Keterkaitan Antara Fenomena Upwelling dan Jumlah Tangkapan (Hook Rate) Tuna di Perairan Selatan Pulau Jawa-Bali

The upwelling area is very potential tuna fishing ground. This rich in nutrients and has a high fishery productivity, thus will trigger the arrival of to find food area. occurs through chain process (phytoplankton – small herbivorous fish carnivorous tuna). study aims examine correlation between hook rate. Upwelling data were obtained from MODIS chlorophyll-a concentrations which processed using SeaDAS ArcGIS software, while catch logbook belonging P.T. Perikanan Nusantara, Benoa, Bali. relationship rate was analyzed Pearson test. test results showed that had 0.589 (n = 13), indicating strong influence on at southern waters Java-Bali.