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Detection of pelagic habitat hotspots for skipjack tuna in the Gulf of Bone-Flores Sea, southwestern Coral Triangle tuna, Indonesia.(Research Article)(Report)

Using remote sensing of sea surface temperature (SST), sea surface height anomaly (SSHA) and chlorophyll-a (Chl-a) together with catch data, we investigated the detection and persistence of important pelagic habitat hotspots for skipjack tuna in the Gulf of Bone-Flores Sea, Indonesia. We analyzed th... Full description

Journal Title: PLoS ONE Oct 2, 2017, Vol.12(10), p.e0185601
Main Author: Zainuddin, Mukti
Other Authors: Farhum, Aisjah , Safruddin, Safruddin , Selamat, Muhammad Banda , Sudirman, Sudirman , Nurdin, Nurjannah , Syamsuddin, Mega , Ridwan, Muhammad , Saitoh, Sei-Ichi
Format: Electronic Article Electronic Article
Language: English
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ID: ISSN: 1932-6203 ; DOI: 10.1371/journal.pone.0185601
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title: Detection of pelagic habitat hotspots for skipjack tuna in the Gulf of Bone-Flores Sea, southwestern Coral Triangle tuna, Indonesia.(Research Article)(Report)
format: Article
creator:
  • Zainuddin, Mukti
  • Farhum, Aisjah
  • Safruddin, Safruddin
  • Selamat, Muhammad Banda
  • Sudirman, Sudirman
  • Nurdin, Nurjannah
  • Syamsuddin, Mega
  • Ridwan, Muhammad
  • Saitoh, Sei-Ichi
subjects:
  • Skipjack Tuna – Research
  • Skipjack Tuna – Physiological Aspects
ispartof: PLoS ONE, Oct 2, 2017, Vol.12(10), p.e0185601
description: Using remote sensing of sea surface temperature (SST), sea surface height anomaly (SSHA) and chlorophyll-a (Chl-a) together with catch data, we investigated the detection and persistence of important pelagic habitat hotspots for skipjack tuna in the Gulf of Bone-Flores Sea, Indonesia. We analyzed the data for the period between the northwest and southeast monsoon 2007-2011. A pelagic hotspot index was constructed from a model of multi-spectrum satellite-based oceanographic data in relation to skipjack fishing performance. Results showed that skipjack catch per unit efforts (CPUEs) increased significantly in areas of highest pelagic hotspot indices. The distribution and dynamics of habitat hotspots were detected by the synoptic measurements of SST, SSHA and Chl-a ranging from 29.5#176; to 31.5#176;C, from 2.5 to 12.5 cm and from 0.15 to 0.35 mg m.sup.-3, respectively. Total area of hotspots consistently peaked in May. Validation of skipjack CPUE predicted by our model against observed data from 2012 was highly significant. The key pelagic habitat corresponded with the Chl-a front, which could be related to the areas of relatively high prey abundance (enhanced feeding opportunity) for skipjack. We found that the area and persistence of the potential skipjack habitat hotspots for the 5 years were clearly identified by the 0.2 mg m.sup.-3 Chl-a isopleth, suggesting that the Chl-a front provides a key oceanographic indicator for global understanding on skipjack tuna habitat hotspots in the western tropical Pacific Ocean, especially within Coral Triangle tuna.
language: eng
source:
identifier: ISSN: 1932-6203 ; DOI: 10.1371/journal.pone.0185601
fulltext: fulltext
issn:
  • 1932-6203
  • 19326203
url: Link


