The classical fish population dynamic models were largely on the basis of stable population behavior assumption.
经典的鱼类种群动态模型是以稳定的种群行为为基础的.
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When the white noise level ( coefficient of variation ) increases to 20 % , the cyclical fish population spasmodic.
在白色噪音水平 ( 变动系数 ) 增加至20%时, 周期型种群变为不稳定型.
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