155 
Nets 
The strength, durability, resistance to rot, and invisibility of nylon nets 
make them superior to those of cotton or linen, although they are more 
expensive. Braided lead and float lines where leads and floats are enclosed 
are much less likely to tangle. 
One of the most useful of collecting tools is the seine, a net of fine mesh 
pulled along the bottom. It is weighted to sink when in water deeper than 
its depth. Those of smaller meshes catch smaller fish but are harder to pull. 
Those with a built-in bag in the middle arc the most productive. Generally a 
mesh of one-eighth to one-quarter inch is most effective. One with a fine- 
meshed bag and the rest of the net of coarser mesh combines these two 
qualities effectively. 
Two seines may be found more useful than one. A small seine, about 12 
by 6 feet, may be used for small streams and embayments. A 40 or 60 by 6 
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figure 47. Operation of a seine. 
