bycatch
noun [ C or U ] environment specialized uk/ˈbaɪ.kætʃ/ us/ˈbaɪ.kætʃ/
混获，副渔获物
fish or other sea creatures that are caught unintentionally by people who are trying to catch other types of fish
Bycatch can be kept and landed as part of the commercial catch or discarded. 混获物可以留下并作为商业渔获的一部分，或者可丢弃。