and   ratios in skeletal calcite of Mytilus trossulus: Covariation with metabolic rate, salinity, and carbon isotopic composition of seawater

Κlein, Rudolf; Lohmann, Kyger C.; Thayer, Charles W.

doi:10.1016/s0016-7037(96)00232-3

Cited by 263 publications

(223 citation statements)

References 47 publications

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“…The Mg/Ca data also appear to show a diurnal cycle, but the amplitude is rather large and highly irregular. A few reports have described a positive correlation between the Mg/Ca ratio and temperature for Mytilus trossulus 24 and Crassostrea virginica 25 , although these earlier data were obtained using a conventional analytical method. There is a slight positive correlation between the Mg/Ca ratio and seawater temperature ( Supplementary Fig.…”

Section: Discussionmentioning

confidence: 99%

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Past daily light cycle recorded in the strontium/calcium ratios of giant clam shells

et al. 2012

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The historical record of daily light cycle in tropical and subtropical regions is short. moreover, it remains difficult to extract this cycle in the past from natural archives such as biogenic marine carbonates. Here we describe the precise analysis of sr/Ca, mg/Ca, and Ba/Ca ratios in a cultivated giant clam shell, using a laterally high-resolution secondary ion mass spectrometer with 2 µm resolution. The sr/Ca ratio exhibits striking diurnal variations, reflecting the daily light cycle. A clear seasonal variation in sr/Ca is also observed in another longer set of measurements with 50 µm resolution. Light-enhanced calcification and elemental transportation processes, in giant clam and symbiotic algae, may explain these diurnal and annual variations. This opens the possibility to develop the sr/Ca ratio from a giant clam shell as an effective proxy for parameters of the daily light cycle.

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Section: Discussionmentioning

confidence: 99%

“…Scraped powder was dissolved by HNO 3 and prepared for the analysis. Intensities of 9 Be, 24 43 Ca ratios were calibrated against those of a standard sample (JCt-1) prepared and distributed by National Institute of Advanced Industrial Science and Technology, AIST in Japan. Both Mg/Ca and Sr/Ca ratios are shown in Supplementary Fig.…”

Section: Icp-ms Analysesmentioning

confidence: 99%

Past daily light cycle recorded in the strontium/calcium ratios of giant clam shells

et al. 2012

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“…Based on evidence of the influence of water temperatures and isotopic composition ( 18 O w related to salinity) on oxygen isotopic composition of biogenic carbonate ( 18 O shell ) (Urey, 1947;Epstein et al, 1953;Craig, 1965;Emiliani, 1966;Shackleton, 1967;O'Neil et al, 1969),  18 O shell values have been used to estimate past temperature and salinity parameters (Grossman and Ku, 1986;Ingram et al, 1996;Chauvaud et al, 2005;Schöne et al, 2005;Wanamaker et al, 2007). Carbon isotopic ratios of the shell ( 13 C shell ) are derived from the stable carbon isotope ratio of dissolved inorganic carbon ( 13 C DIC ) in seawater (Mook and Vogel, 1968;Mook, 1971;Killingley and Berger, 1979;Arthur et al, 1983), metabolic carbon (Klein et al, 1996;Geist et al, 2005;McConnaughey and Gillikin, 2008) or some combination of the two (Tanaka et al, 1986;McConnaughey et al, 1997;Dettman et al, 1999;Furla et al, 2000;Vander Putten et al, 2000;Lorrain et al, 2004;Gillikin et al, 2006;Chauvaud et al, 2011). Physiological parameters (e.g., growth rates, metabolism, ontogeny, food source variations) can complicate  13 C shell data interpretation due to their influence on biomineralization (Shackleton et al, 1973;Erez, 1978;Swart, 1983;Gonzalez and Lohmann, 1985;McConnaughey, 1989a, b;Owen et al, 2002a, b).…”

Section: Introductionmentioning

confidence: 99%

“…McConnaughey et al (1997) calculated a theoretical metabolic carbon contribution of 10% for aquatic mollusks based on the "respiratory gas exchange model". However, recent experimental and empirical studies have documented several deviations from this model indicating that C M appears to be species-specific (e.g., Lorrain et al, 2004;Gillikin et al, 2006;, even in the marine environment, and that C M shows species-specific variation over the lifetime of an individual (Klein et al, 1996;Lorrain et al, 2004;Gillikin et al, 2009;Butler et al, 2011;Chauvaud et al, 2011). Poulain et al (2010) and Beirne et al (2012) …”

Section: Introductionmentioning

confidence: 99%

Coupling experimental and field-based approaches to decipher carbon sources in the shell of the great scallop, Pecten maximus (L.)

