逐次加入のある資源におけるパラメーターの推定について-VI : 加入中心年令をも含めた太平洋海域メバチのパラメーターの同時推定

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For the simultaneous estimation of the proportion of recruits (rl) with other parameters, a new method is suggested. It is proposed that, rl in each line can be calculated from the mean recruitment age (Er) and the standard deviation (Dr), which were two parameters in the normal distribution.For example, the four parameters M, q, Er and Dr were estimated simultaneously for the Pacific bigeye tuna, Thunnus obesus (LOWE) by the tracing method. The results shown were as follows: (values within parenthesis were obtained when Er was set at 3.8, and reported in the previous paper.) Er=3.66 (3.8), Dr=1.12 (1.14), M=0.274 (0.350), q=0.202 (0.189) and ?? min=118691 (120972).
公益社団法人日本水産学会の論文