Purse seines

found: Work cat.: Scofield, W.L. Purse seines and other roundhaul nets in California, 1951.

found: Eapen, P.K. Elsevier's dict. of fisheries, 1999(purse seine: A long wall of netting without prominent bunt or bag, that is, with very little fullness and with the webbing hanging nearly straight down between the cork and leadlines; the net is set vertically in a circular fashion in the water; the essential feature of this net is its pursing by pulling the purse line run through the rings along the bottom of the net below the leadline)

found: Wikipedia, Mar. 5, 2008:seine (fishing) (A common type of seine is a purse seine, named such because along the bottom are a number of rings. A rope passes through all the rings, and when pulled, draws the rings close to one another, preventing the fish from "sounding", or swimming down to escape the net. The purse seine is a preferred technique for capturing commercially important fish species which school, or aggregate, close to the surface: such as sardines, mackerel, anchovies, herring, certain species of tuna (schooling); and salmon soon before they swim up rivers and streams to spawn (aggregation))