The productivity and the pattern of yellowfin tuna (Thunnus albacares) fishing season in Morotai Island waters

Abstract

Tuna fisheries in Morotai Island have great potential economic value. The production of Tuna in 2016 as much as 325 tons. This condition then made Tuna as the superior commodity in this territory [3]. Know the productivity and the pattern of tuna fishing season can maximize tuna production in Morotai Island. The purpose of this research was to investigate the productivity and Yellowfin Tuna fishing season in Morotai Island waters. The study used a survey method by conducting, the preliminary study in June 2018, and collecting data in the field during July-August 2018. The primary was obtained from fishing results data, numbers of the fishing trip from Tuna's fishers. For the time series secondary data were derived from DKP Morotai Island is the time series data year 2009-2016, DKP Province Maluku Utara, The Log Book of Pacific Tuna Fishers Cooperative, and BPS Morotai Island. The analyzing consisted of CPUE analysis and time series (moving average) analysis. The research results showed that productivity catching Tuna is 0.798 tons/year. Although the productivity in every year was fluctuating but have a low trend, because of the catching of Tuna in Morotai Island used motorboat with small capacity, which is 1,5-3 GT. The analysis results of time series (moving average) analysis showed that the season for fishing Tuna happened throughout the year, with the peak of season happened in March and June.