Near-shore Antarctic pH variability has implications for the design of oceanacidification experiments
Abstract Understanding how declining seawater pH caused by anthropogenic carbon emissions, or oceanacidification, impacts Southern Ocean biota is limited by a paucity of pH time-series. Here,we present the first high-frequency in-situ pH time-series in near-shore Antarctica fromspring to winter unde...
Published in: | Scientific Reports |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Springer Science and Business Media LLC
2015
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1038/srep09638 http://www.nature.com/articles/srep09638.pdf http://www.nature.com/articles/srep09638 |
id |
crspringernat:10.1038/srep09638 |
---|---|
record_format |
openpolar |
spelling |
crspringernat:10.1038/srep09638 2023-05-15T14:10:40+02:00 Near-shore Antarctic pH variability has implications for the design of oceanacidification experiments Kapsenberg, Lydia Kelley, Amanda L. Shaw, Emily C. Martz, Todd R. Hofmann, Gretchen E. 2015 http://dx.doi.org/10.1038/srep09638 http://www.nature.com/articles/srep09638.pdf http://www.nature.com/articles/srep09638 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 5, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2015 crspringernat https://doi.org/10.1038/srep09638 2022-01-04T16:37:46Z Abstract Understanding how declining seawater pH caused by anthropogenic carbon emissions, or oceanacidification, impacts Southern Ocean biota is limited by a paucity of pH time-series. Here,we present the first high-frequency in-situ pH time-series in near-shore Antarctica fromspring to winter under annual sea ice. Observations from autonomous pH sensors revealed aseasonal increase of 0.3 pH units. The summer season was marked by an increase in temporalpH variability relative to spring and early winter, matching coastal pH variability observedat lower latitudes. Using our data, simulations of ocean acidification show a future periodof deleterious wintertime pH levels potentially expanding to 7–11 months annually by 2100.Given the presence of (sub)seasonal pH variability, Antarctica marine species have anexisting physiological tolerance of temporal pH change that may influence adaptation tofuture acidification. Yet, pH-induced ecosystem changes remain difficult to characterize inthe absence of sufficient physiological data on present-day tolerances. It is thereforeessential to incorporate natural and projected temporal pH variability in the design ofexperiments intended to study ocean acidification biology. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ocean acidification Sea ice Southern Ocean Springer Nature (via Crossref) Antarctic Southern Ocean Scientific Reports 5 1 |
institution |
Open Polar |
collection |
Springer Nature (via Crossref) |
op_collection_id |
crspringernat |
language |
English |
topic |
Multidisciplinary |
spellingShingle |
Multidisciplinary Kapsenberg, Lydia Kelley, Amanda L. Shaw, Emily C. Martz, Todd R. Hofmann, Gretchen E. Near-shore Antarctic pH variability has implications for the design of oceanacidification experiments |
topic_facet |
Multidisciplinary |
description |
Abstract Understanding how declining seawater pH caused by anthropogenic carbon emissions, or oceanacidification, impacts Southern Ocean biota is limited by a paucity of pH time-series. Here,we present the first high-frequency in-situ pH time-series in near-shore Antarctica fromspring to winter under annual sea ice. Observations from autonomous pH sensors revealed aseasonal increase of 0.3 pH units. The summer season was marked by an increase in temporalpH variability relative to spring and early winter, matching coastal pH variability observedat lower latitudes. Using our data, simulations of ocean acidification show a future periodof deleterious wintertime pH levels potentially expanding to 7–11 months annually by 2100.Given the presence of (sub)seasonal pH variability, Antarctica marine species have anexisting physiological tolerance of temporal pH change that may influence adaptation tofuture acidification. Yet, pH-induced ecosystem changes remain difficult to characterize inthe absence of sufficient physiological data on present-day tolerances. It is thereforeessential to incorporate natural and projected temporal pH variability in the design ofexperiments intended to study ocean acidification biology. |
format |
Article in Journal/Newspaper |
author |
Kapsenberg, Lydia Kelley, Amanda L. Shaw, Emily C. Martz, Todd R. Hofmann, Gretchen E. |
author_facet |
Kapsenberg, Lydia Kelley, Amanda L. Shaw, Emily C. Martz, Todd R. Hofmann, Gretchen E. |
author_sort |
Kapsenberg, Lydia |
title |
Near-shore Antarctic pH variability has implications for the design of oceanacidification experiments |
title_short |
Near-shore Antarctic pH variability has implications for the design of oceanacidification experiments |
title_full |
Near-shore Antarctic pH variability has implications for the design of oceanacidification experiments |
title_fullStr |
Near-shore Antarctic pH variability has implications for the design of oceanacidification experiments |
title_full_unstemmed |
Near-shore Antarctic pH variability has implications for the design of oceanacidification experiments |
title_sort |
near-shore antarctic ph variability has implications for the design of oceanacidification experiments |
publisher |
Springer Science and Business Media LLC |
publishDate |
2015 |
url |
http://dx.doi.org/10.1038/srep09638 http://www.nature.com/articles/srep09638.pdf http://www.nature.com/articles/srep09638 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Antarctica Ocean acidification Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Ocean acidification Sea ice Southern Ocean |
op_source |
Scientific Reports volume 5, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/srep09638 |
container_title |
Scientific Reports |
container_volume |
5 |
container_issue |
1 |
_version_ |
1766282755525574656 |