There are many ways in which the 
salmon are trapped. One way is to sink 
great cage-like nets off the shore right 
in the path of the fish. The fish swim 
into the first section of the net cage 
without knowing it. They move from 
one net room to another, and fall at last 
into a great trap that holds many thou¬ 
sands of salmon. 
Another kind of net is the purse seine. 
This big net is carried on a boat called 
a seiner. When a school of salmon is 
sighted, the seiner is run close to them. 
One man gets into a rowboat, holding 
one end of the net, while the seiner circles 
the salmon with the net. The net then 
hangs straight up and down around the 
fish. Now the bottom of the net is drawn 
up by a rope that runs through rings in 
the lower edge of the net. The salmon 
are then held in a big bag from which 
they cannot escape. 
In rivers where the water flows swiftly, 
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