Relation Between the Distribution of Chlorophyll-A on Catch Skipjack Tuna (Katsuwonus pelamis) Landed in PPN Palabuhanratu, Indonesia

Fisheries

This study aims to determine the relationship between the distribution of chlorophyll-a to the yield of skipjack tuna (Katsuwonus pelamis) landed in PPN Palabuhanratu Sukabumi, West Java based on the distribution of chlorophyll-a. The method used is a survey method. Primary spatial data in the northern waters of Palabuhanratu are chlorophyll-a data and skipjack tuna fishing production data. Chlorophyll-a data is obtained from satellite images downloaded from the NASA database, while the fishing production data of skipjack tuna is obtained from PPN Palabuhanratu, West Java. Based on the data obtained, it can be concluded that the highest amount of catch occurred in 2015 with a total of 606,044 kg and the lowest was in 2016 with a total of 134,792 kg. This is due to high market demand in 2015 which resulted in a drastic decline in the following year. the catch of skipjack tuna is only 0.79% influenced by the distribution of chlorophyll-a and 99.21% is influenced by other factors because chlorophyll-a is not the only indicator used to identify potential fishing areas. Apart from chlorophyll-a, other indicators are usually used to determine potential fishing areas, namely sea surface temperature, and currents. The relationship between the distribution of chlorophyll-a and the catch has a very weak relationship with a correlation coefficient of 0.0888.

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