These symbols would be displayed on occasions when the spirits are being called upon to increase the yield of corn, or fish, or to heal someone.

这些象征会在重大活动中表演，借由精神力量来增加谷物或鱼的产量，或是治疗某人。

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Any of various usually woody vines of the genus derris of tropical Asia whose roots yield the insecticide rotenone; several are sources of native fish and arrow poisons.

热带亚洲鱼藤属的任何一种木质藤本植物，其根产出一种属于杀虫物质的鱼藤酮；该属有几种植物当地用作鱼毒和箭毒的原料。

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Stock assessment is not only to forecast the static optimum fishing effort and sustainable yield, but also to assess the reactions of fish and fishermen to management choices and other changes.

资源评估不仅仅是预测静止的最佳捕捞努力量和持续产量，而是评估鱼类和渔民对管理决策和其它变化的动态反应。

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Like the other forms of industrial fishing, longlines, some of which submerge thousands of hooks in the water, yield immense quantities of bycatch, or unwanted fish, most of which is severely injured or dead.

NEWYORKER: Neptune��s Navy