, pink perch, lizard fishes, goat fishes, threadflns, eels, etc. As a result of intensive coastal trawling and introduction of gears such as purse seines, resources like catfishes, the whitefish, dara, karkara, koth, ghol, warn and flaiheads declined in production. This was chiefly due to recruitmen...