james thanx 4 ur questions as to wether the fishing industry has controls in place toi deal with bycatch.
yes they do.
1 . turtle excluder devices; grids that have bars spaced 120 mm apart set in a 55 degree angle before the codend [ bag for hauling seafood on board] which allows turtles, marine life larger than the bar spacing, bycatch such as crab and bugs [ this is from dpi stuies] to escape the trawl thru a large opening in the net.
2.bycatch reduction devices. openings in the net that are specifically designed to allow fish to exit the trawl by swimming out of these opening. there are a myriad of these devices including the use of square mesh codends that facilitate the egress of small fish.
3 effort reduction. everytime a fishing boat is sold [qld east coast] with a license its allowable effort is reduced by 5%, if a license is sold thelicense loses 10 % of its allowable effort. there is a finite allowable effort so effort is continually being reduced.
4.effort reduction thru defined seasons. prawn fisheries are limited to seasonal effort. fishing is only allowed during a specified period which has been defined with import from all user groups. a vast majority of this work has come proactively from the fishing community.
thanx again james for ur open questions.
gorilla there is a diver whiting trawl industry licensed to work on the east coast. no not the prawn trawl industry but a specific legislated separate license. i would imagine this product comes from there.
dug. i saw diver whiting as the main component of the fish that was on the beach of which there is nosize restriction and mate they looked like adult fish to me. again wait for the epa toxicologist report b4 making ur mind up. as yet there is no empirical evidence that this fish came from trawlers and as many people seem to be pointing out there are many cases of 'fish kills' with no [not even circumstancial] evidence of trawler involvement