by-catch
- n unwanted marine creatures that are caught in the nets while fishing for another species
thousands of dolphins and porpoises and whales are killed as part of the by-catch each year
- Indeed, so many snappers are being scooped up as by-catch that the productivity of the fishery has been compromised.
- A problem with this is "by-catch," undersize fish or unwanted species that go back over the side, dead.
- During the day, when the foreign-owned net boats arrive to offload tuna onto the freighters, locals motor out in their fiberglass boats to trade for the by-catch.