Now, Dr. Aravind is lead coordinator for shrimp and cephalopod (squid, octopus, and cuttlefish) fisheries that are working to improve their sustainability through FIPs. Fisheries, especially ones with multiple species, can have a range of challenges on the path to sustainability, but for Dr. Aravind’s projects, “the most relevant threat that these fisheries face is that of trawl fishery, which always poses the risk of bycatch.”
Trawling involves pulling a net along the ocean floor to catch low-lying species. The practice often inadvertently catches wildlife that fishers don’t want, like turtles, juvenile fish, sharks, and crabs, or starfish. When unintended catches end up in trawl nets, they can be injured or killed— a particularly common problem in the tropical shrimp
fishing industry.
But Dr. Aravind and her collaborators have a solution to make bycatch a problem of the past for Kerala. “As first steps, trials have been done on board commercial trawlers using square mesh cod-ends,” Dr. Aravind said. “Square mesh cod-ends are bycatch reduction-style nets that have been found effective in trials conducted in other states in India. Compared to the presently used diamond mesh cod-ends, the square mesh has a much cleaner catch.”