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titleDetection of pelagic habitat hotspots for skipjack tuna in the Gulf of Bone-Flores Sea, southwestern Coral Triangle tuna, Indonesia.(Research Article)(Report)
creatorZainuddin, Mukti ; Farhum, Aisjah ; Safruddin, Safruddin ; Selamat, Muhammad Banda ; Sudirman, Sudirman ; Nurdin, Nurjannah ; Syamsuddin, Mega ; Ridwan, Muhammad ; Saitoh, Sei-Ichi
ispartofPLoS ONE, Oct 2, 2017, Vol.12(10), p.e0185601
identifierISSN: 1932-6203 ; DOI: 10.1371/journal.pone.0185601
subjectSkipjack Tuna – Research ; Skipjack Tuna – Physiological Aspects
descriptionUsing remote sensing of sea surface temperature (SST), sea surface height anomaly (SSHA) and chlorophyll-a (Chl-a) together with catch data, we investigated the detection and persistence of important pelagic habitat hotspots for skipjack tuna in the Gulf of Bone-Flores Sea, Indonesia. We analyzed the data for the period between the northwest and southeast monsoon 2007-2011. A pelagic hotspot index was constructed from a model of multi-spectrum satellite-based oceanographic data in relation to skipjack fishing performance. Results showed that skipjack catch per unit efforts (CPUEs) increased significantly in areas of highest pelagic hotspot indices. The distribution and dynamics of habitat hotspots were detected by the synoptic measurements of SST, SSHA and Chl-a ranging from 29.5#176; to 31.5#176;C, from 2.5 to 12.5 cm and from 0.15 to 0.35 mg m.sup.-3, respectively. Total area of hotspots consistently peaked in May. Validation of skipjack CPUE predicted by our model against observed data from 2012 was highly significant. The key pelagic habitat corresponded with the Chl-a front, which could be related to the areas of relatively high prey abundance (enhanced feeding opportunity) for skipjack. We found that the area and persistence of the potential skipjack habitat hotspots for the 5 years were clearly identified by the 0.2 mg m.sup.-3 Chl-a isopleth, suggesting that the Chl-a front provides a key oceanographic indicator for global understanding on skipjack tuna habitat hotspots in the western tropical Pacific Ocean, especially within Coral Triangle tuna.
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titleDetection of pelagic habitat hotspots for skipjack tuna in the Gulf of Bone-Flores Sea, southwestern Coral Triangle tuna, Indonesia.(Research Article)(Report)
descriptionUsing remote sensing of sea surface temperature (SST), sea surface height anomaly (SSHA) and chlorophyll-a (Chl-a) together with catch data, we investigated the detection and persistence of important pelagic habitat hotspots for skipjack tuna in the Gulf of Bone-Flores Sea, Indonesia. We analyzed the data for the period between the northwest and southeast monsoon 2007-2011. A pelagic hotspot index was constructed from a model of multi-spectrum satellite-based oceanographic data in relation to skipjack fishing performance. Results showed that skipjack catch per unit efforts (CPUEs) increased significantly in areas of highest pelagic hotspot indices. The distribution and dynamics of habitat hotspots were detected by the synoptic measurements of SST, SSHA and Chl-a ranging from 29.5#176; to 31.5#176;C, from 2.5 to 12.5 cm and from 0.15 to 0.35 mg m.sup.-3, respectively. Total area of hotspots consistently peaked in May. Validation of skipjack CPUE predicted by our model against observed data from 2012 was highly significant. The key pelagic habitat corresponded with the Chl-a front, which could be related to the areas of relatively high prey abundance (enhanced feeding opportunity) for skipjack. We found that the area and persistence of the potential skipjack habitat hotspots for the 5 years were clearly identified by the 0.2 mg m.sup.-3 Chl-a isopleth, suggesting that the Chl-a front provides a key oceanographic indicator for global understanding on skipjack tuna habitat hotspots in the western tropical Pacific Ocean, especially within Coral Triangle tuna.
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titleDetection of pelagic habitat hotspots for skipjack tuna in the Gulf of Bone-Flores Sea, southwestern Coral Triangle tuna, Indonesia.(Research Article)(Report)
authorZainuddin, Mukti ; Farhum, Aisjah ; Safruddin, Safruddin ; Selamat, Muhammad Banda ; Sudirman, Sudirman ; Nurdin, Nurjannah ; Syamsuddin, Mega ; Ridwan, Muhammad ; Saitoh, Sei-Ichi
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abstractUsing remote sensing of sea surface temperature (SST), sea surface height anomaly (SSHA) and chlorophyll-a (Chl-a) together with catch data, we investigated the detection and persistence of important pelagic habitat hotspots for skipjack tuna in the Gulf of Bone-Flores Sea, Indonesia. We analyzed the data for the period between the northwest and southeast monsoon 2007-2011. A pelagic hotspot index was constructed from a model of multi-spectrum satellite-based oceanographic data in relation to skipjack fishing performance. Results showed that skipjack catch per unit efforts (CPUEs) increased significantly in areas of highest pelagic hotspot indices. The distribution and dynamics of habitat hotspots were detected by the synoptic measurements of SST, SSHA and Chl-a ranging from 29.5#176; to 31.5#176;C, from 2.5 to 12.5 cm and from 0.15 to 0.35 mg m.sup.-3, respectively. Total area of hotspots consistently peaked in May. Validation of skipjack CPUE predicted by our model against observed data from 2012 was highly significant. The key pelagic habitat corresponded with the Chl-a front, which could be related to the areas of relatively high prey abundance (enhanced feeding opportunity) for skipjack. We found that the area and persistence of the potential skipjack habitat hotspots for the 5 years were clearly identified by the 0.2 mg m.sup.-3 Chl-a isopleth, suggesting that the Chl-a front provides a key oceanographic indicator for global understanding on skipjack tuna habitat hotspots in the western tropical Pacific Ocean, especially within Coral Triangle tuna.
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