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irreparably tangled lines. Only the pollock fishery in Korea uses this. The third method is known
as overhauling. Lines are set permanently and each day the line is hauled, fish removed,
rebaited and redeployed simultaneously. Smallscale cod fishers off Newfoundland use this.
Figure. Semipelagic longline with anchor (a), buoy line (bl), buoy (b) and marker buoy (mb) with weight (w) and
flag, longline (ll), float (f), dropper (d) and topline (tl). Redrawn from Bjordal and Lokkeborg (1996).
Pelagic (pelaagiline õngejada)
Primarily used by tuna and billfish fisheries, the main line is attached at either end to buoys, and
floats are placed at regular interval. Sometimes the branch lines are weighted, but this method
usually relies on the mainline sinking under its own weight to get to the required depth.
Figure. Pelagic longlines showing the shape of a regular tuna longline (above) with 6 branch lines (bl) and hooks (h)
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