For half a century, industrial tuna fishing vessels have borne scrutiny for catching animals they haven’t meant to: “bycatch,” in fisheries lingo. Purse seiner vessels, which provide most of the world’s canned tuna, have drawn conservationists’ particular ire for their indiscriminate ways. They operate by dropping a massive cylindrical net and cinching it together at … Continue reading ‘Manta grid’ provides a ray of hope against industrial bycatch threat