Moreover, the industry would have to switch to expensive deep-water trawling.
An American-British reporter, Wendell Steavenson, has interviewed a score or more of Iraqi soldiers, from sergeants to generals, trawling through their life histories to find an answer.
They are trawling for cod.
"Law firms are trawling their celebrity client base," he says.
"If the bottom of the sea was a desert, then trawling wouldn't be a problem," he says. "But everywhere we go, we see luxuriant life."
But bottom trawling is brutal.
They had seen him trawling, so they knew there was fish there.
After trawling online chat rooms for several months and conducting 60 interviews, he found six people willing to join the production. But only three agreed to their faces being shown.
Because deep sea trawling is a recent phenomenon, the damage that has been done is still limited.
The police are trawling (through) their files for similar cases.
They are trawling London for an agent .
Bottom trawling can target cod down to 200 meters or so.
Fishing and the environment: a new invention makes trawling for fish much less harmful to coral, sponges, seaweed and other denizens of the seabed.
Scientists who have studied the issue say that trawling the ocean for all of its trash is simply impossible and would harm plankton and other Marine life.
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