Detection of Potential Fishing Zones of Bigeye Tuna (Thunnus Obesus) at Profundity of 155 m in the Eastern Indian Ocean
Remotely sensed data and habitat model approach were employed to evaluate the present of oceanographic aspect in the Bigeye tuna's potential fishing zone (PFZ) at a profundity of 155 m. Vessel monitoring system was employed to acquire the angling vessels for Bigeye tuna from January through Dec...
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doaj-edb33fbd1659420b8271a7919c86c0fd2020-11-25T03:55:59ZengUniversitas Gadjah MadaIndonesian Journal of Geography0024-95212354-91142020-04-01521293510.22146/ijg.4370826736Detection of Potential Fishing Zones of Bigeye Tuna (Thunnus Obesus) at Profundity of 155 m in the Eastern Indian OceanAchmad Fachruddin-Syah0Jonson Lumban Gaol1Mukti Zainuddin2Nadela Rista Apriliya3Dessy Berlianty4Dendy Mahabror5University of Trunojoyo Madura, Bangkalan, Madura, IndonesiaIPB University, Bogor, Jawa Barat, Indonesia.University of Hasanuddin, Makassar, IndonesiaUniversity of Trunojoyo Madura, Bangkalan, Madura, IndonesiaInstitute for Marine Research and Observation, Jembrana, Bali, IndonesiaInstitute for Marine Research and Observation, Jembrana, Bali, IndonesiaRemotely sensed data and habitat model approach were employed to evaluate the present of oceanographic aspect in the Bigeye tuna's potential fishing zone (PFZ) at a profundity of 155 m. Vessel monitoring system was employed to acquire the angling vessels for Bigeye tuna from January through December, 2015-2016. Daily data of sub-surface temperature (Sub_ST), sub-surface chlorophyll-a (Sub_SC), and sub-surface salinity (Sub_SS) were downloaded from INDESO Project website. Vessel monitoring system and environmental data were employed for maximum entropy (maxent) model development. The model predictive achievement was then estimated applying the area under the curve (AUC) value. Maxent model results (AUC>0.745) exhibited its probable to understand the Bigeye tuna's spatial dispersion on the specific sub-surface. In addition, the results also showed Sub_ST (43,1%) was the most affective aspect in the Bigeye tuna dispersion, pursued by Sub_SC (35,2%) and Sub_SS (21,6%).https://jurnal.ugm.ac.id/ijg/article/view/43708bigeye tunaprofundity of 155 meastern indian oceanmaximum entropy modelpotential fishing zone |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Achmad Fachruddin-Syah Jonson Lumban Gaol Mukti Zainuddin Nadela Rista Apriliya Dessy Berlianty Dendy Mahabror |
spellingShingle |
Achmad Fachruddin-Syah Jonson Lumban Gaol Mukti Zainuddin Nadela Rista Apriliya Dessy Berlianty Dendy Mahabror Detection of Potential Fishing Zones of Bigeye Tuna (Thunnus Obesus) at Profundity of 155 m in the Eastern Indian Ocean Indonesian Journal of Geography bigeye tuna profundity of 155 m eastern indian ocean maximum entropy model potential fishing zone |
author_facet |
Achmad Fachruddin-Syah Jonson Lumban Gaol Mukti Zainuddin Nadela Rista Apriliya Dessy Berlianty Dendy Mahabror |
author_sort |
Achmad Fachruddin-Syah |
title |
Detection of Potential Fishing Zones of Bigeye Tuna (Thunnus Obesus) at Profundity of 155 m in the Eastern Indian Ocean |
title_short |
Detection of Potential Fishing Zones of Bigeye Tuna (Thunnus Obesus) at Profundity of 155 m in the Eastern Indian Ocean |
title_full |
Detection of Potential Fishing Zones of Bigeye Tuna (Thunnus Obesus) at Profundity of 155 m in the Eastern Indian Ocean |
title_fullStr |
Detection of Potential Fishing Zones of Bigeye Tuna (Thunnus Obesus) at Profundity of 155 m in the Eastern Indian Ocean |
title_full_unstemmed |
Detection of Potential Fishing Zones of Bigeye Tuna (Thunnus Obesus) at Profundity of 155 m in the Eastern Indian Ocean |
title_sort |
detection of potential fishing zones of bigeye tuna (thunnus obesus) at profundity of 155 m in the eastern indian ocean |
publisher |
Universitas Gadjah Mada |
series |
Indonesian Journal of Geography |
issn |
0024-9521 2354-9114 |
publishDate |
2020-04-01 |
description |
Remotely sensed data and habitat model approach were employed to evaluate the present of oceanographic aspect in the Bigeye tuna's potential fishing zone (PFZ) at a profundity of 155 m. Vessel monitoring system was employed to acquire the angling vessels for Bigeye tuna from January through December, 2015-2016. Daily data of sub-surface temperature (Sub_ST), sub-surface chlorophyll-a (Sub_SC), and sub-surface salinity (Sub_SS) were downloaded from INDESO Project website. Vessel monitoring system and environmental data were employed for maximum entropy (maxent) model development. The model predictive achievement was then estimated applying the area under the curve (AUC) value. Maxent model results (AUC>0.745) exhibited its probable to understand the Bigeye tuna's spatial dispersion on the specific sub-surface. In addition, the results also showed Sub_ST (43,1%) was the most affective aspect in the Bigeye tuna dispersion, pursued by Sub_SC (35,2%) and Sub_SS (21,6%). |
topic |
bigeye tuna profundity of 155 m eastern indian ocean maximum entropy model potential fishing zone |
url |
https://jurnal.ugm.ac.id/ijg/article/view/43708 |
work_keys_str_mv |
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