Research Article: An analysis of the maximum economic yield of Kilka fisheries in the southern Caspian Sea

This study combined socio-economic data with long time series data for Kilka species' annual catch and effort from ۲۰۰۳ to ۲۰۱۷, in the Iranian waters of the Caspian Sea. This analysis was conducted to estimate maximum sustainable yield, maximum economic yield, and their respective effort levels to manage and exploit the Kilka spices in a sustainable manner. According to our estimation, MSY was ۲۲۸۵۰ t, with a total income of ۵۵۸۷۷۱۵ at an effort value (fmsy) of ۹۴۹۸ vessel night. The figure for MEY were ۲۱۹۸۸ t, with a total income of ۵۳۷۶۸۴۷ with a substantially lower fishing effort value (fmey) of ۷۶۵۳ vessel night. Comparing the landing of Kilka, in ۲۰۱۷ (۲۲۶۰۲ tonnes) with the results of the surplus production model analysis, it is suggested that in order to conserve stocks of common Kilka, it is necessary to decrease the level of catch and fishing efforts based on the results of the present study.

کلیدواژه ها:

Kilka fishery ، MSY ، MEY ، fmsy ، fmey ، Caspian Sea