Metabolic cost of calcification in bivalve larvae under experimental ocean acidification
Abstract Physiological increases in energy expenditure frequently occur in response to environmental stress. Although energy limitation is often invoked as a basis for decreased calcification under ocean acidification, energy-relevant measurements related to this process are scant. In this study we...
Published in: | ICES Journal of Marine Science |
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2016
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsw213 http://academic.oup.com/icesjms/article-pdf/74/4/941/31246671/fsw213.pdf |
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croxfordunivpr:10.1093/icesjms/fsw213 2024-09-15T18:03:14+00:00 Metabolic cost of calcification in bivalve larvae under experimental ocean acidification Frieder, Christina A. Applebaum, Scott L. Pan, T.-C. Francis Hedgecock, Dennis Manahan, Donal T. Browman, Howard National Science Foundation 2016 http://dx.doi.org/10.1093/icesjms/fsw213 http://academic.oup.com/icesjms/article-pdf/74/4/941/31246671/fsw213.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model ICES Journal of Marine Science volume 74, issue 4, page 941-954 ISSN 1054-3139 1095-9289 journal-article 2016 croxfordunivpr https://doi.org/10.1093/icesjms/fsw213 2024-09-03T04:08:50Z Abstract Physiological increases in energy expenditure frequently occur in response to environmental stress. Although energy limitation is often invoked as a basis for decreased calcification under ocean acidification, energy-relevant measurements related to this process are scant. In this study we focus on first-shell (prodissoconch I) formation in larvae of the Pacific oyster, Crassostrea gigas. The energy cost of calcification was empirically derived to be ≤ 1.1 µJ (ng CaCO3)−1. Regardless of the saturation state of aragonite (2.77 vs. 0.77), larvae utilize the same amount of total energy to complete first-shell formation. Even though there was a 56% reduction of shell mass and an increase in dissolution at aragonite undersaturation, first-shell formation is not energy limited because sufficient endogenous reserves are available to meet metabolic demand. Further studies were undertaken on larvae from genetic crosses of pedigreed lines to test for variance in response to aragonite undersaturation. Larval families show variation in response to ocean acidification, with loss of shell size ranging from no effect to 28%. These differences show that resilience to ocean acidification may exist among genotypes. Combined studies of bioenergetics and genetics are promising approaches for understanding climate change impacts on marine organisms that undergo calcification. Article in Journal/Newspaper Crassostrea gigas Ocean acidification Pacific oyster Oxford University Press ICES Journal of Marine Science 74 4 941 954 |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract Physiological increases in energy expenditure frequently occur in response to environmental stress. Although energy limitation is often invoked as a basis for decreased calcification under ocean acidification, energy-relevant measurements related to this process are scant. In this study we focus on first-shell (prodissoconch I) formation in larvae of the Pacific oyster, Crassostrea gigas. The energy cost of calcification was empirically derived to be ≤ 1.1 µJ (ng CaCO3)−1. Regardless of the saturation state of aragonite (2.77 vs. 0.77), larvae utilize the same amount of total energy to complete first-shell formation. Even though there was a 56% reduction of shell mass and an increase in dissolution at aragonite undersaturation, first-shell formation is not energy limited because sufficient endogenous reserves are available to meet metabolic demand. Further studies were undertaken on larvae from genetic crosses of pedigreed lines to test for variance in response to aragonite undersaturation. Larval families show variation in response to ocean acidification, with loss of shell size ranging from no effect to 28%. These differences show that resilience to ocean acidification may exist among genotypes. Combined studies of bioenergetics and genetics are promising approaches for understanding climate change impacts on marine organisms that undergo calcification. |
author2 |
Browman, Howard National Science Foundation |
format |
Article in Journal/Newspaper |
author |
Frieder, Christina A. Applebaum, Scott L. Pan, T.-C. Francis Hedgecock, Dennis Manahan, Donal T. |
spellingShingle |
Frieder, Christina A. Applebaum, Scott L. Pan, T.-C. Francis Hedgecock, Dennis Manahan, Donal T. Metabolic cost of calcification in bivalve larvae under experimental ocean acidification |
author_facet |
Frieder, Christina A. Applebaum, Scott L. Pan, T.-C. Francis Hedgecock, Dennis Manahan, Donal T. |
author_sort |
Frieder, Christina A. |
title |
Metabolic cost of calcification in bivalve larvae under experimental ocean acidification |
title_short |
Metabolic cost of calcification in bivalve larvae under experimental ocean acidification |
title_full |
Metabolic cost of calcification in bivalve larvae under experimental ocean acidification |
title_fullStr |
Metabolic cost of calcification in bivalve larvae under experimental ocean acidification |
title_full_unstemmed |
Metabolic cost of calcification in bivalve larvae under experimental ocean acidification |
title_sort |
metabolic cost of calcification in bivalve larvae under experimental ocean acidification |
publisher |
Oxford University Press (OUP) |
publishDate |
2016 |
url |
http://dx.doi.org/10.1093/icesjms/fsw213 http://academic.oup.com/icesjms/article-pdf/74/4/941/31246671/fsw213.pdf |
genre |
Crassostrea gigas Ocean acidification Pacific oyster |
genre_facet |
Crassostrea gigas Ocean acidification Pacific oyster |
op_source |
ICES Journal of Marine Science volume 74, issue 4, page 941-954 ISSN 1054-3139 1095-9289 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/icesjms/fsw213 |
container_title |
ICES Journal of Marine Science |
container_volume |
74 |
container_issue |
4 |
container_start_page |
941 |
op_container_end_page |
954 |
_version_ |
1810440751483453440 |