Please see this report documenting shortcomings of US management of bycatch in US fisheries:
https://www.nationalfisherman.com/agency-critics-slam-federal-oversight…
Featured Bycatch Species
The main cause of the decline of loggerhead turtles, and the current primary threat to global populations is bycatch in longlines, gillnets, trawls, traps and pots, and dredges.