<p>Fisheries bycatch is currently the greatest source of human-caused deaths of marine mammals worldwide. Devon based company, Fishtek Marine has created technology which can reduce the bycatch of blue sharks and pelagic rays by as much as 91 per cent. This is just the most recent of many scientific breakthroughs from the team who, in a world-first, also discovered a low-impact method for scallop fishing.</p>