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Yellowfin tuna (Thunnus albacares) is a superior fish resources are distributed in an area of the waters of the Aceh province. So far, yellowfin tuna fishermens have a problem in determining operational point of fish fishing ground. Determination of fish fishing ground can be estimated from water condition that is species habitat and usually described with oceanographic parameters. Sea surface temperature (SPL) and chlorophyll-a are an important oceanography to know the existence of yellowfin tuna and to analyze a potential fishing ground easier. Therefore, this research aimed to examine and analyze fish fishing ground of yellowfin tuna based on SPL parameter and chlorophyll-a distributions in the waters of Aceh province. The methods used in this study include data of yellowfin tuna catches in the waters of Aceh Province with purposive sampling, and the SPL and chlorophyll-a analyses using the Modis Aqua satellite image data that are processed with AcrGIS software. The results showed the SPL distributions in the waters of Ace province were range from 26-34 °C. The highest SPL was reached 34.74 °C, occurs in February and the lowest SPL 26.19 °C, occurs in April. Analysis of chlorophyll-a distributions in the waters of Aceh province were range 0.01-3.7 mg/m3. The highest of chlorophyll-a was 3.75 mg/m3 occur in August, while the lowest chlorophyll-a was 0.0120 mg/m3 occur in July. Based on regression analysis, the relationship between the distributions of SPL and chlorophyll-a not significantly to the catch yellowfin tuna in the waters of Aceh province.

ANALISIS DAERAH PENANGKAPAN IKAN MADIDIHANG (Thunnus albacares) BERDASARKAN SUHU PERMUKAAN LAUT DAN SEBARAN KLOROFIL-A DI PERAIRAN PROVINSI ACEH