Dinamika Perubahan Suhu dan Klorofil-a Serta Hubungannya terhadap Distribusi Ikan Selar Kuning (Selaroides leptolepis) di Perairan Pantai Timur Sumatera Utara

Abstract

The East Coast of North Sumatra is part of the Malacca Strait Waters which is a fishing area with a high level of exploitation. One of commodity catches in the East Coast of Sumatra are Yellowstripe Scad (Selaroides leptolepis). By knowing the parameters of Oceanography, especially temperature and chlorophyll-a, it can be predicted to the fishing area that can be used as a guide for the purpose of catching (exploitation). One of the satellites that can detect SPL and chlorophyll-a is Aqua (EOS PM) with a Moderate Resolution Imaging Spectroradiometer Sensor (MODIS). The data of Yellowstripe Scad (Selaroides leptolepis) obtained from the Ocean Fishery Harbor in Belawan. SPL in East waters of North Sumatra in 2012-2016 based on Aqua MODIS image analysis ranged from 29⁰C - 32⁰C, and chlorophyll-a distribution has a range of 0.19 - 5.26 mg / m³. The highest production occurred in the West season with the value reached 143.46 tons and the lowest production in the East Season of 139.87 tons. The production of Yellowstripe Scad was negatively correlated or contrasted with the SPL with a correlation value of -0.365. The relationship of chlorophyll-a with the catch obtained a positive correlation value of 0.660 means that if the content of chlorophyll-a in the water increases then the catch of fish will also increase and vice versa. Yellowstripe Scad cathcing areas predicted to have the highest cath is in the West Season (December-February) between the Asahan Regency to the Labuhan Batu Regency on the coordinates 2,68⁰N - 2,74⁰N and 100,37⁰E - 100,44⁰E.