Overwinter Changes in the Lipid Profile of Young-of-the-Year Striped Bass (<i>Morone saxatilis</i>) in Freshwater Ponds

Young-of-the-year (YOY) striped bass (<i>Morone saxatilis</i>) suffer significant mortality during their first winter. While causes of this mortality are unclear, lipids may play role in adapting to winter stresses, including thermal change and food scarcity. To address this, YOY striped...

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Autores principales:	Kare A. Tonning, Suzanne M. Budge, Peter Tyedmers
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	thermal acclimation endogenous reserves phospholipid <i>Morone saxatilis</i> Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/4e2b6bcd5ef84595bb7120e1ba43e884
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spelling	oai:doaj.org-article:4e2b6bcd5ef84595bb7120e1ba43e8842021-11-25T16:53:44ZOverwinter Changes in the Lipid Profile of Young-of-the-Year Striped Bass (<i>Morone saxatilis</i>) in Freshwater Ponds10.3390/biom111116782218-273Xhttps://doaj.org/article/4e2b6bcd5ef84595bb7120e1ba43e8842021-11-01T00:00:00Zhttps://www.mdpi.com/2218-273X/11/11/1678https://doaj.org/toc/2218-273XYoung-of-the-year (YOY) striped bass (<i>Morone saxatilis</i>) suffer significant mortality during their first winter. While causes of this mortality are unclear, lipids may play role in adapting to winter stresses, including thermal change and food scarcity. To address this, YOY striped bass were placed in mesh cages in freshwater ponds in the fall (November) and were held until the end of winter, in March. Liver and white muscle tissue were sampled at the beginning and end of the study to compare concentrations of specific lipid classes and fatty acid composition. Muscle-tissue total lipid and triacylglycerol (TAG) was higher in March (late winter) samples. Additionally, concentrations of phosphatidylethanolamine (PE) were higher in the white muscle of striped bass sampled in March; this was accompanied by a decrease in proportions of 18:0 and 22:6n-3 in PE (from ~11 to 7% and 36 to 28%, respectively) and 18:1n-9 and 22:6n-3 in phosphatidylcholine (from ~15 to 10% and 24 to 18%, respectively). This suggests that these fish were not utilizing energy reserves in previously described ways and appear to rely more on other lipid classes or body tissues for overwinter survival than those analyzed in this study.Kare A. TonningSuzanne M. BudgePeter TyedmersMDPI AGarticlethermal acclimationendogenous reservesphospholipid<i>Morone saxatilis</i>MicrobiologyQR1-502ENBiomolecules, Vol 11, Iss 1678, p 1678 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	thermal acclimation endogenous reserves phospholipid <i>Morone saxatilis</i> Microbiology QR1-502
spellingShingle	thermal acclimation endogenous reserves phospholipid <i>Morone saxatilis</i> Microbiology QR1-502 Kare A. Tonning Suzanne M. Budge Peter Tyedmers Overwinter Changes in the Lipid Profile of Young-of-the-Year Striped Bass (<i>Morone saxatilis</i>) in Freshwater Ponds
description	Young-of-the-year (YOY) striped bass (<i>Morone saxatilis</i>) suffer significant mortality during their first winter. While causes of this mortality are unclear, lipids may play role in adapting to winter stresses, including thermal change and food scarcity. To address this, YOY striped bass were placed in mesh cages in freshwater ponds in the fall (November) and were held until the end of winter, in March. Liver and white muscle tissue were sampled at the beginning and end of the study to compare concentrations of specific lipid classes and fatty acid composition. Muscle-tissue total lipid and triacylglycerol (TAG) was higher in March (late winter) samples. Additionally, concentrations of phosphatidylethanolamine (PE) were higher in the white muscle of striped bass sampled in March; this was accompanied by a decrease in proportions of 18:0 and 22:6n-3 in PE (from ~11 to 7% and 36 to 28%, respectively) and 18:1n-9 and 22:6n-3 in phosphatidylcholine (from ~15 to 10% and 24 to 18%, respectively). This suggests that these fish were not utilizing energy reserves in previously described ways and appear to rely more on other lipid classes or body tissues for overwinter survival than those analyzed in this study.
format	article
author	Kare A. Tonning Suzanne M. Budge Peter Tyedmers
author_facet	Kare A. Tonning Suzanne M. Budge Peter Tyedmers
author_sort	Kare A. Tonning
title	Overwinter Changes in the Lipid Profile of Young-of-the-Year Striped Bass (<i>Morone saxatilis</i>) in Freshwater Ponds
title_short	Overwinter Changes in the Lipid Profile of Young-of-the-Year Striped Bass (<i>Morone saxatilis</i>) in Freshwater Ponds
title_full	Overwinter Changes in the Lipid Profile of Young-of-the-Year Striped Bass (<i>Morone saxatilis</i>) in Freshwater Ponds
title_fullStr	Overwinter Changes in the Lipid Profile of Young-of-the-Year Striped Bass (<i>Morone saxatilis</i>) in Freshwater Ponds
title_full_unstemmed	Overwinter Changes in the Lipid Profile of Young-of-the-Year Striped Bass (<i>Morone saxatilis</i>) in Freshwater Ponds
title_sort	overwinter changes in the lipid profile of young-of-the-year striped bass (<i>morone saxatilis</i>) in freshwater ponds
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/4e2b6bcd5ef84595bb7120e1ba43e884
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Overwinter Changes in the Lipid Profile of Young-of-the-Year Striped Bass (<i>Morone saxatilis</i>) in Freshwater Ponds

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