Growth parameters of Argopecten purpuratus and associated statistics
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Estimation of growth parameters of Argopecten purpuratus using the ELEFAN_SA optimization procedure implemented in TropFishR. Ncohort: is the number of yearly repeating cohorts; Agemax: maximum age of the population; L∞ L asymptotic total length; K: von Bertalanffy growth constant; t_anchor: is the fraction of the year (ranging between 0 and 1) where yearly repeating growth curves cross length equal to zero; C: is a constant indicating the amplitude of the growth oscillation; ts is the fraction of a year where the sine wave oscillation begins; Φ´: growth performance index (see eq. 3); Rn_max: maximum possible score obtained during the fitness maximization process; ASP: available sum of peaks (for details see Mildenberger et al. 2017 [30]). CI: confidence intervals for growth parameters calculated with the jack knife technique [30]
基于TropFishR中实现的ELEFAN_SA优化程序,估算紫扇贝(Argopecten purpuratus)的生长参数。其中:Ncohort为年际重复同生群的数量;Agemax为种群最大年龄;L∞为渐近总长度;K为冯·贝塔朗菲生长常数;t_anchor为年周期内(取值范围0至1)年际重复生长曲线与长度为0的位置相交的时间占比;C为表征生长振荡幅度的常数;ts为正弦生长振荡起始时刻的年占比;Φ′为生长性能指数(详见公式3);Rn_max为适配度最大化过程中可获得的最高得分;ASP为可用峰求和值(详细说明参见Mildenberger等2017年文献[30]);CI为采用刀切法(jack knife technique)计算得到的生长参数置信区间[30]。



