About two dozen fish biologists wearing orange and yellow safety vests waded carefully through a marsh, intended to deliver an electric current to the water and drew in fish to be netted.

• 约有二十多名身穿橙黄色安全背心的鱼类生物学家，小心地涉水走过一片沼泽，准备向水发出电流，吸引鱼类入网。