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. Open Access Geochemistry, Geophysics, Geosystems, 12 (3). Q03009. DOI 10.1029/2010GC003340.

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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
OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EOE-B Experimental Ecology - Benthic Ecology
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1029/2010GC003340
ISSN: 1525-2027
Related URLs:
Projects: BIOACID, Future Ocean
Date Deposited: 18 Feb 2011 09:52
Last Modified: 27 Feb 2018 09:21
URI: http://oceanrep.geomar.de/id/eprint/11515

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