Stephenson, P.C., Wells, S., King, J.A. Fisheries Research Report, Department of Fisheries of Western Australia Fisheries Research Division, Western Australian Fisheries and Marine Research Laboratories, PO Box 20, North Beach, Western Australia 6920 +61 8 9203 0111 [email protected] A semi-flexible exclusion grid with a bar spacing of 15.5 cm reduced dolphin bycatch in the Pilbara trawl fishery by close to 50% and reduced the bycatch of sea turtles, large sharks and rays. However, the fate of the dolphins that encountered the grid and escaped is unknown.