Ocean acidification promotes otolith growth and calcite deposition in gilthead sea bream (Sparus aurata) larvae

Abstract The effects of ocean acidification on otolith crystallization and growth rates were investigated in gilthead sea bream (Sparus aurata) larvae. Larvae were exposed to three different pH levels: pH8.2, pH7.7 and pH7.3 for a period of 18 days post-fertilization. For the first time, we demonstr...

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Autores principales:	Clara Coll-Lladó, Jan Giebichenstein, Paul B. Webb, Christopher R. Bridges, Daniel Garcia de la serrana
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/adcfe934db144af288951078268248ac
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spelling	oai:doaj.org-article:adcfe934db144af288951078268248ac2021-12-02T15:09:10ZOcean acidification promotes otolith growth and calcite deposition in gilthead sea bream (Sparus aurata) larvae10.1038/s41598-018-26026-y2045-2322https://doaj.org/article/adcfe934db144af288951078268248ac2018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-26026-yhttps://doaj.org/toc/2045-2322Abstract The effects of ocean acidification on otolith crystallization and growth rates were investigated in gilthead sea bream (Sparus aurata) larvae. Larvae were exposed to three different pH levels: pH8.2, pH7.7 and pH7.3 for a period of 18 days post-fertilization. For the first time, we demonstrate that pH has a significant impact on the carbonate polymorph composition, showing calcite in a significant percentage of individuals at low pH. Around 21% of the larvae exposed to pH7.3 showed irregular calcitic otoliths rather than commonly found round aragonitic otoliths. Calcitic otoliths showed a moderate level of heritability suggesting an important role of genetic factors. We also observed significantly larger otoliths in larvae reared at pH7.7 and pH7.3 compared to pH8.2 in both sagittae and lapilli. Our results demonstrate that otolith growth rates in gilthead sea bream larvae increase at low pH while a significant proportion of larvae are prone to the formation of calcitic otoliths at pH7.3.Clara Coll-LladóJan GiebichensteinPaul B. WebbChristopher R. BridgesDaniel Garcia de la serranaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-10 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Clara Coll-Lladó Jan Giebichenstein Paul B. Webb Christopher R. Bridges Daniel Garcia de la serrana Ocean acidification promotes otolith growth and calcite deposition in gilthead sea bream (Sparus aurata) larvae
description	Abstract The effects of ocean acidification on otolith crystallization and growth rates were investigated in gilthead sea bream (Sparus aurata) larvae. Larvae were exposed to three different pH levels: pH8.2, pH7.7 and pH7.3 for a period of 18 days post-fertilization. For the first time, we demonstrate that pH has a significant impact on the carbonate polymorph composition, showing calcite in a significant percentage of individuals at low pH. Around 21% of the larvae exposed to pH7.3 showed irregular calcitic otoliths rather than commonly found round aragonitic otoliths. Calcitic otoliths showed a moderate level of heritability suggesting an important role of genetic factors. We also observed significantly larger otoliths in larvae reared at pH7.7 and pH7.3 compared to pH8.2 in both sagittae and lapilli. Our results demonstrate that otolith growth rates in gilthead sea bream larvae increase at low pH while a significant proportion of larvae are prone to the formation of calcitic otoliths at pH7.3.
format	article
author	Clara Coll-Lladó Jan Giebichenstein Paul B. Webb Christopher R. Bridges Daniel Garcia de la serrana
author_facet	Clara Coll-Lladó Jan Giebichenstein Paul B. Webb Christopher R. Bridges Daniel Garcia de la serrana
author_sort	Clara Coll-Lladó
title	Ocean acidification promotes otolith growth and calcite deposition in gilthead sea bream (Sparus aurata) larvae
title_short	Ocean acidification promotes otolith growth and calcite deposition in gilthead sea bream (Sparus aurata) larvae
title_full	Ocean acidification promotes otolith growth and calcite deposition in gilthead sea bream (Sparus aurata) larvae
title_fullStr	Ocean acidification promotes otolith growth and calcite deposition in gilthead sea bream (Sparus aurata) larvae
title_full_unstemmed	Ocean acidification promotes otolith growth and calcite deposition in gilthead sea bream (Sparus aurata) larvae
title_sort	ocean acidification promotes otolith growth and calcite deposition in gilthead sea bream (sparus aurata) larvae
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/adcfe934db144af288951078268248ac
work_keys_str_mv	AT claracollllado oceanacidificationpromotesotolithgrowthandcalcitedepositioningiltheadseabreamsparusauratalarvae AT jangiebichenstein oceanacidificationpromotesotolithgrowthandcalcitedepositioningiltheadseabreamsparusauratalarvae AT paulbwebb oceanacidificationpromotesotolithgrowthandcalcitedepositioningiltheadseabreamsparusauratalarvae AT christopherrbridges oceanacidificationpromotesotolithgrowthandcalcitedepositioningiltheadseabreamsparusauratalarvae AT danielgarciadelaserrana oceanacidificationpromotesotolithgrowthandcalcitedepositioningiltheadseabreamsparusauratalarvae
_version_	1718387895596744704

Ocean acidification promotes otolith growth and calcite deposition in gilthead sea bream (Sparus aurata) larvae

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