Small-mesh bottom trawls used to target longfin squid can incidentally catch marine mammals and large pelagics. Finfish such as butterfish, hake, herring, flukes, dogfish, and mackerel are known to be caught in the US Atlantic longfin squid fishery – with butterfish being the most commonly caught bycatch species. To address butterfish bycatch, fishery managers have implemented hard caps on the amount of butterfish that can be incidentally caught in the fishery. The longfin squid fishery has also experienced interactions with protected and threatened and endangered species such as small cetaceans and leatherback and loggerhead sea turtles. To prevent bycatch, fishers use measures such as gear restrictions. Additionally, educational outreach initiatives instruct fishers on actions to take in the event of marine mammal interactions. Fishers communicate in real-time to report marine mammal spottings and hotspots of marine mammal activity.