Marchais

Richard

Jolivet

et al. 2015

Geochimica et Cosmochimica Acta

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractThis research investigated how the carbon isotopic composition of food source ( 13 C food ) and dissolved inorganic carbon ( 13 C DIC ) influences the carbon isotopic composition of Pecten maximus shells ( 13 C shell ) under both experimental and natural conditions. The objectives are to better understand the relationship between P. maximus and its environment, and to specifically distinguish conditions under which calcification is influenced by respired CO 2 derived from food sources versus conditions in which calcification uses inorganic carbon from seawater. Laboratory experiment investigated carbon incorporation into shell carbonates by maintaining scallops under conditions where the stable carbon isotopic composition of food sources was considerably depleted (-54‰), relative to values observed in the natural environment (-21‰). Laboratory experiment ran for 78 days under three temperature conditions, 15°C, 21°C and 25°C. A survey of the environmental parameters and stable carbon isotopic composition into shell carbonate of natural population of P. maximus was also realized during the same year in the Bay of Brest, France. Data collected from both laboratory experiment and the natural environment confirmed that both  13 C DIC and  13 C food influence  13 C shell values and that organic carbon incorporation (C M ) averages about 10% (4.3 to 6.8% under experimental conditions and 1.9 to 16.6% in the natural environment). The shift in stable carbon isotopic composition from the uptake of depleted food sources under experimental conditions realized a marked divergence in the predicted equilibrium between calcium carbonate and 2 ambient bicarbonate, relative to the natural environment. This offset was 1.7 ± 0.6‰ for scallops in their natural environment and 2.5 ± 0.5 and 3.2 ± 0.9‰ for scallops under experimental conditions at water temperatures of 15 and 21°C, respectively. The offset of 3‰ for scallops subjected to laboratory experiment could not be explained in light of growth rate but may be related to food supply and/or temperature. Food source and temperature effects may also explain the annual variation observed in C M values measured from scallops in their natural environment. C M estimation from the natural population of P. maximus varied seasonally from around 2% at the end of winter, to 12% in summer. The seasonal variation resembles variability in the carbon isotopic composition of the food sources throughout the year with an exception at the end of winter.

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“…The somewhat particular isotopic and elemental composition of G. vitreus cannot be explained by variation in seawater composition since strontium and magnesium have a long residence time. These elements are homogeneously distributed throughout the ocean, except for minor local variations in salinity in connection with freshwater-seawater mixing (Wolf et al, 1967;Klein et al, 1996a;Klein et al, 1996b). The elevated salinity of the Mediterranean Sea might be expected to lead to a slightly higher Sr and Mg shell composition but this does not fit the low trace elemental contents of G. vitreus.…”

Section: Calcium Isotopesmentioning

confidence: 99%

Stable isotope profiles (Ca, O, C) through modern brachiopod shells of T. septentrionalis and G. vitreus: Implications for calcium isotope paleo-ocean chemistry

et al. 2010

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Brachiopod shells are widely used as an archive to reconstruct elemental and isotopic composition of seawater. Studies, focused on oxygen and carbon isotopes over the last decades, are increasingly extending to the emerging calcium isotope system. To date, only little attention has been paid to test the reliability of fossil brachiopods on their modern counterparts. In this context, the present study investigates two modern brachiopods, Terebratulina septentrionalis (eastern Canada, 5-30 m depth, 7.1°C seasonal temperature variation, two-layer shell) and Gryphus vitreus (northern Mediterranean, 200 m depth, constant all-year round temperature, three-layer shell). Both species were sampled along the ontogenetic growth direction and calcium, oxygen, and carbon isotopes as well as elemental concentration were measured. Calcium isotopes were analyzed on TIMS. The elemental composition was analyzed by LA-ICP-MS and ICP-AES. The results indicate an intra-specimen δ 44/40 Ca variation ranging from 0.16 to 0.33‰, pointing to a fairly homogenous distribution of calcium isotopes in brachiopod shells. However, in the light of the suggested 0.7‰ increase in calcium isotopes over the Phanerozoic such intra-specimen variations constrain ocean reconstruction. δ 44/40 Ca values of T. septentrionalis do not seem to be affected by growth rate. Calcium isotopic values of G. vitreus are heavy in the central part of the shell and trend towards lighter values in peripheral areas approaching the maximum isotopic composition of T. septentrionalis. The maximum interspecies δ 44/40 Ca difference of 0.62‰ between T. septentrionalis and G. vitreus indicates that care should be taken when using different taxa, species with different strontium content or brachiopods with specialized shell structure, such as G. vitreus, for ocean water reconstruction in terms of Ca isotopic composition. T. septentrionalis may record Ca isotopic fractionation related to seasonal seawater temperature variations in its shell but this is difficult to resolve at the current analytical precision. Average δ 18 O-derived temperatures of the two investigated species are close to on-site measured temperatures.

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and ratios in skeletal calcite of Mytilus trossulus: Covariation with metabolic rate, salinity, and carbon isotopic composition of seawater

Cited by 263 publications

References 47 publications

Past daily light cycle recorded in the strontium/calcium ratios of giant clam shells

Past daily light cycle recorded in the strontium/calcium ratios of giant clam shells

Coupling experimental and field-based approaches to decipher carbon sources in the shell of the great scallop, Pecten maximus (L.)

Stable isotope profiles (Ca, O, C) through modern brachiopod shells of T. septentrionalis and G. vitreus: Implications for calcium isotope paleo-ocean chemistry

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