Sharks among the most endangered groups of animals from bycatch. A new study examined the impacts of retention bans on shark populations. It concluded that in some cases they can be beneficial, but avoiding bycatch in the first place is of paramount importance such as making modifications to fishing gear and practices.
Article: https://onlinelibrary.wiley.com/doi/10.1111/faf.12892
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.