Summary
A warp cable modification (plastic cone attached to each warp cable) reduced seabird bycatch in the high-sea Argentine hake (Merluccius hubbsi) trawl fishery. The two most abundantly captured seabirds prior to the attachment of plastic cones were the kelp gull (Larus dominicanus) and the black-browed albatross (Thalassarche melanophrys).