Exploring the calcium isotope signature of Arctica islandica as an environmental proxy using laboratory- and field-cultured specimens
The calcium-isotope composition (delta Ca-44/40) of the aragonitic bivalve Arctica islandica grown in laboratory and field cultures was investigated in terms of environmental and biological controls to explore its potential as a palaeoceanographic proxy. While we found no significant effect of salin...
Published in: | Palaeogeography, Palaeoclimatology, Palaeoecology |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2013
|
Subjects: | |
Online Access: | http://imis.nioz.nl/imis.php?module=ref&refid=230869 |
id |
ftnioz:oai:imis.nioz.nl:230869 |
---|---|
record_format |
openpolar |
spelling |
ftnioz:oai:imis.nioz.nl:230869 2024-09-15T17:54:27+00:00 Exploring the calcium isotope signature of Arctica islandica as an environmental proxy using laboratory- and field-cultured specimens Hippler, D. Witbaard, R. van Aken, H.M. Buhl, D. Immenhauser, A. 2013 http://imis.nioz.nl/imis.php?module=ref&refid=230869 en eng info:eu-repo/semantics/altIdentifier/wos/000316307100008 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1016/j.palaeo.2011.11.015 http://imis.nioz.nl/imis.php?module=ref&refid=230869 info:eu-repo/semantics/closedAccess %3Ci%3EPalaeogeogr.+Palaeoclimatol.+Palaeoecol.+373%3C%2Fi%3E%3A+75-87.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.palaeo.2011.11.015%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.palaeo.2011.11.015%3C%2Fa%3E Arctica islandica info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2013 ftnioz https://doi.org/10.1016/j.palaeo.2011.11.015 2024-08-26T03:37:13Z The calcium-isotope composition (delta Ca-44/40) of the aragonitic bivalve Arctica islandica grown in laboratory and field cultures was investigated in terms of environmental and biological controls to explore its potential as a palaeoceanographic proxy. While we found no significant effect of salinity on Ca-isotope fractionation, the relationship between Ca-44/Ca-40 ratios of A. islandica and temperature was best explained by a generalised additive model, which describes the temperature versus Ca-isotope relationship as a nonlinear, second-degree polynomial with an optimum temperature of 15 degrees C. Since Ca-44/Ca-40 ratios clearly increase with increasing temperature up to 15 degrees C, the temperature versus Ca-isotope relation can be approximated through a linear fit up to 15 degrees C. The slope of this linear temperature dependent Ca-isotope fractionation resembles previous calibrations of inorganic and biogenic aragonites, providing insights into fractionation processes during bivalve biomineralization. Our findings suggest that the observed biologically-induced Ca-isotope fractionation occurs when Ca is transported from seawater to the site of mineralization, most likely during the passage through the epithelial mantle. The observed evidence for strong vital effects indicates limited use of Ca isotopes in A. islandica as a temperature proxy. Article in Journal/Newspaper Arctica islandica NIOZ Repository (Royal Netherlands Institute for Sea Research) Palaeogeography, Palaeoclimatology, Palaeoecology 373 75 87 |
institution |
Open Polar |
collection |
NIOZ Repository (Royal Netherlands Institute for Sea Research) |
op_collection_id |
ftnioz |
language |
English |
topic |
Arctica islandica |
spellingShingle |
Arctica islandica Hippler, D. Witbaard, R. van Aken, H.M. Buhl, D. Immenhauser, A. Exploring the calcium isotope signature of Arctica islandica as an environmental proxy using laboratory- and field-cultured specimens |
topic_facet |
Arctica islandica |
description |
The calcium-isotope composition (delta Ca-44/40) of the aragonitic bivalve Arctica islandica grown in laboratory and field cultures was investigated in terms of environmental and biological controls to explore its potential as a palaeoceanographic proxy. While we found no significant effect of salinity on Ca-isotope fractionation, the relationship between Ca-44/Ca-40 ratios of A. islandica and temperature was best explained by a generalised additive model, which describes the temperature versus Ca-isotope relationship as a nonlinear, second-degree polynomial with an optimum temperature of 15 degrees C. Since Ca-44/Ca-40 ratios clearly increase with increasing temperature up to 15 degrees C, the temperature versus Ca-isotope relation can be approximated through a linear fit up to 15 degrees C. The slope of this linear temperature dependent Ca-isotope fractionation resembles previous calibrations of inorganic and biogenic aragonites, providing insights into fractionation processes during bivalve biomineralization. Our findings suggest that the observed biologically-induced Ca-isotope fractionation occurs when Ca is transported from seawater to the site of mineralization, most likely during the passage through the epithelial mantle. The observed evidence for strong vital effects indicates limited use of Ca isotopes in A. islandica as a temperature proxy. |
format |
Article in Journal/Newspaper |
author |
Hippler, D. Witbaard, R. van Aken, H.M. Buhl, D. Immenhauser, A. |
author_facet |
Hippler, D. Witbaard, R. van Aken, H.M. Buhl, D. Immenhauser, A. |
author_sort |
Hippler, D. |
title |
Exploring the calcium isotope signature of Arctica islandica as an environmental proxy using laboratory- and field-cultured specimens |
title_short |
Exploring the calcium isotope signature of Arctica islandica as an environmental proxy using laboratory- and field-cultured specimens |
title_full |
Exploring the calcium isotope signature of Arctica islandica as an environmental proxy using laboratory- and field-cultured specimens |
title_fullStr |
Exploring the calcium isotope signature of Arctica islandica as an environmental proxy using laboratory- and field-cultured specimens |
title_full_unstemmed |
Exploring the calcium isotope signature of Arctica islandica as an environmental proxy using laboratory- and field-cultured specimens |
title_sort |
exploring the calcium isotope signature of arctica islandica as an environmental proxy using laboratory- and field-cultured specimens |
publishDate |
2013 |
url |
http://imis.nioz.nl/imis.php?module=ref&refid=230869 |
genre |
Arctica islandica |
genre_facet |
Arctica islandica |
op_source |
%3Ci%3EPalaeogeogr.+Palaeoclimatol.+Palaeoecol.+373%3C%2Fi%3E%3A+75-87.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.palaeo.2011.11.015%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.palaeo.2011.11.015%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000316307100008 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1016/j.palaeo.2011.11.015 http://imis.nioz.nl/imis.php?module=ref&refid=230869 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.palaeo.2011.11.015 |
container_title |
Palaeogeography, Palaeoclimatology, Palaeoecology |
container_volume |
373 |
container_start_page |
75 |
op_container_end_page |
87 |
_version_ |
1810430773390475264 |