Sains Malaysiana 44(2)(2015): 225–232

Determination of Potential Fishing Grounds of Rastrelliger kanagurta Using Satellite Remote Sensing and GIS Technique

(Penentuan Kawasan Penangkapan Potensi Rastrelliger kanagurta

Menggunakan Satelit Penderiaan Jauh dan Teknik GIS)

SUHARTONO NURDIN^1,3, MUZZNEENA AHMAD MUSTAPHA^1,2*, TUKIMAT LIHAN¹ & MAZLAN ABD GHAFFAR¹

¹School of Environmental and Natural Resource Sciences, Faculty of Science and Technology

Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia

²Research Centre for Tropical Climate Change System (IKLIM), Faculty of Science and Technology

Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia

³Fisheries and Marine Services, Government of South Sulawesi Province

90126 Makassar, Indonesia

Received: 24 April 2014/Accepted: 31 July 2014

ABSTRACT

Analysis of relationship between sea surface temperature (SST) and Chlorophyll-a (chl-a) improves our understanding on the variability and productivity of the marine environment, which is important for exploring fishery resources. Monthly level 3 and daily level 1 images of Moderate Resolution Imaging Spectroradiometer Satellite (MODIS) derived SST and chl-a from July 2002 to June 2011 around the archipelagic waters of Spermonde Indonesia were used to investigate the relationship between SST and chl-a and to forecast the potential fishing ground of Rastrelliger kanagurta. The results indicated that there was positive correlation between SST and chl-a (R=0.3, p<0.05). Positive correlation was also found between SST and chl-a with the catch of R. kanagurta (R=0.7, p<0.05). The potential fishing grounds of R. kanagurta were found located along the coast (at accuracy of 76.9%). This study indicated that, with the integration of remote sensing technology, statistical modeling and geographic information systems (GIS) technique were able to determine the relationship between SST and chl-a and also able to forecast aggregation of R. kanagurta. This may contribute in decision making and reducing search hunting time and cost in fishing activities.

Keywords: chl-a; fish forecasting; satellite imageries; Spermonde Indonesia; SST

ABSTRAK

Analisis hubungan antara suhu permukaan laut (SST) dan klorofil-a meningkatkan pemahaman kita berkaitan kepelbagaian serta produktiviti persekitaran marin kerana ia penting untuk meneroka sumber perikanan. Imej SST dan klorofil-a bulanan (peringkat 3) dan harian (peringkat 1) daripada Satelit Pengimejan Spektroradiometer Resolusi Sederhana (MODIS) dari Julai 2002 hingga Jun 2011 di sekitar perairan kepulauan Spermonde Indonesia telah digunakan untuk mengkaji hubungan antara SST dan klorofil-a serta meramal kawasan potensi penangkapan bagi spesies Rastrelliger kanagurta. Keputusan menunjukkan bahawa terdapat korelasi positif antara SST dengan klorofil-a (R=0.3, p<0.05). Hubungan positif juga diperoleh antara SST dan klorofil-a dengan tangkapanR. kanagurta (R=0.7, p<0.05). Kawasan potensi penangkapan bagi spesiesR. Kanagurta adalah di sepanjang perairan pantai (pada ketepatan 76.9%). Kajian ini menunjukkan bahawa, dengan integrasi teknologi penderiaan jauh, pemodelan statistik dan teknik sistem maklumat geografi (GIS) dapat menentukan hubungan antara SST dan chl-a dan juga dapat meramalkan kawasan pengumpulanR. kanagurta. Keputusan kajian ini mampu menyumbang dalam membuat keputusan dan menjimatkan masa dan kos dalam aktiviti penangkapan ikan.

Kata kunci: Klorofil-a; imej satelit; ramalan kawasan perikanan; Spermonde Indonesia; SST

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*Corresponding author; email: muzz@ukm.edu.my