With the control of ecological factors, fish can be induced to spawn synchronously with average rates of fertilization and incubation reaching 80 9% and 76 3% respectively.

运用人工调控环境因子和使用适宜的促熟与催产的方法，能诱导雌雄亲鱼性腺发育同步，平均受精率为80 9% ，平均孵化率为76 3 %。

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The debate (around population control) needs to be reopened as part of a second ecological revolution.

作为第二轮生物进化的一部分，有关人口控制的辩论应重新展开。

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Pirate fishing is out of control, depriving some the most world's most vulnerable communities of food and leading to ecological catastrophe, a three-year investigation has found.

一项为期三年的调查发现，掠夺式捕捞已失控，使世界上最脆弱的生物群落失去食物，导致生态灾难。

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