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Effects of CO(2)-induced pH reduction on the exoskeleton structure and biophotonic properties of the shrimp Lysmata californica
The anticipated effects of CO(2)-induced ocean acidification on marine calcifiers are generally negative, and include dissolution of calcified elements and reduced calcification rates. Such negative effects are not typical of crustaceans for which comparatively little ocean acidification research ha...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4450593/ https://www.ncbi.nlm.nih.gov/pubmed/26030212 http://dx.doi.org/10.1038/srep10608 |
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author | Taylor, Jennifer R. A. Gilleard, Jasmine M. Allen, Michael C. Deheyn, Dimitri D. |
author_facet | Taylor, Jennifer R. A. Gilleard, Jasmine M. Allen, Michael C. Deheyn, Dimitri D. |
author_sort | Taylor, Jennifer R. A. |
collection | PubMed |
description | The anticipated effects of CO(2)-induced ocean acidification on marine calcifiers are generally negative, and include dissolution of calcified elements and reduced calcification rates. Such negative effects are not typical of crustaceans for which comparatively little ocean acidification research has been conducted. Crustaceans, however, depend on their calcified exoskeleton for many critical functions. Here, we conducted a short-term study on a common caridean shrimp, Lysmata californica, to determine the effect of CO(2)-driven reduction in seawater pH on exoskeleton growth, structure, and mineralization and animal cryptic coloration. Shrimp exposed to ambient (7.99 ± 0.04) and reduced pH (7.53 ± 0.06) for 21 days showed no differences in exoskeleton growth (percent increase in carapace length), but the calcium weight percent of their cuticle increased significantly in reduced pH conditions, resulting in a greater Ca:Mg ratio. Cuticle thickness did not change, indicating an increase in the mineral to matrix ratio, which may have mechanical consequences for exoskeleton function. Furthermore, there was a 5-fold decrease in animal transparency, but no change in overall shrimp coloration (red). These results suggest that even short-term exposure to CO(2)-induced pH reduction can significantly affect exoskeleton mineralization and shrimp biophotonics, with potential impacts on crypsis, physical defense, and predator avoidance. |
format | Online Article Text |
id | pubmed-4450593 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-44505932015-06-10 Effects of CO(2)-induced pH reduction on the exoskeleton structure and biophotonic properties of the shrimp Lysmata californica Taylor, Jennifer R. A. Gilleard, Jasmine M. Allen, Michael C. Deheyn, Dimitri D. Sci Rep Article The anticipated effects of CO(2)-induced ocean acidification on marine calcifiers are generally negative, and include dissolution of calcified elements and reduced calcification rates. Such negative effects are not typical of crustaceans for which comparatively little ocean acidification research has been conducted. Crustaceans, however, depend on their calcified exoskeleton for many critical functions. Here, we conducted a short-term study on a common caridean shrimp, Lysmata californica, to determine the effect of CO(2)-driven reduction in seawater pH on exoskeleton growth, structure, and mineralization and animal cryptic coloration. Shrimp exposed to ambient (7.99 ± 0.04) and reduced pH (7.53 ± 0.06) for 21 days showed no differences in exoskeleton growth (percent increase in carapace length), but the calcium weight percent of their cuticle increased significantly in reduced pH conditions, resulting in a greater Ca:Mg ratio. Cuticle thickness did not change, indicating an increase in the mineral to matrix ratio, which may have mechanical consequences for exoskeleton function. Furthermore, there was a 5-fold decrease in animal transparency, but no change in overall shrimp coloration (red). These results suggest that even short-term exposure to CO(2)-induced pH reduction can significantly affect exoskeleton mineralization and shrimp biophotonics, with potential impacts on crypsis, physical defense, and predator avoidance. Nature Publishing Group 2015-06-01 /pmc/articles/PMC4450593/ /pubmed/26030212 http://dx.doi.org/10.1038/srep10608 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Taylor, Jennifer R. A. Gilleard, Jasmine M. Allen, Michael C. Deheyn, Dimitri D. Effects of CO(2)-induced pH reduction on the exoskeleton structure and biophotonic properties of the shrimp Lysmata californica |
title | Effects of CO(2)-induced pH reduction on the exoskeleton structure and biophotonic properties of the shrimp Lysmata californica |
title_full | Effects of CO(2)-induced pH reduction on the exoskeleton structure and biophotonic properties of the shrimp Lysmata californica |
title_fullStr | Effects of CO(2)-induced pH reduction on the exoskeleton structure and biophotonic properties of the shrimp Lysmata californica |
title_full_unstemmed | Effects of CO(2)-induced pH reduction on the exoskeleton structure and biophotonic properties of the shrimp Lysmata californica |
title_short | Effects of CO(2)-induced pH reduction on the exoskeleton structure and biophotonic properties of the shrimp Lysmata californica |
title_sort | effects of co(2)-induced ph reduction on the exoskeleton structure and biophotonic properties of the shrimp lysmata californica |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4450593/ https://www.ncbi.nlm.nih.gov/pubmed/26030212 http://dx.doi.org/10.1038/srep10608 |
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