Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun by-catch

1 sense of by-catch

Sense 1
by-catch, bycatch -- (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")
       => marine animal, marine creature, sea animal, sea creature -- (any of numerous animals inhabiting the sea including e.g. fishes and molluscs and many mammals)