Studies on Estimating Parameters of Fish Population Supplied by Sequential Recruitment-VI
Simultaneous Estimation of Parameters with the Mean Recruiting Age of Pacific Bigeye Tura
1974 Volume 40 Issue 1 Pages 51-56
Details
1974 Volume 40 Issue 1 Pages 51-56
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).
