Disentangling the Biological and Environmental Control of M. edulis Shell Chemistry

Heinemann, Agnes, Hiebenthal, Claas, Fietzke, Jan, Eisenhauer, Anton and Wahl, Martin (2011) Disentangling the Biological and Environmental Control of M. edulis Shell Chemistry Geochemistry, Geophysics, Geosystems, 12 (3). Q03009. DOI 10.1029/2010GC003340.

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Abstract

Blue mussel individuals (Mytilus edulis) were cultured at four different salinities (17, 20, 29, and 34). During the course of the experiment, temperature was gradually increased from 6°C to 14°C. Mg/Ca and Sr/Ca ratios of the shell calcite portions produced during the 9 weeks of experimental treatment as well parts that were precipitated before the treatment phase were measured by laser ablation–multicollector–inductively coupled plasma–mass spectrometry. Mg/Ca ratios show a positive correlation with temperature for individuals cultured at salinity 29 and 34 (Mg/Ca (mmol/mol) ∼ (0.2–0.3)*T (°C)), while for individuals cultured at low salinities (17, 20) no trend was observed. Sr/Ca ratios were not affected by temperature but strongly by salinity. The data show very strong biological influence (“individual differences” and “physiological variability”) on elemental ratios (79% on Mg/Ca and 41% on Sr/Ca) in M. edulis calcite. The results challenge the use of blue mussel shell data as environmental proxies.

Document Type: Article
Additional Information: Correction : 10.1029/2011GC003673 WOS:000289084800002
Keywords: Mytilus edulis; proxy archive; shell chemistry; biological control; MYTILUS-EDULIS; PECTEN-MAXIMUS; RATIOS; MG/CA; CALCITE; TEMPERATURE; SR/CA; O-18/O-16; MAGNESIUM; STRONTIUM
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-MG Marine Geosystems
OceanRep > GEOMAR > FB4 Dynamics of the Ocean Floor > FB4-MUHS Magmatic and Hydrothermal Systems
OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EOE-B Experimental Ecology - Benthic Ecology
OceanRep > The Future Ocean - Cluster of Excellence
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1029/2010GC003340
ISSN: 1525-2027
Related URLs:
Projects: BIOACID
Date Deposited: 18 Feb 2011 09:52
Last Modified: 12 Sep 2016 08:22
URI: http://oceanrep.geomar.de/id/eprint/11515

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