Fisheries for Chilean jack mackerel have been MSC-certified since 2019. Because jack mackerel swim in large schools, fisheries can catch them relatively selectively without significant bycatch. Chilean jack mackerel is currently the only mackerel species with MSC certification and therefore provides a good alternative to Atlantic mackerel from the Northeast Atlantic. This stock has been under pressure for a long time due to poor management. MSC-certified Chilean jack mackerel is caught using pelagic trawls and purse seines.