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Bottom trawling can be contrasted with midwater trawling (also known as pelagic trawling), where a net is towed higher in the water column. Midwater trawling catches pelagic fish such as anchovies and mackerel, whereas bottom trawling targets both bottom-living fish and semi-pelagic species such as cod, squid, shrimp, and rockfish.
Wild fish catch by gear type, World. Among the major fishing techniques bottom trawling is a destructive one. Fishing techniques are methods for catching fish. The term may also be applied to methods for catching other aquatic animals such as molluscs (shellfish, squid, octopus) and edible marine invertebrates.
Bottom trawling is towing the trawl along (benthic trawling) or close to (demersal trawling) the sea floor. Bottom trawling is an industrial fishing method in which a large net with heavy weights is dragged across the seafloor, scooping up everything in its path. Bottom trawling can be disadvantageous because it can stir up significant amounts ...
Examples are cod, flounder and snapper. Compared to pelagic fish, demersal fish contain little oil. See also bottom feeder. Demersal trawling – trawling on or near the bottom of a sea or lake. See also bottom trawling. Depletion – reducing the abundance of a fish stock through fishing. Delisted – a species which is no longer listed under ...
A fishing trawler is a commercial fishing vessel designed to operate fishing trawls. Trawling is a method of fishing that involves actively dragging or pulling a trawl through the water behind one or more trawlers. Trawls are fishing nets that are pulled along the bottom of the sea or in midwater at a specified depth. A trawler may also operate ...
A purse seiner is a fishing vessel which uses a traditional method of catching tuna and other school fish species. A large net is set in a circle around a school of fish while on the surface. The net is then pursed, closing the bottom of the net, then pulling up the net until the fish are caught alongside the vessel.
The method can be used both with handlining and rod fishing, and can be done both from boats and from the land. The weight can also be used to cast the line to a further, more appropriate distance at deeper water away from the shoreline. Specialized fishing rods called bottom rods or "donkas" are also commonly used for bottom fishing. In the UK ...
Trawling – Trawling is a method of fishing that involves pulling a fishing net through the water behind one or more boats. Seine fishing – Seine fishing is a method of fishing that employs a seine or dragnet. Longline fishing – Longline fishing is a commercial fishing technique. [8] Trolling (fishing) Fishing dredge