Otolith shape as a tool for representing different growth in young and adult yellowfin tuna (Thunnus albacares, Bonnaterre, 1788)

The stock status of yellowfin tuna (Thunnus albacares) (YFT) in the Indian Ocean is currently concluded overfished and is subject to overfishing. The information about the YFT population structure is fundamental for effective fisheries management and conservation. The otolith shape as a tool for est...

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Autores principales:	Sulistyaningsih Ririk Kartika, Setyadji Bram, Hartaty Hety, Wujdi Arief
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/ef42f2eb5d1d44f0b78e65791a18e0f1
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spelling	oai:doaj.org-article:ef42f2eb5d1d44f0b78e65791a18e0f12021-11-12T11:44:43ZOtolith shape as a tool for representing different growth in young and adult yellowfin tuna (Thunnus albacares, Bonnaterre, 1788)2267-124210.1051/e3sconf/202132205011https://doaj.org/article/ef42f2eb5d1d44f0b78e65791a18e0f12021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/98/e3sconf_isffs2021_05011.pdfhttps://doaj.org/toc/2267-1242The stock status of yellowfin tuna (Thunnus albacares) (YFT) in the Indian Ocean is currently concluded overfished and is subject to overfishing. The information about the YFT population structure is fundamental for effective fisheries management and conservation. The otolith shape as a tool for estimating population structure is the cheapest technique compared to other methods, such as genetic, parasite, and otolith chemistry, especially for analyzing the large samples. This study investigates the use of otolith shapes to determine the yellowfin stock from two different locations. Data collection was carried out at two locations, namely Kedonganan and Benoa, throughout 2018. Total samples collected from the two study sites were 314 otoliths, but only 147 whole otoliths could be analyzed. Image analysis was performed using ANOVA-like permutation (n=1000 to determine whether the individual can be reclassified to their sample origin. The subsequent analysis is the variations in the shape of the otolith with multivariate statistical methods using cluster analysis with Canonical Analysis of Principal Coordinates. The result shows that the YFT otolith Benoa is significantly different from the YFT otolith Kedonganan with the P-value = 0.0015.Sulistyaningsih Ririk KartikaSetyadji BramHartaty HetyWujdi AriefEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 322, p 05011 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Sulistyaningsih Ririk Kartika Setyadji Bram Hartaty Hety Wujdi Arief Otolith shape as a tool for representing different growth in young and adult yellowfin tuna (Thunnus albacares, Bonnaterre, 1788)
description	The stock status of yellowfin tuna (Thunnus albacares) (YFT) in the Indian Ocean is currently concluded overfished and is subject to overfishing. The information about the YFT population structure is fundamental for effective fisheries management and conservation. The otolith shape as a tool for estimating population structure is the cheapest technique compared to other methods, such as genetic, parasite, and otolith chemistry, especially for analyzing the large samples. This study investigates the use of otolith shapes to determine the yellowfin stock from two different locations. Data collection was carried out at two locations, namely Kedonganan and Benoa, throughout 2018. Total samples collected from the two study sites were 314 otoliths, but only 147 whole otoliths could be analyzed. Image analysis was performed using ANOVA-like permutation (n=1000 to determine whether the individual can be reclassified to their sample origin. The subsequent analysis is the variations in the shape of the otolith with multivariate statistical methods using cluster analysis with Canonical Analysis of Principal Coordinates. The result shows that the YFT otolith Benoa is significantly different from the YFT otolith Kedonganan with the P-value = 0.0015.
format	article
author	Sulistyaningsih Ririk Kartika Setyadji Bram Hartaty Hety Wujdi Arief
author_facet	Sulistyaningsih Ririk Kartika Setyadji Bram Hartaty Hety Wujdi Arief
author_sort	Sulistyaningsih Ririk Kartika
title	Otolith shape as a tool for representing different growth in young and adult yellowfin tuna (Thunnus albacares, Bonnaterre, 1788)
title_short	Otolith shape as a tool for representing different growth in young and adult yellowfin tuna (Thunnus albacares, Bonnaterre, 1788)
title_full	Otolith shape as a tool for representing different growth in young and adult yellowfin tuna (Thunnus albacares, Bonnaterre, 1788)
title_fullStr	Otolith shape as a tool for representing different growth in young and adult yellowfin tuna (Thunnus albacares, Bonnaterre, 1788)
title_full_unstemmed	Otolith shape as a tool for representing different growth in young and adult yellowfin tuna (Thunnus albacares, Bonnaterre, 1788)
title_sort	otolith shape as a tool for representing different growth in young and adult yellowfin tuna (thunnus albacares, bonnaterre, 1788)
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/ef42f2eb5d1d44f0b78e65791a18e0f1
work_keys_str_mv	AT sulistyaningsihririkkartika otolithshapeasatoolforrepresentingdifferentgrowthinyoungandadultyellowfintunathunnusalbacaresbonnaterre1788 AT setyadjibram otolithshapeasatoolforrepresentingdifferentgrowthinyoungandadultyellowfintunathunnusalbacaresbonnaterre1788 AT hartatyhety otolithshapeasatoolforrepresentingdifferentgrowthinyoungandadultyellowfintunathunnusalbacaresbonnaterre1788 AT wujdiarief otolithshapeasatoolforrepresentingdifferentgrowthinyoungandadultyellowfintunathunnusalbacaresbonnaterre1788
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Otolith shape as a tool for representing different growth in young and adult yellowfin tuna (Thunnus albacares, Bonnaterre, 1788)

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