The reproductive potential of yellowfin tuna (Thunnus albacares Bonnaterre, 1788) caught in the eastern part of the Indian Ocean

Knowledge of reproduction biology provides valuable information to better understanding population dynamics, including a population's resilience to fishing. The yellowfin tuna reproductive biology in the eastern Indian Ocean was studied by analyzing some essential characteristics: size at matur...

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Autores principales:	Hartaty Hety, Setyadji Bram, Wujdi Arief, Sulistyaningsih Ririk K.
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/f9ec3ff0afa94fa8aa60b35af27a8ea0
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spelling	oai:doaj.org-article:f9ec3ff0afa94fa8aa60b35af27a8ea02021-11-12T11:44:43ZThe reproductive potential of yellowfin tuna (Thunnus albacares Bonnaterre, 1788) caught in the eastern part of the Indian Ocean2267-124210.1051/e3sconf/202132201014https://doaj.org/article/f9ec3ff0afa94fa8aa60b35af27a8ea02021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/98/e3sconf_isffs2021_01014.pdfhttps://doaj.org/toc/2267-1242Knowledge of reproduction biology provides valuable information to better understanding population dynamics, including a population's resilience to fishing. The yellowfin tuna reproductive biology in the eastern Indian Ocean was studied by analyzing some essential characteristics: size at maturity, the spawning season, frequency of spawning, egg diameter, and batch fecundity. From 2018 to 2020, 206 female yellowfin tuna were sampled (23-170 cmFL). They were using histological and morphological analysis, resulting in the size at maturity (Lm50) of yellowfin tuna being 92.73 cmFL. The spawning season of yellowfin tuna occurred between September and May, spawning every 1.55 days within the spawning period. The oocytes size ranged between 27.1 – 570.5 μm, and the mean size of oocytes (mean ± standard deviation) was 189.5±129.4 μm. The mean batch fecundity was 3.1±1.7 million oocytes, and the mean relative batch was 82.4±38.4 oocytes gram-1 of GGT weight. The uncertainties in current yellowfin stock assessment models can be reduced by providing complete information on the reproductive traits in the region to achieve a sustainable fishery.Hartaty HetySetyadji BramWujdi AriefSulistyaningsih Ririk K.EDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 322, p 01014 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Hartaty Hety Setyadji Bram Wujdi Arief Sulistyaningsih Ririk K. The reproductive potential of yellowfin tuna (Thunnus albacares Bonnaterre, 1788) caught in the eastern part of the Indian Ocean
description	Knowledge of reproduction biology provides valuable information to better understanding population dynamics, including a population's resilience to fishing. The yellowfin tuna reproductive biology in the eastern Indian Ocean was studied by analyzing some essential characteristics: size at maturity, the spawning season, frequency of spawning, egg diameter, and batch fecundity. From 2018 to 2020, 206 female yellowfin tuna were sampled (23-170 cmFL). They were using histological and morphological analysis, resulting in the size at maturity (Lm50) of yellowfin tuna being 92.73 cmFL. The spawning season of yellowfin tuna occurred between September and May, spawning every 1.55 days within the spawning period. The oocytes size ranged between 27.1 – 570.5 μm, and the mean size of oocytes (mean ± standard deviation) was 189.5±129.4 μm. The mean batch fecundity was 3.1±1.7 million oocytes, and the mean relative batch was 82.4±38.4 oocytes gram-1 of GGT weight. The uncertainties in current yellowfin stock assessment models can be reduced by providing complete information on the reproductive traits in the region to achieve a sustainable fishery.
format	article
author	Hartaty Hety Setyadji Bram Wujdi Arief Sulistyaningsih Ririk K.
author_facet	Hartaty Hety Setyadji Bram Wujdi Arief Sulistyaningsih Ririk K.
author_sort	Hartaty Hety
title	The reproductive potential of yellowfin tuna (Thunnus albacares Bonnaterre, 1788) caught in the eastern part of the Indian Ocean
title_short	The reproductive potential of yellowfin tuna (Thunnus albacares Bonnaterre, 1788) caught in the eastern part of the Indian Ocean
title_full	The reproductive potential of yellowfin tuna (Thunnus albacares Bonnaterre, 1788) caught in the eastern part of the Indian Ocean
title_fullStr	The reproductive potential of yellowfin tuna (Thunnus albacares Bonnaterre, 1788) caught in the eastern part of the Indian Ocean
title_full_unstemmed	The reproductive potential of yellowfin tuna (Thunnus albacares Bonnaterre, 1788) caught in the eastern part of the Indian Ocean
title_sort	reproductive potential of yellowfin tuna (thunnus albacares bonnaterre, 1788) caught in the eastern part of the indian ocean
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/f9ec3ff0afa94fa8aa60b35af27a8ea0
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The reproductive potential of yellowfin tuna (Thunnus albacares Bonnaterre, 1788) caught in the eastern part of the Indian Ocean

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