Pola Musim Penangkapan Ikan Tongkol (Euthynnus Affinis) Berdasarkan Data Land…

This research was conducted in November 2017 at Territorial Fishing Port of Sibolga, North Sumatra Province. The purpose of this study is to find out the appropriate fishing season for catching mackarel tuna (Euthynnusaffinis) and obtaining fluctuations in tuna catches in sibolga’s waters. This research use survey method, monthly production data and effort data from Territorial Fishing Portof…