Identifikasi Parameter Oseanografi Utama untuk Penentuan Daerah Penangkapan Ikan Lemuru dengan Menggunakan Citra Satelit Modis di Perairan Selat Bali

Abstract

Sardinella lemuru is one of the important economic commodities in Bali strait. Its existence and the successful exploitation of sardinella lemuru resources are influenced by the oceanography condition of the area. Satellite remote sensing provides views of the ocean and capable of detecting mesosclae features through thermal infrared and visible sensor; hence, it can be useful for locating potential fishing ground. Remote sensing data, combined with the field data increase the capability to locate the potential fishing ground and provides a powerful tool for designing harvesting strategies of marine living resources. The objectives of this research is to predict potential fishing ground of sardinella lemuru in Bali strait based on MODIS satellite data and field data collected from the fisherman. Sardinella lemuru existence is influenced by oceanographic parameters such as Sea Surface Temperature (SST) and Chlorophyl-al concentration (CC). The SST and CC information derived from satellite MODIS are used to determine the potential fishing ground of sardinella lemuru. Results indicated that area of fishing ground has SST vary from 25 to 29,50 C and CC vary from 0,10 to 3,76 mg/m3. SST and CC in Bali strait follows seasonal season and current pattern. Dominant current influences of Bali strait are Coastal South Current (APJ) and South Equatorial Current (AKS).