Spring test set for Gulf salmon excluders – “It’s an evolution,”

“Think about a salmon stream,” Gauvin said. “Think about a rock in a salmon  stream. A salmon noses up behind that and uses it as a way to get out of the  flow, this thing has dead water above it and so what a salmon will do is it will  rise above that.” Then the salmon goes above the flapper, where floats pull the top of the net  up to create more room, and if they swim forward, they can leave the net. “Pollock can go up there, some of them will, but they can’t swim forward  against the flow,” Gauvin said. Read more