Salmon Purse Seine Boat Illustration.

Here's some information about purse seine fishing and an illustration of a purse seine. A purse seine is a large net that's deployed around a school of fish to catch them. The net is kept afloat by floats and has a lead line that's threaded through rings at the bottom. A skiff encircles the fish with the net, and then the lead line is pulled to close the net at the bottom. The net is then hauled aboard or brought alongside the vessel. Purse seiners are the largest salmon fishing vessels and are known for their long, clean decks, boom with a power block, and net stacked on the back. They also often have a power skiff that rides on the stern of the vessel.