Growth response of calcifying marine epibionts to biogenic pH fluctuations and global ocean acidification scenarios
In coastal marine environments, physical and biological forces can cause dynamic pH fluctuations from microscale (diffusive boundary layer [DBL]) up to ecosystem‐scale (benthic boundary layer [BBL]). In the face of ocean acidification (OA), such natural pH variations may modulate an organism's...
Published in: | Limnology and Oceanography |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
John Wiley & Sons, Inc.
2020
|
Subjects: | |
Online Access: | https://doi.org/10.23689/fidgeo-4067 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8407 |
id |
ftsubggeo:oai:e-docs.geo-leo.de:11858/8407 |
---|---|
record_format |
openpolar |
spelling |
ftsubggeo:oai:e-docs.geo-leo.de:11858/8407 2024-06-09T07:48:46+00:00 Growth response of calcifying marine epibionts to biogenic pH fluctuations and global ocean acidification scenarios Johnson, Mildred Jessica Hennigs, Laura Margarethe Sawall, Yvonne Pansch, Christian Wall, Marlene 1 GEOMAR Helmholtz Centre for Ocean Research Kiel Kiel Germany 2020-12-17 https://doi.org/10.23689/fidgeo-4067 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8407 eng eng John Wiley & Sons, Inc. Hoboken, USA doi:10.23689/fidgeo-4067 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8407 This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. ddc:551.46 coastal marine environments calcifying marine epibionts doc-type:article 2020 ftsubggeo https://doi.org/10.23689/fidgeo-4067 2024-05-10T04:58:51Z In coastal marine environments, physical and biological forces can cause dynamic pH fluctuations from microscale (diffusive boundary layer [DBL]) up to ecosystem‐scale (benthic boundary layer [BBL]). In the face of ocean acidification (OA), such natural pH variations may modulate an organism's response to OA by providing temporal refugia. We investigated the effect of pH fluctuations, generated by the brown alga Fucus serratus' biological activity, on the calcifying epibionts Balanus improvisus and Electra pilosa under OA. For this, both epibionts were grown on inactive and biologically active surfaces and exposed to (1) constant pH scenarios under ambient (pH 8.1) or OA conditions (pH 7.7), or (2) oscillating pH scenarios mimicking BBL conditions at ambient (pH 7.7–8.6) or OA scenarios (pH 7.4–8.2). Furthermore, all treatment combinations were tested at 10°C and 15°C. Against our expectations, OA treatments did not affect epibiont growth under constant or fluctuating (BBL) pH conditions, indicating rather high robustness against predicted OA scenarios. Furthermore, epibiont growth was hampered and not fostered on active surfaces (fluctuating DBL conditions), indicating that fluctuating pH conditions of the DBL with elevated daytime pH do not necessarily provide temporal refugia from OA. In contrast, results indicate that factors other than pH may play larger roles for epibiont growth on macrophytes (e.g., surface characteristics, macrophyte antifouling defense, or dynamics of oxygen and nutrient concentrations). Warming enhanced epibiont growth rates significantly, independently of OA, indicating no synergistic effects of pH treatments and temperature within their natural temperature range. Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659 Article in Journal/Newspaper Ocean acidification GEO-LEOe-docs (FID GEO) Limnology and Oceanography 66 4 1125 1138 |
institution |
Open Polar |
collection |
GEO-LEOe-docs (FID GEO) |
op_collection_id |
ftsubggeo |
language |
English |
topic |
ddc:551.46 coastal marine environments calcifying marine epibionts |
spellingShingle |
ddc:551.46 coastal marine environments calcifying marine epibionts Johnson, Mildred Jessica Hennigs, Laura Margarethe Sawall, Yvonne Pansch, Christian Wall, Marlene 1 GEOMAR Helmholtz Centre for Ocean Research Kiel Kiel Germany Growth response of calcifying marine epibionts to biogenic pH fluctuations and global ocean acidification scenarios |
topic_facet |
ddc:551.46 coastal marine environments calcifying marine epibionts |
description |
In coastal marine environments, physical and biological forces can cause dynamic pH fluctuations from microscale (diffusive boundary layer [DBL]) up to ecosystem‐scale (benthic boundary layer [BBL]). In the face of ocean acidification (OA), such natural pH variations may modulate an organism's response to OA by providing temporal refugia. We investigated the effect of pH fluctuations, generated by the brown alga Fucus serratus' biological activity, on the calcifying epibionts Balanus improvisus and Electra pilosa under OA. For this, both epibionts were grown on inactive and biologically active surfaces and exposed to (1) constant pH scenarios under ambient (pH 8.1) or OA conditions (pH 7.7), or (2) oscillating pH scenarios mimicking BBL conditions at ambient (pH 7.7–8.6) or OA scenarios (pH 7.4–8.2). Furthermore, all treatment combinations were tested at 10°C and 15°C. Against our expectations, OA treatments did not affect epibiont growth under constant or fluctuating (BBL) pH conditions, indicating rather high robustness against predicted OA scenarios. Furthermore, epibiont growth was hampered and not fostered on active surfaces (fluctuating DBL conditions), indicating that fluctuating pH conditions of the DBL with elevated daytime pH do not necessarily provide temporal refugia from OA. In contrast, results indicate that factors other than pH may play larger roles for epibiont growth on macrophytes (e.g., surface characteristics, macrophyte antifouling defense, or dynamics of oxygen and nutrient concentrations). Warming enhanced epibiont growth rates significantly, independently of OA, indicating no synergistic effects of pH treatments and temperature within their natural temperature range. Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659 |
format |
Article in Journal/Newspaper |
author |
Johnson, Mildred Jessica Hennigs, Laura Margarethe Sawall, Yvonne Pansch, Christian Wall, Marlene 1 GEOMAR Helmholtz Centre for Ocean Research Kiel Kiel Germany |
author_facet |
Johnson, Mildred Jessica Hennigs, Laura Margarethe Sawall, Yvonne Pansch, Christian Wall, Marlene 1 GEOMAR Helmholtz Centre for Ocean Research Kiel Kiel Germany |
author_sort |
Johnson, Mildred Jessica |
title |
Growth response of calcifying marine epibionts to biogenic pH fluctuations and global ocean acidification scenarios |
title_short |
Growth response of calcifying marine epibionts to biogenic pH fluctuations and global ocean acidification scenarios |
title_full |
Growth response of calcifying marine epibionts to biogenic pH fluctuations and global ocean acidification scenarios |
title_fullStr |
Growth response of calcifying marine epibionts to biogenic pH fluctuations and global ocean acidification scenarios |
title_full_unstemmed |
Growth response of calcifying marine epibionts to biogenic pH fluctuations and global ocean acidification scenarios |
title_sort |
growth response of calcifying marine epibionts to biogenic ph fluctuations and global ocean acidification scenarios |
publisher |
John Wiley & Sons, Inc. |
publishDate |
2020 |
url |
https://doi.org/10.23689/fidgeo-4067 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8407 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
doi:10.23689/fidgeo-4067 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8407 |
op_rights |
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_doi |
https://doi.org/10.23689/fidgeo-4067 |
container_title |
Limnology and Oceanography |
container_volume |
66 |
container_issue |
4 |
container_start_page |
1125 |
op_container_end_page |
1138 |
_version_ |
1801380657841045504 |