by-catch

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by-catch

(bī′kăch′, -kĕch′)
n.
The portion of a fishing catch that is discarded as unwanted or commercially unusable.

by-catch

n
(Fishing) unwanted fish and other sea animals caught in a fishing net along with the desired kind of fish
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.by-catch - 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