Vertical distribution of blue Shark (Prionace glauca) in The Indian Ocean

Each fish species tends to choose a suitable environment suitable for its survival and reproduction horizontally and vertically. Blue shark (Prionace glauca) is the dominant catch of pelagic sharks by-catch in the Eastern Indian Ocean longline tuna fishery, with about 70% of the total sharks caught...

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Autores principales:	Rochman Fathur, Arnenda Gussasta Levi, Wujdi Arief, Kurniawan Roy
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/e4e85aead4d747faa33252f91e0188b9
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spelling	oai:doaj.org-article:e4e85aead4d747faa33252f91e0188b92021-11-12T11:44:43ZVertical distribution of blue Shark (Prionace glauca) in The Indian Ocean2267-124210.1051/e3sconf/202132201009https://doaj.org/article/e4e85aead4d747faa33252f91e0188b92021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/98/e3sconf_isffs2021_01009.pdfhttps://doaj.org/toc/2267-1242Each fish species tends to choose a suitable environment suitable for its survival and reproduction horizontally and vertically. Blue shark (Prionace glauca) is the dominant catch of pelagic sharks by-catch in the Eastern Indian Ocean longline tuna fishery, with about 70% of the total sharks caught in this fisheries. This study aims to provide the information and the vertical analysis distribution of blue sharks based on temperature and depth in the Indian Ocean. The scientific observer collected 2,951 set-by-set longline fishing data based on Research Institute For Tuna Fisheries (RITF) from January 2006 to December 2018, on which the present analysis was made. The mini logger was used to measure the vertical distribution of blue sharks in the longline fisheries. This result indicated that blue shark was caught between 75.18-445.46 m depth, with 84% of which live at thermocline area (70-300 m depth), and 16% lived in underlayer area (>300 m depth). Blue sharks distributed in the underlayer area have a larger body size than those in the thermocline area with a size >180 cmFL compared to 50-170 cmFL in the thermocline area.Rochman FathurArnenda Gussasta LeviWujdi AriefKurniawan RoyEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 322, p 01009 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Rochman Fathur Arnenda Gussasta Levi Wujdi Arief Kurniawan Roy Vertical distribution of blue Shark (Prionace glauca) in The Indian Ocean
description	Each fish species tends to choose a suitable environment suitable for its survival and reproduction horizontally and vertically. Blue shark (Prionace glauca) is the dominant catch of pelagic sharks by-catch in the Eastern Indian Ocean longline tuna fishery, with about 70% of the total sharks caught in this fisheries. This study aims to provide the information and the vertical analysis distribution of blue sharks based on temperature and depth in the Indian Ocean. The scientific observer collected 2,951 set-by-set longline fishing data based on Research Institute For Tuna Fisheries (RITF) from January 2006 to December 2018, on which the present analysis was made. The mini logger was used to measure the vertical distribution of blue sharks in the longline fisheries. This result indicated that blue shark was caught between 75.18-445.46 m depth, with 84% of which live at thermocline area (70-300 m depth), and 16% lived in underlayer area (>300 m depth). Blue sharks distributed in the underlayer area have a larger body size than those in the thermocline area with a size >180 cmFL compared to 50-170 cmFL in the thermocline area.
format	article
author	Rochman Fathur Arnenda Gussasta Levi Wujdi Arief Kurniawan Roy
author_facet	Rochman Fathur Arnenda Gussasta Levi Wujdi Arief Kurniawan Roy
author_sort	Rochman Fathur
title	Vertical distribution of blue Shark (Prionace glauca) in The Indian Ocean
title_short	Vertical distribution of blue Shark (Prionace glauca) in The Indian Ocean
title_full	Vertical distribution of blue Shark (Prionace glauca) in The Indian Ocean
title_fullStr	Vertical distribution of blue Shark (Prionace glauca) in The Indian Ocean
title_full_unstemmed	Vertical distribution of blue Shark (Prionace glauca) in The Indian Ocean
title_sort	vertical distribution of blue shark (prionace glauca) in the indian ocean
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/e4e85aead4d747faa33252f91e0188b9
work_keys_str_mv	AT rochmanfathur verticaldistributionofbluesharkprionaceglaucaintheindianocean AT arnendagussastalevi verticaldistributionofbluesharkprionaceglaucaintheindianocean AT wujdiarief verticaldistributionofbluesharkprionaceglaucaintheindianocean AT kurniawanroy verticaldistributionofbluesharkprionaceglaucaintheindianocean
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Vertical distribution of blue Shark (Prionace glauca) in The Indian Ocean

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