Boron isotope composition and seawater characteristics of cold water scleratinian corals
The boron isotope systematics has been determined for azooxanthellate scleractinian corals from a wide range of both deep-sea and shallow-water environments. The aragonitic coral species, Caryophyllia smithii, Desmophyllum dianthus, Enallopsammia rostrata, Lophelia pertusa, and Madrepora oculata, ar...
Main Authors: | , , , , , , , , , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2012
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.816120 https://doi.org/10.1594/PANGAEA.816120 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.816120 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.816120 2023-05-15T16:53:58+02:00 Boron isotope composition and seawater characteristics of cold water scleratinian corals McCulloch, Malcolm T Trotter, Julie Montagna, Paolo Falter, James L Dunbar, Robert G Freiwald, André Försterra, Günter López Correa, Matthias Maier, Cornelia Rüggeberg, Andres Taviani, Marco MEDIAN LATITUDE: 6.437453 * MEDIAN LONGITUDE: 26.423044 * SOUTH-BOUND LATITUDE: -44.328330 * WEST-BOUND LONGITUDE: -163.136180 * NORTH-BOUND LATITUDE: 64.108830 * EAST-BOUND LONGITUDE: 147.280000 * DATE/TIME START: 1997-01-01T00:00:00 * DATE/TIME END: 2006-10-15T07:11:00 2012-06-26 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.816120 https://doi.org/10.1594/PANGAEA.816120 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.816120 https://doi.org/10.1594/PANGAEA.816120 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: McCulloch, Malcolm T; Trotter, Julie; Montagna, Paolo; Falter, James L; Dunbar, Robert G; Freiwald, André; Försterra, Günter; López Correa, Matthias; Maier, Cornelia; Rüggeberg, Andres; Taviani, Marco (2012): Resilience of cold-water scleractinian corals to ocean acidification: Boron isotopic systematics of pH and saturation state up-regulation. Geochimica et Cosmochimica Acta, 87, 21-34, https://doi.org/10.1016/j.gca.2012.03.027 HERMIONE Hotspot Ecosystem Research and Mans Impact On European Seas International Polar Year (2007-2008) IPY Dataset 2012 ftpangaea https://doi.org/10.1594/PANGAEA.816120 https://doi.org/10.1016/j.gca.2012.03.027 2023-01-20T07:33:03Z The boron isotope systematics has been determined for azooxanthellate scleractinian corals from a wide range of both deep-sea and shallow-water environments. The aragonitic coral species, Caryophyllia smithii, Desmophyllum dianthus, Enallopsammia rostrata, Lophelia pertusa, and Madrepora oculata, are all found to have relatively high d11B compositions ranging from 23.2 per mil to 28.7 per mil. These values lie substantially above the pH-dependent inorganic seawater borate equilibrium curve, indicative of strong up-regulation of pH of the internal calcifying fluid (pH(cf)), being elevated by ~0.6-0.8 units (Delta pH) relative to ambient seawater. In contrast, the deep-sea calcitic coral Corallium sp. has a significantly lower d11B composition of 15.5 per mil, with a corresponding lower Delta pH value of ~0.3 units, reflecting the importance of mineralogical control on biological pH up-regulation. The solitary coral D. dianthus was sampled over a wide range of seawater pH(T) and shows an approximate linear correlation with Delta pH(Desmo) = 6.43 - 0.71 pH(T) (r**2 = 0.79). An improved correlation is however found with the closely related parameter of seawater aragonite saturation state, where Delta pH(Desmo) = 1.09 - 0.14 Omega(arag) (r**2 = 0.95), indicating the important control that carbonate saturation state has on calcification. The ability to up-regulate internal pH(cf), and consequently Omega(cf), of the calcifying fluid is therefore a process present in both azooxanthellate and zooxanthellate aragonitic corals, and is attributed to the action of Ca2+ -ATPase in modulating the proton gradient between seawater and the site of calcification. These findings also show that the boron isotopic compositions (d11Bcarb) of aragonitic corals are highly systematic and consistent with direct uptake of the borate species within the biologically controlled extracellular calcifying medium. Dataset International Polar Year IPY Lophelia pertusa PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-163.136180,147.280000,64.108830,-44.328330) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
HERMIONE Hotspot Ecosystem Research and Mans Impact On European Seas International Polar Year (2007-2008) IPY |
spellingShingle |
HERMIONE Hotspot Ecosystem Research and Mans Impact On European Seas International Polar Year (2007-2008) IPY McCulloch, Malcolm T Trotter, Julie Montagna, Paolo Falter, James L Dunbar, Robert G Freiwald, André Försterra, Günter López Correa, Matthias Maier, Cornelia Rüggeberg, Andres Taviani, Marco Boron isotope composition and seawater characteristics of cold water scleratinian corals |
