Tidal downwelling and implications for the carbon biogeochemistry of cold‐water corals in relation to future ocean acidification and warming
Abstract Cold‐water coral ( CWC ) reefs are recognized as ecologically and biologically significant areas that generate habitats and diversity. The interaction between hydrodynamics and CWC s has been well studied at the M ingulay R eef C omplex, a relatively shallow area of reefs found on the conti...
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crwiley:10.1111/gcb.12256 2024-06-23T07:55:51+00:00 Tidal downwelling and implications for the carbon biogeochemistry of cold‐water corals in relation to future ocean acidification and warming Findlay, Helen S. Artioli, Yuri Moreno Navas, Juan Hennige, Sebastian J. Wicks, Laura C. Huvenne, Veerle A. I. Woodward, E. Malcolm S. Roberts, J. Murray 2013 http://dx.doi.org/10.1111/gcb.12256 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.12256 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.12256 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Global Change Biology volume 19, issue 9, page 2708-2719 ISSN 1354-1013 1365-2486 journal-article 2013 crwiley https://doi.org/10.1111/gcb.12256 2024-06-04T06:44:04Z Abstract Cold‐water coral ( CWC ) reefs are recognized as ecologically and biologically significant areas that generate habitats and diversity. The interaction between hydrodynamics and CWC s has been well studied at the M ingulay R eef C omplex, a relatively shallow area of reefs found on the continental shelf off S cotland, UK . Within ‘ M ingulay A rea 01’ a rapid tidal downwelling of surface waters, brought about as an internal wave, is known to supply warmer, phytoplankton‐rich waters to corals growing on the northern flank of an east‐west trending seabed ridge. This study shows that this tidal downwelling also causes short‐term perturbations in the inorganic carbon (C T ) and nutrient dynamics through the water column and immediately above the reef. Over a 14 h period, corresponding to one semi‐diurnal tidal cycle, seawater pH overlying the reef varied by ca. 0.1 pH unit, while p CO 2 shifted by >60 μatm, a shift equivalent to a ca. 25 year jump into the future, with respect to atmospheric p CO 2 . During the summer stratified period, these downwelling events result in the reef being washed over with surface water that has higher pH, is warmer, nutrient depleted, but rich in phytoplankton‐derived particles compared to the deeper waters in which the corals sit. Empirical observations, together with outputs from the E uropean R egional S helf S ea E cosystem M odel, demonstrate that the variability that the CWC reefs experience changes through the seasons and into the future. Hence, as ocean acidification and warming increase into the future, the downwelling event specific to this site could provide short‐term amelioration of corrosive conditions at certain times of the year; however, it could additionally result in enhanced detrimental impacts of warming on CWC s. Natural variability in the C T and nutrient conditions, as well as local hydrodynamic regimes, must be accounted for in any future predictions concerning the responses of marine ecosystems to climate change. Article in Journal/Newspaper Ocean acidification Wiley Online Library Global Change Biology 19 9 2708 2719 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Cold‐water coral ( CWC ) reefs are recognized as ecologically and biologically significant areas that generate habitats and diversity. The interaction between hydrodynamics and CWC s has been well studied at the M ingulay R eef C omplex, a relatively shallow area of reefs found on the continental shelf off S cotland, UK . Within ‘ M ingulay A rea 01’ a rapid tidal downwelling of surface waters, brought about as an internal wave, is known to supply warmer, phytoplankton‐rich waters to corals growing on the northern flank of an east‐west trending seabed ridge. This study shows that this tidal downwelling also causes short‐term perturbations in the inorganic carbon (C T ) and nutrient dynamics through the water column and immediately above the reef. Over a 14 h period, corresponding to one semi‐diurnal tidal cycle, seawater pH overlying the reef varied by ca. 0.1 pH unit, while p CO 2 shifted by >60 μatm, a shift equivalent to a ca. 25 year jump into the future, with respect to atmospheric p CO 2 . During the summer stratified period, these downwelling events result in the reef being washed over with surface water that has higher pH, is warmer, nutrient depleted, but rich in phytoplankton‐derived particles compared to the deeper waters in which the corals sit. Empirical observations, together with outputs from the E uropean R egional S helf S ea E cosystem M odel, demonstrate that the variability that the CWC reefs experience changes through the seasons and into the future. Hence, as ocean acidification and warming increase into the future, the downwelling event specific to this site could provide short‐term amelioration of corrosive conditions at certain times of the year; however, it could additionally result in enhanced detrimental impacts of warming on CWC s. Natural variability in the C T and nutrient conditions, as well as local hydrodynamic regimes, must be accounted for in any future predictions concerning the responses of marine ecosystems to climate change. |
format |
Article in Journal/Newspaper |
author |
Findlay, Helen S. Artioli, Yuri Moreno Navas, Juan Hennige, Sebastian J. Wicks, Laura C. Huvenne, Veerle A. I. Woodward, E. Malcolm S. Roberts, J. Murray |
spellingShingle |
Findlay, Helen S. Artioli, Yuri Moreno Navas, Juan Hennige, Sebastian J. Wicks, Laura C. Huvenne, Veerle A. I. Woodward, E. Malcolm S. Roberts, J. Murray Tidal downwelling and implications for the carbon biogeochemistry of cold‐water corals in relation to future ocean acidification and warming |
author_facet |
Findlay, Helen S. Artioli, Yuri Moreno Navas, Juan Hennige, Sebastian J. Wicks, Laura C. Huvenne, Veerle A. I. Woodward, E. Malcolm S. Roberts, J. Murray |
author_sort |
Findlay, Helen S. |
title |
Tidal downwelling and implications for the carbon biogeochemistry of cold‐water corals in relation to future ocean acidification and warming |
title_short |
Tidal downwelling and implications for the carbon biogeochemistry of cold‐water corals in relation to future ocean acidification and warming |
title_full |
Tidal downwelling and implications for the carbon biogeochemistry of cold‐water corals in relation to future ocean acidification and warming |
title_fullStr |
Tidal downwelling and implications for the carbon biogeochemistry of cold‐water corals in relation to future ocean acidification and warming |
title_full_unstemmed |
Tidal downwelling and implications for the carbon biogeochemistry of cold‐water corals in relation to future ocean acidification and warming |
title_sort |
tidal downwelling and implications for the carbon biogeochemistry of cold‐water corals in relation to future ocean acidification and warming |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1111/gcb.12256 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.12256 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.12256 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Global Change Biology volume 19, issue 9, page 2708-2719 ISSN 1354-1013 1365-2486 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/gcb.12256 |
container_title |
Global Change Biology |
container_volume |
19 |
container_issue |
9 |
container_start_page |
2708 |
op_container_end_page |
2719 |
_version_ |
1802648625242701824 |