Table_1_Ocean Acidification Mitigates the Negative Effects of Increased Sea Temperatures on the Biomineralization and Crystalline Ultrastructure of Mytilus.docx
Negative impacts of global climate change are predicted for a range of taxa. Projections predict marked increases in sea surface temperatures and ocean acidification (OA), arguably placing calcifying organisms at most risk. While detrimental impacts of environmental change on the growth and ultrastr...
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ftfrontimediafig:oai:figshare.com:article/13064807 2023-05-15T17:50:52+02:00 Table_1_Ocean Acidification Mitigates the Negative Effects of Increased Sea Temperatures on the Biomineralization and Crystalline Ultrastructure of Mytilus.docx Antony M. Knights Matthew J. Norton Anaëlle J. Lemasson Natasha Stephen 2020-10-08T04:32:15Z https://doi.org/10.3389/fmars.2020.567228.s001 https://figshare.com/articles/dataset/Table_1_Ocean_Acidification_Mitigates_the_Negative_Effects_of_Increased_Sea_Temperatures_on_the_Biomineralization_and_Crystalline_Ultrastructure_of_Mytilus_docx/13064807 unknown doi:10.3389/fmars.2020.567228.s001 https://figshare.com/articles/dataset/Table_1_Ocean_Acidification_Mitigates_the_Negative_Effects_of_Increased_Sea_Temperatures_on_the_Biomineralization_and_Crystalline_Ultrastructure_of_Mytilus_docx/13064807 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering multiple stressors climate change biomineralization mussels environmental variability functioning Dataset 2020 ftfrontimediafig https://doi.org/10.3389/fmars.2020.567228.s001 2020-10-14T22:56:25Z Negative impacts of global climate change are predicted for a range of taxa. Projections predict marked increases in sea surface temperatures and ocean acidification (OA), arguably placing calcifying organisms at most risk. While detrimental impacts of environmental change on the growth and ultrastructure of bivalve mollusk shells have been shown, rapid and diel fluctuations in pH typical of coastal systems are often not considered. Mytilus edulis, an economically important marine calcifier vulnerable to climate change, were exposed to current and future OA (380 and 1000 ppm pCO 2 ), warming (17 and 20°C), and ocean acidification and warming (OAW) scenarios in a seawater system incorporating natural fluctuations in pH. Both macroscopic morphometrics (length, width, height, volume) and microscopic changes in the crystalline structure of shells (ultrastructure) using electron backscatter diffraction (EBSD) were measured over time. Increases in seawater temperature and OAW scenarios led to increased and decreased shell growth respectively and on marginal changes in cavity volumes. Shell crystal matrices became disordered shifting toward preferred alignment under elevated temperatures indicating restricted growth, whereas Mytilus grown under OAW scenarios maintained single crystal fabrics suggesting OA may ameliorate some of the negative consequences of temperature increases. However, both elevated temperature and OAW led to significant increases in crystal size (grain area and diameter) and misorientation frequencies, suggesting a propensity toward increased shell brittleness. Results suggest adult Mytilus may become more susceptible to biological determinants of survival in the future, altering ecosystem structure and functioning. Dataset Ocean acidification Frontiers: Figshare |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering multiple stressors climate change biomineralization mussels environmental variability functioning |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering multiple stressors climate change biomineralization mussels environmental variability functioning Antony M. Knights Matthew J. Norton Anaëlle J. Lemasson Natasha Stephen Table_1_Ocean Acidification Mitigates the Negative Effects of Increased Sea Temperatures on the Biomineralization and Crystalline Ultrastructure of Mytilus.docx |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering multiple stressors climate change biomineralization mussels environmental variability functioning |
description |
Negative impacts of global climate change are predicted for a range of taxa. Projections predict marked increases in sea surface temperatures and ocean acidification (OA), arguably placing calcifying organisms at most risk. While detrimental impacts of environmental change on the growth and ultrastructure of bivalve mollusk shells have been shown, rapid and diel fluctuations in pH typical of coastal systems are often not considered. Mytilus edulis, an economically important marine calcifier vulnerable to climate change, were exposed to current and future OA (380 and 1000 ppm pCO 2 ), warming (17 and 20°C), and ocean acidification and warming (OAW) scenarios in a seawater system incorporating natural fluctuations in pH. Both macroscopic morphometrics (length, width, height, volume) and microscopic changes in the crystalline structure of shells (ultrastructure) using electron backscatter diffraction (EBSD) were measured over time. Increases in seawater temperature and OAW scenarios led to increased and decreased shell growth respectively and on marginal changes in cavity volumes. Shell crystal matrices became disordered shifting toward preferred alignment under elevated temperatures indicating restricted growth, whereas Mytilus grown under OAW scenarios maintained single crystal fabrics suggesting OA may ameliorate some of the negative consequences of temperature increases. However, both elevated temperature and OAW led to significant increases in crystal size (grain area and diameter) and misorientation frequencies, suggesting a propensity toward increased shell brittleness. Results suggest adult Mytilus may become more susceptible to biological determinants of survival in the future, altering ecosystem structure and functioning. |
format |
Dataset |
author |
Antony M. Knights Matthew J. Norton Anaëlle J. Lemasson Natasha Stephen |
author_facet |
Antony M. Knights Matthew J. Norton Anaëlle J. Lemasson Natasha Stephen |
author_sort |
Antony M. Knights |
title |
Table_1_Ocean Acidification Mitigates the Negative Effects of Increased Sea Temperatures on the Biomineralization and Crystalline Ultrastructure of Mytilus.docx |
title_short |
Table_1_Ocean Acidification Mitigates the Negative Effects of Increased Sea Temperatures on the Biomineralization and Crystalline Ultrastructure of Mytilus.docx |
title_full |
Table_1_Ocean Acidification Mitigates the Negative Effects of Increased Sea Temperatures on the Biomineralization and Crystalline Ultrastructure of Mytilus.docx |
title_fullStr |
Table_1_Ocean Acidification Mitigates the Negative Effects of Increased Sea Temperatures on the Biomineralization and Crystalline Ultrastructure of Mytilus.docx |
title_full_unstemmed |
Table_1_Ocean Acidification Mitigates the Negative Effects of Increased Sea Temperatures on the Biomineralization and Crystalline Ultrastructure of Mytilus.docx |
title_sort |
table_1_ocean acidification mitigates the negative effects of increased sea temperatures on the biomineralization and crystalline ultrastructure of mytilus.docx |
publishDate |
2020 |
url |
https://doi.org/10.3389/fmars.2020.567228.s001 https://figshare.com/articles/dataset/Table_1_Ocean_Acidification_Mitigates_the_Negative_Effects_of_Increased_Sea_Temperatures_on_the_Biomineralization_and_Crystalline_Ultrastructure_of_Mytilus_docx/13064807 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
doi:10.3389/fmars.2020.567228.s001 https://figshare.com/articles/dataset/Table_1_Ocean_Acidification_Mitigates_the_Negative_Effects_of_Increased_Sea_Temperatures_on_the_Biomineralization_and_Crystalline_Ultrastructure_of_Mytilus_docx/13064807 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2020.567228.s001 |
_version_ |
1766157786810417152 |