Problems of fishing

Question 1

what is ghost fishing?

Answer 1

abandoned fishing nets or equipment, result in wasted fish

Question 2

what is the extent of ghost fishing?

Answer 2

few incidents reported or studied (dayton et al. 1995)
studies of seabed on georges bank found 341 actively fishing ghost nets (Brothers 1992)
7000km drift nets lost/year in a north Pacific fishery - equal to 25% of total length of netting set on a daily basis

Question 3

how was bycatch reduced in usa in tuna fishing?

Answer 3

USA imposed embargoes on tuna fisheries that didnt take steps to release dolphins trapped in seine nets (BACK DOWN TECHNIQUES REDUCED DOLPHIN BYCATCH BY 99% SINCE 1986)
but not safe for sharks and turtles still

Question 4

what is a turtle exclusion device

Answer 4

TED - a shrimb trawling net that allows turtles and large fish to escape, when turtles caught are directed to an opening on top of net through grid