A comparison of Fratios (maximum allowed Frebuild/Fmsy), given various intrinsic growth rate coefficients (r) values, an initial biomass ratio (Bratio) of 0.32, and a rebuilding time (t) of 10 years.
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Stocks with an r value of 0.200 or less are exempt from the mandated 10 year rebuilding requirement, while other stocks are subject to Fratios ranging from 0.23 to 0.99. Under normal circumstances, the harvest policy for healthy U.S. fish stocks (i.e., not overfished) often ranges between 75% and 95% of Fmsy (Carmichael and Fenske 2010).A comparison of Fratios (maximum allowed Frebuild/Fmsy), given various intrinsic growth rate coefficients (r) values, an initial biomass ratio (Bratio) of 0.32, and a rebuilding time (t) of 10 years.
创建时间：
2015-12-02
