In fishing,incidental catch refers to the portion of the catch that was unintentionally caught but retained. It can be distinguished fromdiscards, which are the unintended catch that is caught and then returned to the sea, andbycatch, which includes all non-targeted species caught alongside the targeted species.
Bycatch = Incidental catch +Discarded catch
The operational definitions used by theFAO for incidental catch and other related catches are as follows:[1]