Comparing skipjack tuna catch and oceanographic conditions at FAD locations in the Gulf of Bone and Makassar Strait

R. Hidayat, M. Zainuddin, A. Mallawa, M. A. Mustapha, A. R.S. Putri

Research output: Contribution to journalConference article

Abstract

This study aimed to compare the differences between characteristics of skipjack tuna (Katsuwonus pelamis) fishing grounds in the Gulf of Bone and in the Makassar Strait. We used catch size and volume data from FAD areas in the Gulf of Bone and Makassar Strait, and satellite image data including sea surface temperature (SST) and chlorophyll-a (CHL-a). We used ECDF (Empirical Cumulative Distribution Function) analysis to determine the relationship between the oceanographic variables and skipjack CPUEs that occurred in the Gulf of Bone and the Makassar Strait. The resulting data for the two fishing areas were then compared using the Spatial Analyst in ArcGIS 10.2. The analysis showed that the average SST and CHL in the Gulf of Bone (30C and 0.3 mg m-3) were higher than those in the Makassar Strait (29.5C and 0.24 mg m-3). The size of skipjack tuna caught in the two fishing areas was different. The mean total length of Skipjack tuna caught in the Makassar Strait was 23 cm, while in the Gulf of Bone it was 41 cm. There was little overlap in the size distributions. These data suggest that skipjack tuna caught around FADs in the Gulf of Bone tend to be larger than those in the Makassar Strait which may be stimulated by relatively higher productivity and thus feeding opportunity.

Original languageEnglish
Article number012038
JournalIOP Conference Series: Earth and Environmental Science
Volume370
Issue number1
DOIs
Publication statusPublished - 3 Dec 2019
Event2nd International Symposium on Marine Science and Fisheries, ISMF 2019 - Makassar, Indonesia
Duration: 22 Jun 2019 → …

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strait
bone
fishing
sea surface temperature
catch per unit effort
gulf
chlorophyll a
productivity
analysis

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

Cite this

Comparing skipjack tuna catch and oceanographic conditions at FAD locations in the Gulf of Bone and Makassar Strait. / Hidayat, R.; Zainuddin, M.; Mallawa, A.; Mustapha, M. A.; Putri, A. R.S.

In: IOP Conference Series: Earth and Environmental Science, Vol. 370, No. 1, 012038, 03.12.2019.

Research output: Contribution to journalConference article

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