There are several MSC-certifiedMSC Certified:
Fisheries that comply with the Marine Stewardship Council assessment criteria and are certified. Fish products with the blue MSC label are caught by sustainable fisheries. pilchard fisheries along the coast of Brittany (France), Cornwall (England) and the Bay of Biscay. These fisheries use [purse-seines], midwaterMidwater otter trawls:
A fishing technique whereby conical nets are dragged through the water column and are kept open by large square 'otter planks'. otter trawls and gillnetsGillnets:
A fishing technique whereby passing fish get caught in the meshes with their gills. The net stands vertically on the bottom or hangs on buoys in the water column. The by-catch of species such as porpoises and dolphins is a problem related to gillnets..