266 EEPORT OF COMMISSIONER OF FISH AND FISHERIES. 



turn at short angles, but prefer a course of straight lines or long curves. If the passage 

 to the tunnel is narrow and contracted, a fish becoming alarmed is much more apt to 

 turn short round and pass out at the opening it has just entered 



Fig. 12. 



In the large heart 

 they are quite as apt 

 to dart through the 

 tunnel as to escape 

 through the shore- 

 w^ard openings. 



Like many other 

 gregarious animals, 

 the white-fish and 

 lake herring will 

 flock in behind a 

 leader, just as sheep 

 will through a gate. 

 Once in the x>ot, 

 they are not apt to 

 find the small open- 

 ing at the outlet of 

 the tunnel, but swim 

 around the sides, 

 and, after a time, 

 becoming familiar 

 wdth the net, or 

 crowded against the 

 sides by the num- 

 bers within the pot, 

 many attempt to 

 pass through the 

 nieshes, the smaller 

 ones escaping, and a 

 few larger, becom- 

 ing gilled, die. Still, 

 no frantic eftbrt at 

 escape is made until 

 the net is lifted. 



Taking out the 

 fishes. — In taking 

 them out a boat is 

 sent round, and the 

 ropes staying the 

 bottom of the pound, 

 and the tunnel-guys, 

 are all cast loose. 

 The boat is now 

 brought inside of 

 the pot, the "shov- 

 ers" are drawn up, 

 closing the entrance 

 to the tunnel, and 

 the end of the tun- 

 nel is pulled up and 

 thrown back over 

 the side of the pot. 

 The bottom .of the 

 net is raised by pull- 

 ing up the tun- 

 nel side, until it is 

 reached ; it is then 

 tripped along under 

 the boat until the 

 fishes are gathered 

 into a corner, like 

 shaking wheat into 

 the middle of a sheet, 

 when they are 

 thrown into the boat 

 with a scoop-net. 



The stakes on wliicli pound netting is fastened are usually driven into 

 place by means of a pile-driver, and are never left down throughout the 



