It is a type of the small gill net.
Boats using gill nets off South America are a large part of the problem, he said.
The shad are more loosely held in the gill nets.
This verse is thus more likely referring to some form of gill net.
A number are caught by gill nets deployed at depths of 40 to 100 feet.
More than 1,000 miles of gill nets were sold in Sonora last year.
It occasionally is killed in gill nets and then tossed back by the fishermen.
The Tilapia are caught by gill nets, and do not reach the size they once did.
But once these were wiped out, they took to using deep-water gill nets.
I lean out of the boat and try to unravel the gill net.