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Diel and tidal pCO(2) × O(2) fluctuations provide physiological refuge to early life stages of a coastal forage fish

Coastal ecosystems experience substantial natural fluctuations in pCO(2) and dissolved oxygen (DO) conditions on diel, tidal, seasonal and interannual timescales. Rising carbon dioxide emissions and anthropogenic nutrient input are expected to increase these pCO(2) and DO cycles in severity and dura...

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Autores principales: Cross, Emma L., Murray, Christopher S., Baumann, Hannes
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6890771/
https://www.ncbi.nlm.nih.gov/pubmed/31796762
http://dx.doi.org/10.1038/s41598-019-53930-8
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author Cross, Emma L.
Murray, Christopher S.
Baumann, Hannes
author_facet Cross, Emma L.
Murray, Christopher S.
Baumann, Hannes
author_sort Cross, Emma L.
collection PubMed
description Coastal ecosystems experience substantial natural fluctuations in pCO(2) and dissolved oxygen (DO) conditions on diel, tidal, seasonal and interannual timescales. Rising carbon dioxide emissions and anthropogenic nutrient input are expected to increase these pCO(2) and DO cycles in severity and duration of acidification and hypoxia. How coastal marine organisms respond to natural pCO(2) × DO variability and future climate change remains largely unknown. Here, we assess the impact of static and cycling pCO(2) × DO conditions of various magnitudes and frequencies on early life survival and growth of an important coastal forage fish, Menidia menidia. Static low DO conditions severely decreased embryo survival, larval survival, time to 50% hatch, size at hatch and post-larval growth rates. Static elevated pCO(2) did not affect most response traits, however, a synergistic negative effect did occur on embryo survival under hypoxic conditions (3.0 mg L(−1)). Cycling pCO(2) × DO, however, reduced these negative effects of static conditions on all response traits with the magnitude of fluctuations influencing the extent of this reduction. This indicates that fluctuations in pCO(2) and DO may benefit coastal organisms by providing periodic physiological refuge from stressful conditions, which could promote species adaptability to climate change.
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spelling pubmed-68907712019-12-10 Diel and tidal pCO(2) × O(2) fluctuations provide physiological refuge to early life stages of a coastal forage fish Cross, Emma L. Murray, Christopher S. Baumann, Hannes Sci Rep Article Coastal ecosystems experience substantial natural fluctuations in pCO(2) and dissolved oxygen (DO) conditions on diel, tidal, seasonal and interannual timescales. Rising carbon dioxide emissions and anthropogenic nutrient input are expected to increase these pCO(2) and DO cycles in severity and duration of acidification and hypoxia. How coastal marine organisms respond to natural pCO(2) × DO variability and future climate change remains largely unknown. Here, we assess the impact of static and cycling pCO(2) × DO conditions of various magnitudes and frequencies on early life survival and growth of an important coastal forage fish, Menidia menidia. Static low DO conditions severely decreased embryo survival, larval survival, time to 50% hatch, size at hatch and post-larval growth rates. Static elevated pCO(2) did not affect most response traits, however, a synergistic negative effect did occur on embryo survival under hypoxic conditions (3.0 mg L(−1)). Cycling pCO(2) × DO, however, reduced these negative effects of static conditions on all response traits with the magnitude of fluctuations influencing the extent of this reduction. This indicates that fluctuations in pCO(2) and DO may benefit coastal organisms by providing periodic physiological refuge from stressful conditions, which could promote species adaptability to climate change. Nature Publishing Group UK 2019-12-03 /pmc/articles/PMC6890771/ /pubmed/31796762 http://dx.doi.org/10.1038/s41598-019-53930-8 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Cross, Emma L.
Murray, Christopher S.
Baumann, Hannes
Diel and tidal pCO(2) × O(2) fluctuations provide physiological refuge to early life stages of a coastal forage fish
title Diel and tidal pCO(2) × O(2) fluctuations provide physiological refuge to early life stages of a coastal forage fish
title_full Diel and tidal pCO(2) × O(2) fluctuations provide physiological refuge to early life stages of a coastal forage fish
title_fullStr Diel and tidal pCO(2) × O(2) fluctuations provide physiological refuge to early life stages of a coastal forage fish
title_full_unstemmed Diel and tidal pCO(2) × O(2) fluctuations provide physiological refuge to early life stages of a coastal forage fish
title_short Diel and tidal pCO(2) × O(2) fluctuations provide physiological refuge to early life stages of a coastal forage fish
title_sort diel and tidal pco(2) × o(2) fluctuations provide physiological refuge to early life stages of a coastal forage fish
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6890771/
https://www.ncbi.nlm.nih.gov/pubmed/31796762
http://dx.doi.org/10.1038/s41598-019-53930-8
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