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The purse seine is a preferred technique for capturing fish species which school, or aggregate, close to the surface: sardines, mackerel, anchovies, herring, and certain species of tuna (schooling); and salmon soon before they swim up rivers and streams to spawn (aggregation). Boats equipped with purse seines are called purse seiners.
A Colville Tribe biologist reports that during these two years the tribe harvested 3,163 hatchery Chinook while releasing 2,346 wild Chinook with only 1.4% direct or immediate mortality using purse seines, [35] whereas the tangle net was far less productive but had an approximate 12.5% mortality. Researchers commented that the use of recovery ...
The purse seine itself is usually black in color, with colorful "corks" (floats of some sort) strung along the cork line, and lead weights strung along the lead line. The size and attributes of purse seines are regulated by the Alaska Department of Fish and Game, which oversees the industry. A typical length may be 1,200 feet (370 m) long, by ...
Purse seine: Schooling fish: The purse seine, widely used by commercial fishermen, is an evolution of the surround net, which in turn is an evolution of the seine net. A large net is used to surround fish, typically an entire fish school, on all sides. The bottom of the net is then closed by pulling a line arranged like a drawstring used to ...
Purse seine boats encircling a school of menhaden Commercial herring catch. Traditional commercial fisheries were directed towards high value ocean predators such as cod, rockfish and tuna, rather than forage fish. As technologies developed, fisheries became so effective at locating and catching predator fish that many of the stocks collapsed.
The purse-seine fishery primarily operates in the Pacific Ocean, in the historic tuna grounds of the San Diego tuna fleet in the eastern Pacific, and in the islands of the western Pacific, where many U.S. tuna canneries relocated in the 1980s, but significant purse-seine catches are also made in the Indian Ocean and in the tropical Atlantic ...
After menhaden had been identified as a valuable alternative to whale oil in the 1870s, the menhaden fishery on the Chesapeake was worked by predominantly African-American crews on open boats hauling purse seines. The men employed sea chanties to help synchronize the hauling of the nets. These chanties pulled from West African, blues, and ...
The Atlantic horse mackerel is fished for commercially using trawls, longlines, purse seines (using artificial light), traps and on line gear. In 1999 the Food and Agriculture Organization stated that the total catch reported to it was 322 207 tonnes with the largest catches being in the Netherlands and in Ireland. [4]