Influence of ontogenetic development, temperature, and pCO2 on otolith calcium carbonate polymorph composition in sturgeons

Abstract Changes to calcium carbonate (CaCO3) biomineralization in aquatic organisms is among the many predicted effects of climate change. Because otolith (hearing/orientation structures in fish) CaCO3 precipitation and polymorph composition are controlled by genetic and environmental factors, clim...

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Autores principales:	Alison R. Loeppky, Luke D. Belding, Alex R. Quijada-Rodriguez, John D. Morgan, Brenda M. Pracheil, Bryan C. Chakoumakos, W. Gary Anderson
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/031d28fde53640eb9101e0c786f6d49e
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spelling	oai:doaj.org-article:031d28fde53640eb9101e0c786f6d49e2021-12-02T16:14:46ZInfluence of ontogenetic development, temperature, and pCO2 on otolith calcium carbonate polymorph composition in sturgeons10.1038/s41598-021-93197-62045-2322https://doaj.org/article/031d28fde53640eb9101e0c786f6d49e2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93197-6https://doaj.org/toc/2045-2322Abstract Changes to calcium carbonate (CaCO3) biomineralization in aquatic organisms is among the many predicted effects of climate change. Because otolith (hearing/orientation structures in fish) CaCO3 precipitation and polymorph composition are controlled by genetic and environmental factors, climate change may be predicted to affect the phenotypic plasticity of otoliths. We examined precipitation of otolith polymorphs (aragonite, vaterite, calcite) during early life history in two species of sturgeon, Lake Sturgeon, (Acipenser fulvescens) and White Sturgeon (A. transmontanus), using quantitative X-ray microdiffraction. Both species showed similar fluctuations in otolith polymorphs with a significant shift in the proportions of vaterite and aragonite in sagittal otoliths coinciding with the transition to fully exogenous feeding. We also examined the effect of the environment on otolith morphology and polymorph composition during early life history in Lake Sturgeon larvae reared in varying temperature (16/22 °C) and pCO2 (1000/2500 µatm) environments for 5 months. Fish raised in elevated temperature had significantly increased otolith size and precipitation of large single calcite crystals. Interestingly, pCO2 had no statistically significant effect on size or polymorph composition of otoliths despite blood pH exhibiting a mild alkalosis, which is contrary to what has been observed in several studies on marine fishes. These results suggest climate change may influence otolith polymorph composition during early life history in Lake Sturgeon.Alison R. LoeppkyLuke D. BeldingAlex R. Quijada-RodriguezJohn D. MorganBrenda M. PracheilBryan C. ChakoumakosW. Gary AndersonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Alison R. Loeppky Luke D. Belding Alex R. Quijada-Rodriguez John D. Morgan Brenda M. Pracheil Bryan C. Chakoumakos W. Gary Anderson Influence of ontogenetic development, temperature, and pCO2 on otolith calcium carbonate polymorph composition in sturgeons
description	Abstract Changes to calcium carbonate (CaCO3) biomineralization in aquatic organisms is among the many predicted effects of climate change. Because otolith (hearing/orientation structures in fish) CaCO3 precipitation and polymorph composition are controlled by genetic and environmental factors, climate change may be predicted to affect the phenotypic plasticity of otoliths. We examined precipitation of otolith polymorphs (aragonite, vaterite, calcite) during early life history in two species of sturgeon, Lake Sturgeon, (Acipenser fulvescens) and White Sturgeon (A. transmontanus), using quantitative X-ray microdiffraction. Both species showed similar fluctuations in otolith polymorphs with a significant shift in the proportions of vaterite and aragonite in sagittal otoliths coinciding with the transition to fully exogenous feeding. We also examined the effect of the environment on otolith morphology and polymorph composition during early life history in Lake Sturgeon larvae reared in varying temperature (16/22 °C) and pCO2 (1000/2500 µatm) environments for 5 months. Fish raised in elevated temperature had significantly increased otolith size and precipitation of large single calcite crystals. Interestingly, pCO2 had no statistically significant effect on size or polymorph composition of otoliths despite blood pH exhibiting a mild alkalosis, which is contrary to what has been observed in several studies on marine fishes. These results suggest climate change may influence otolith polymorph composition during early life history in Lake Sturgeon.
format	article
author	Alison R. Loeppky Luke D. Belding Alex R. Quijada-Rodriguez John D. Morgan Brenda M. Pracheil Bryan C. Chakoumakos W. Gary Anderson
author_facet	Alison R. Loeppky Luke D. Belding Alex R. Quijada-Rodriguez John D. Morgan Brenda M. Pracheil Bryan C. Chakoumakos W. Gary Anderson
author_sort	Alison R. Loeppky
title	Influence of ontogenetic development, temperature, and pCO2 on otolith calcium carbonate polymorph composition in sturgeons
title_short	Influence of ontogenetic development, temperature, and pCO2 on otolith calcium carbonate polymorph composition in sturgeons
title_full	Influence of ontogenetic development, temperature, and pCO2 on otolith calcium carbonate polymorph composition in sturgeons
title_fullStr	Influence of ontogenetic development, temperature, and pCO2 on otolith calcium carbonate polymorph composition in sturgeons
title_full_unstemmed	Influence of ontogenetic development, temperature, and pCO2 on otolith calcium carbonate polymorph composition in sturgeons
title_sort	influence of ontogenetic development, temperature, and pco2 on otolith calcium carbonate polymorph composition in sturgeons
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/031d28fde53640eb9101e0c786f6d49e
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_version_	1718384271755837440

Influence of ontogenetic development, temperature, and pCO2 on otolith calcium carbonate polymorph composition in sturgeons

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