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Total Allowable Catch: catch limitations for commercially important fish species made by the Council of Fisheries Ministers on the basis of scientific advice. 

A top predator or apex predator is a predator at the top of the food chain and is not eaten by any other animal. Sharks are good examples of top predators. 

Dragged fishing gears consist of a funnel-shaped net in which the fish are caught. They are dragged over the ground or pulled floating through the water column. Drags are metal frames which are pulled over the seabed. It is possible that a small net is mounted in the frames. The drag gathers the animals living in the soil, and also captures animals that are on or just above the bottom.

A trammel consists of three interconnected nets standing upright in the water. The outer net has a wide mesh and the inner nets have thin nets. 

A fishing technique whereby conical nets ends up in a pit, by dragging the nets through the water column or over the bottom. 

Lines with (artificial) bait drawn through the water column. The troll lines are picked up (hand-operated or mechanised) as soon as there is a fish on the line. 

A variation within handline fishing, whereby the lines with bait or artificial bait are slowly being pulled through the water. 

A technique whereby one ship pulls out an assembly of two bottom otter trawls side to side. With the help of rubber cables, a vibration is released on the seabed that scares fish. This is a lighter variant within the bottom trawl fishery, and is also called a double bottom trawl.