
Commercial salmon licences are issued for three gear types: seine, gill net and troll. Trollers employ hooks and lines which are suspended from large poles extending from the fishing vessel. Altering the type and arrangement of lures used on lines allows various species to be targeted. Trollers catch approximately 25% of the commercial harvest.
Seine
nets are set from fishing boats with the assistance of a
small skiff. Nets are set in a circle around aggregations of
fish. The bottom edges of the net are then drawn together into a
"purse" to prevent escape of the fish. Seiners take
approximately 50% of the commercial catch.
Salmon gill nets are rectangular nets that hang in the water
and are set from either the stern or bow of the vessel. Fish
swim headfirst into the net, entangling their gills in the mesh.
Altering mesh size and the way in which nets are suspended in
the water allows nets to target selectively on certain species
and sizes of fish. Gill netters generally fish near coastal
rivers and inlets, taking about 25% of the commercial catch.
The commercial troll fishery open area varies
from year to year depending
on the
species available. For
instance, if southern bound chinook salmon are the target species,
then the west coast of the Queen Charlotte Islands is a location
where northern trollers can harvest these chinook. On
the north coast, the first commercial gill net fishery occurs
May 31 in Area 8. Commercial net openings then occur on a weekly
basis until mid October. The first commercial seine fishery
generally occurs in mid-July, with the exact date depending
on returning stock strength. The troll fishery generally
occurs July 1, and remains open until a set number of fish are
caught.
Licence conditions and commercial fishing plans
lay
out
allowable gear characteristics such as hook styles, mesh size,
net dimensions and the methods by which gear may be used (e.g.
set times for nets, mandatory brailing and sorting of fish).
On the North Coast, the commercial net fishery is open in defined
terminal areas of various systems, notably the Skeena/Nass systems
and the Bella Coola/Atnarko. Openings could occur anywhere inside
the surfline depending on local stock strengths.