What does purse seine fishing mean?

noun. a large seine, for use generally by two boats, that is drawn around a school of fish and then closed at the bottom by means of a line passing through rings attached along the lower edge of the net. a technique of fishing that utilizes a purse seine to capture large schools of fish, especially tuna.Click to see full answer. Besides, is purse seine fishing sustainable?Purse-seine fishing in open water is generally considered to be an efficient form of fishing. It has no contact with the seabed and can have low levels of bycatch (accidental catch of unwanted species). MSC certified fisheries using purse seines must ensure that they leave enough fish in the ocean to reproduce.Beside above, why is purse seine fishing bad? These can be caught relatively ‘cleanly’ by purse-seining. But where purse-seining is a bad idea is when targeting fish that a) also involves the bycatch of non-target species, and b) simply can’t take the fishing pressure on their populations. And that’s where we get to tuna. Keeping this in consideration, how does purse seine fishing work? A purse seine is a large wall of netting deployed around an entire area or school of fish. The seine has floats along the top line with a lead line threaded through rings along the bottom. Once a school of fish is located, a skiff encircles the school with the net.What is a seine net used for?Beach seine nets are used to catch fish that inhabit near shore beaches, marshes, lakes and streams and are common tools for organizations like Collier Sea Grant and FWC.