The highest rates of incidental catch of non-target species is associated with shrimp trawling.
A permit that allows this "incidental" catch is up for renewal.
Japanese salmon drift-netters fishing off Alaska were therefore allowed this figure as an annual quota as incidental catch.
But now these incidental catches have come to present a major danger to cetacean populations.
Because of its coastal habitat, incidental catches in gill-nets are widespread but the effects on the population are unknown.
Unfortunately, there are probably some incidental catches of dolphins and other marine life every day.
Sometimes an underappreciated variety is introduced because it was part of an "incidental catch" brought in with a major harvest.
There is substantial incidental catches in fishing operations.
Until that time, shark was generally an incidental catch rather than a targeted species.
There are the vessels that remain within the squid zone, or nearly so, and take some - we don't know how many - salmon as incidental catch.