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Net haulers are usually used to set and haul driftnets, with a drifter capstan on the forepart of the vessel. In developing countries most nets are hauled by hand. The mesh size of the gillnets is very effective at selecting or regulating the size of fish caught. The drift net has a low fuel/fish energy consumption compared to other fishing gear.
The bycatch of seabirds entangled in nets or hooked on fishing lines has had a big impact on seabird numbers; for example, an estimated 100,000 albatrosses are hooked and drown each year on tuna lines set out by long-line fisheries.
A sea turtle entangled in a ghost net. Ghost nets are fishing nets that have been abandoned, lost, or otherwise discarded in the ocean, lakes, and rivers. [1] These nets, often nearly invisible in the dim light, can be left tangled on a rocky reef or drifting in the open sea.
Gillnet – fishing nets constructed so that fish are entangled or enmeshed, usually in the gills, by the netting. According to their design, ballasting and buoyancy, these nets can be used to fish on the surface, in midwater or on the bottom. The mesh size of the net determines the size of fish caught, since smaller fish can swim through the mesh.
A Norwegian fisherman caught a US submarine in his nets this week. The USS Virginia's propellers got tangled in the nets, reports say, dragging them out to sea.
Fishing nets that have been left or lost in the ocean by fishermen are called ghost nets, and can entangle fish, dolphins, sea turtles, sharks, dugongs, crocodiles, seabirds, crabs, and other creatures. Acting as designed, these nets restrict movement, causing starvation, laceration and infection, and—in those that need to return to the ...
Seabirds are turning up coated in oil along Pacific Northwest coastlines, and wildlife officials are trying to figure out why. An oiled common murre was first discovered May 19, the Washington ...
Craveri's murrelet (Synthliboramphus craveri) is a small seabird which breeds on offshore islands in both the Pacific Ocean and the Gulf of California off the Baja peninsula of Mexico. It also wanders fairly regularly as far as central California in the US, primarily during post-breeding dispersal.