by catch
/ˈbaɪˌkætʃ/
noun
- Fish or other sea creatures that are caught unintentionally while trying to catch a different type of fish.
- New regulations aim to reduce the amount of by-catch in shrimp trawling.
- Many dolphins die each year as by-catch in tuna fishing operations.
- The fishing net was full of by-catch, including young tuna and sea turtles.