INTRODUCTION OF SUITABLE STOCK-RECRUITMENT RELATIONSHIP BY A COMPARISON OF STATISTICAL-MODELS

A method for estimating the suitable stock-recruitment equations based on a comparison of various statistical models is presented. Fourteen statistical models including the Ricker curve and Beverton-Holt curve were considered. Stock-recruitment relations were estimated by the maximum likelihood method and suitable models were selected using AIC. Thirty-five sets of stock-recruitment data derived from published papers were analyzed. The results show that the various statistical models selected as suitable models do not always coincide with the model used in the original papers. A detailed examination is needed to estimate the stock-recruitment relationship.