Yet the last time I watched an industrial fishing net unload they dumped about a ton of bycatch to the sea lions. They are pretty efficient at killing unwanted species.

https://www.fisheries.noaa.gov/insight/understanding-bycatch...?

>Unwanted catch is an issue both ecologically and economically. Animals that are discarded often die and cannot reproduce, impacting marine ecosystems. Bycatch can slow the rebuilding of overfished stocks, and place protected species such as whales and sea turtles at further risk. Bycatch of species like corals and sponges can cause damage to protected corals and to important fish habitat.