A purse seiner near a bamboo FAD (Fish Aggregating Device). The Japanese purse seiner "Fukuichi Maru 85" and Greenpeace activists on inflatable hold a banner reading "No return from overfishing". Around 10% of the catch generated by purse seine FAD fisheries is unwanted bycatch and includes endangered species of sharks and turtles. The catch of large amounts of juvenile bigeye and yellowfin tunas in these fisheries is now threatening the survival of these commercially valuable species. Greenpeace is calling for a total ban on the use of fish aggregation devices in purse seining and the establishment of a global network of marine reserves.