Commercial tuna fishing no longer uses nets, but mostly switched to using lines, due to public outcry over the accidental netting and subsequent killing of what marine animals?
Tuna the Western and Central Pacific Fisheries Commission at its eighth meeting in March 2012. Dolphins swim beside several tuna species. These include yellowfin tuna in the eastern Pacific Ocean, but not albacore. Tuna schools are believed to associate themselves with dolphins for protection against sharks, which are tuna predators. Commercial fishing vessels used to exploit this association by searching for dolphin pods. Vessels would encircle the pod with nets to catch the tuna beneath, however the nets were prone to entangling dolphins, injuring or killing them. Public outcry and new government regulations, which are now monitored by NOAA have led
Commercial fishing boat's catch. A 2009 paper in "Science" estimates, for the first time, the total world fish biomass as somewhere between 0.8 and 2.0 billion tonnes. Commercial fishing uses many different methods to effectively catch a large variety of species including the use of pole and line, trolling with multiple lines, trawling with large nets, and traps or pots. Sustainability of fisheries is improved by using specific equipment that eliminates or minimizes catching non-targeted species. Fishing methods vary according to the region, the species being fished for, and the technology available to the fishermen. A commercial fishing enterprise may vary from