Equilibrium yields and biomasses in relation to fishing mortality were generated for a wide range of life-history traits (LHTs), which included growth parameters, natural mortality, maturity, selectivity and steepness of the Beverton and Holt stock–recruitment relationship. For each combination of LHTs, the fishing mortality expected to produce maximum sustainable yield (F_msy), its selected proxies (F_0.1, F_40%, F_40%SSB and F_max) and mean length at F_msy (L_msy) were estimated. Next, linear models combining the estimated F_msy and L_msy with the traits were fitted (R² > .95). Almost all of the LHTs were statistically significant, and the largest effect on F_msy was from steepness, while natural mortality and growth rate had smaller effects. In the case of L_msy, however, the largest effect in the fitted model was from the growth rate, while steepness influenced L_msy only slightly. The F_msy proxies were evaluated, and F_40%SSB appeared to be a generally conservative F_msy proxy, while F_max always overestimated F_msy, generally to a large extent. F_0.1 and F_40% may be used as F_msy proxies or conservative proxies mainly for steepness values of 0.6 and higher; for lower steepness, they may markedly overestimate F_msy. The ratio of biomass at F_msy to virgin biomass was on average 0.34, and for a steepness of 0.9, some values were lower than 0.2. The analysis indicates that the use of the mean length of a catch in relation to L_msy for evaluating stock status should be done with caution, especially for species with a high growth rate.

中文翻译：

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根据生活史特征分析 Fmsy——对其代理和基于长度的指标的影响

针对各种生活史特征 (LHT) 生成了与捕捞死亡率相关的平衡产量和生物量，其中包括 Beverton 和 Holt 种群-招募关系的生长参数、自然死亡率、成熟度、选择性和陡度。对于 LHT 的每种组合，预期产生最大可持续产量 ( F _msy ) 的捕捞死亡率、其选择的替代指标 ( F _0.1、F _40%、F _40%SSB和F _{max ) 和}F _msy的平均长度( L _msy ) 分别为估计的。接下来，线性模型结合了估计的F _msy和符合特征的L _msy ( R ²  > .95)。几乎所有的 LHT 都具有统计学意义，对F _msy的最大影响来自陡度，而自然死亡率和增长率的影响较小。然而，在L _msy的情况下，拟合模型中最大的影响来自增长率，而陡度对L _msy的影响很小。对F _msy代理进行了评估，F _40%SSB似乎是一个普遍保守的F _msy代理，而F _max总是高估F_msy，一般在很大程度上。F _0.1和F _40%可用作F _msy代理或保守代理，主要用于 0.6 或更高的陡度值；对于较低的陡度，他们可能会明显高估F _msy。F _msy的生物量与原始生物量的比率平均为 0.34，对于 0.9 的陡度，一些值低于 0.2。分析表明，应谨慎使用与L _msy相关的渔获物平均长度来评估种群状况，特别是对于具有高增长率的物种。