topic_facet |
HERMIONE Hotspot Ecosystem Research and Mans Impact On European Seas International Polar Year (2007-2008) IPY |
description |
The boron isotope systematics has been determined for azooxanthellate scleractinian corals from a wide range of both deep-sea and shallow-water environments. The aragonitic coral species, Caryophyllia smithii, Desmophyllum dianthus, Enallopsammia rostrata, Lophelia pertusa, and Madrepora oculata, are all found to have relatively high d11B compositions ranging from 23.2 per mil to 28.7 per mil. These values lie substantially above the pH-dependent inorganic seawater borate equilibrium curve, indicative of strong up-regulation of pH of the internal calcifying fluid (pH(cf)), being elevated by ~0.6-0.8 units (Delta pH) relative to ambient seawater. In contrast, the deep-sea calcitic coral Corallium sp. has a significantly lower d11B composition of 15.5 per mil, with a corresponding lower Delta pH value of ~0.3 units, reflecting the importance of mineralogical control on biological pH up-regulation. The solitary coral D. dianthus was sampled over a wide range of seawater pH(T) and shows an approximate linear correlation with Delta pH(Desmo) = 6.43 - 0.71 pH(T) (r**2 = 0.79). An improved correlation is however found with the closely related parameter of seawater aragonite saturation state, where Delta pH(Desmo) = 1.09 - 0.14 Omega(arag) (r**2 = 0.95), indicating the important control that carbonate saturation state has on calcification. The ability to up-regulate internal pH(cf), and consequently Omega(cf), of the calcifying fluid is therefore a process present in both azooxanthellate and zooxanthellate aragonitic corals, and is attributed to the action of Ca2+ -ATPase in modulating the proton gradient between seawater and the site of calcification. These findings also show that the boron isotopic compositions (d11Bcarb) of aragonitic corals are highly systematic and consistent with direct uptake of the borate species within the biologically controlled extracellular calcifying medium. |
format |
Dataset |
author |
McCulloch, Malcolm T Trotter, Julie Montagna, Paolo Falter, James L Dunbar, Robert G Freiwald, André Försterra, Günter López Correa, Matthias Maier, Cornelia Rüggeberg, Andres Taviani, Marco |
author_facet |
McCulloch, Malcolm T Trotter, Julie Montagna, Paolo Falter, James L Dunbar, Robert G Freiwald, André Försterra, Günter López Correa, Matthias Maier, Cornelia Rüggeberg, Andres Taviani, Marco |
author_sort |
McCulloch, Malcolm T |
title |
Boron isotope composition and seawater characteristics of cold water scleratinian corals |
title_short |
Boron isotope composition and seawater characteristics of cold water scleratinian corals |
title_full |
Boron isotope composition and seawater characteristics of cold water scleratinian corals |
title_fullStr |
Boron isotope composition and seawater characteristics of cold water scleratinian corals |
title_full_unstemmed |
Boron isotope composition and seawater characteristics of cold water scleratinian corals |
title_sort |
boron isotope composition and seawater characteristics of cold water scleratinian corals |
publisher |
PANGAEA |
publishDate |
2012 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.816120 https://doi.org/10.1594/PANGAEA.816120 |
op_coverage |
MEDIAN LATITUDE: 6.437453 * MEDIAN LONGITUDE: 26.423044 * SOUTH-BOUND LATITUDE: -44.328330 * WEST-BOUND LONGITUDE: -163.136180 * NORTH-BOUND LATITUDE: 64.108830 * EAST-BOUND LONGITUDE: 147.280000 * DATE/TIME START: 1997-01-01T00:00:00 * DATE/TIME END: 2006-10-15T07:11:00 |
long_lat |
ENVELOPE(-163.136180,147.280000,64.108830,-44.328330) |
genre |
International Polar Year IPY Lophelia pertusa |
genre_facet |
International Polar Year IPY Lophelia pertusa |
op_source |
Supplement to: McCulloch, Malcolm T; Trotter, Julie; Montagna, Paolo; Falter, James L; Dunbar, Robert G; Freiwald, André; Försterra, Günter; López Correa, Matthias; Maier, Cornelia; Rüggeberg, Andres; Taviani, Marco (2012): Resilience of cold-water scleractinian corals to ocean acidification: Boron isotopic systematics of pH and saturation state up-regulation. Geochimica et Cosmochimica Acta, 87, 21-34, https://doi.org/10.1016/j.gca.2012.03.027 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.816120 https://doi.org/10.1594/PANGAEA.816120 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.816120 https://doi.org/10.1016/j.gca.2012.03.027 |
_version_ |
1766044571908702208 |