The optimum fishing effort of fixed net is 12912 nets.

定置网的最适捕捞力量估算为12912张。

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We must intensify the management of the fish resources, and take powerful measures to control the fishing effort and catches.

必须加强对该渔场鱼类资源的管理，采取有力措施控制捕捞力量的投入和渔获量的产出，以防鱼类资源进一步恶化。

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The management of autumn shrimp fishery mainly involves determining the open date, managing fishing effort, and allocating resource reasonably.

秋汛对虾渔业管理主要是开捕期与捕捞力量的管理和合理分配资源问题。

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Patrick Keliher, the Commissioner of the Maine Department of Marine Resources, said his agency has investigated reports of lobstermen coercing others not to go out fishing in an effort to lower supplies and raise prices back to more normal levels.

WSJ: Lobster Glut Slams Prices

Gordon Buchanan presenter and cameraman on the BBC series Autumnwatch has been living aboard the working fishing boat with one other BBC colleague in an effort to capture the killer whales on film.

BBC: Earth News - Massive killer whale pod sighted

"We are urging anyone who is fishing, sailing or walking along beaches to record their jellyfish encounters and join in this effort to understand the ecology of our fabulous jellyfish, " he said.

BBC: Lion's mane jellyfish