Jurnal Ilmu Kelautan Spermonde
VOLUME 8 NUMBER 1, 2022

ASSESSING DISTRIBUTION PATTERN FOR SKIPJACK TUNA IN BONE GULF, INDONESIA DURING JANUARY-JUNE

Zainuddin, Mukti (Unknown)
Ridwan, Muhammad (Unknown)
Muhiddin, Amir Hamzah (Unknown)



Article Info

Publish Date
01 May 2023

Abstract

Satellite remote sensing provides systematically important information on oceanographic signatures. Sea surface temperature (SST) and chlorophyll-a concentration (Chl-a) obtained from Aqua/ Moderate Resolution Imaging Spectro-radiometer (MODIS) data together with skipjack fishing data during January-June were applied to assess the distribution pattern of skipjack tuna in the Bone Gulf, Indonesia. Geographic information system techniques were employed to map out the potential fishing zone generated from the Cobb Douglass model. The fish distribution pattern was produced by the movement of the Gravity Center of the potential fishing ground. Results expressed that the most potential catch per unit efforts (fish/trip) associated with the areas where a combination of optimum SST and chlorophyll-a concentration ranged was found. The center of skipjack potential fishing zones developed in January-February along with the western regions in the Bone Gulf and moved to the northern side during March and April, and subsequently migrated to the south in May –June. We found that skipjack tuna showed a clockwise movement pattern throughout the Bone Gulf during the first semester period (January-June). Therefore, the potential fishing zones suggest corresponding to the movement of skipjack concentration, which may link with prey upon by skipjack.

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Journal Info

Abbrev

Jiks

Publisher

Subject

Earth & Planetary Sciences

Description

The aims of this journal is to provide a venue for academicians, researchers and practitioners for publishing the original research articles or review articles in the field of Marine ...