Length-Weight Relationship and Condition Factor of Yellowfin Tuna (Thunnus albacares) from Demta Coast, Jayapura Regency, Papua

The population of Thunnus albacares yellowfin tuna from the Scombridae family is very abundant in North Papua Waters (WPP 717). This study aims to analyze parameters dynamics based on long-weight relationship and condition factors Demta Coastal Waters, Jayapura Regency. Fish data collection uses passive active fishing methods using gill nets, handlines, long line through activities by traditional fishermen during April - June 2022. Data analysis length-weight factor. results this found that structure (T. albaceras) was diverse waters Papua, with a negative allometric growth pattern (b < 3), i.e. body length faster than weight. factor averaged 1.1302 maximum 1.4718 minimum 0.7028. Where gonadal maturity period morphometric adaptation occurs, weight becomes slower.