One method of commercial salmon fishing is the use of Seiners, a large net laid out vertically from the back of the boat with buoys at the top and weights at the bottom. Essentially, the fish are encircled by the nets or seiners and hauled onboard by a large drum - in some cases the salmon are kept alive in the boat's hold and delivered fresh. The more common method of commercial fishing seen in the waters around Vancouver Island is Gillnetting.
Commercial Fishing off Vancouver Island, British Columbia, Canada.