Molluscan shell proteins

Marin, Frédéric; Luquet, Gilles

doi:10.1016/j.crpv.2004.07.009

Cited by 307 publications

(219 citation statements)

References 145 publications

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“…Higher growth rates would also increase metabolic rates and thus lower shell δ 13 C. Finally, it can be argued that the [Ba/Ca] shell peaks can be caused by higher 640 organic matter content in the shell. Bivalve shells can contain up to 5 % organic matter (see Marin and Luquet, 2004, and references therein) and Ba is known to be associated with organic matter (Lea and Boyle, 1993). However, neither Hart et al (1997) nor Sinclair (2005) found a relationship between organic matter and Ba concentrations in other biogenic carbonates (i.e., corals), and Rosenthal and Katz 645 (1989) suggest that Ba is bound to the crystal in mollusks.…”

Section: High Resolution Barium Profilesmentioning

confidence: 99%

Barium uptake into the shells of the common mussel (Mytilus edulis) and the potential for estuarine paleo-chemistry reconstruction

Gillikin

Dehairs

Lorrain

et al. 2006

Geochimica et Cosmochimica Acta

168

164

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Section: High Resolution Barium Profilesmentioning

confidence: 99%

Barium uptake into the shells of the common mussel (Mytilus edulis) and the potential for estuarine paleo-chemistry reconstruction

Gillikin

Dehairs

Lorrain

et al. 2006

Geochimica et Cosmochimica Acta

168

164

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“…Mollusc shells are initially produced during their larval development, at the end of the gastrulation phase, following an increase in thickness of epithelial cells that will define the future shell field (Marin and Luquet 2004). When shell field cells invaginate to form the shell gland, the remaining surface cells start to produce the outermost organic shell layer, the periostracum (Eyster 1986).…”

Section: Calcification and Shell Growthmentioning

confidence: 99%

“…Adult molluscan shells are commonly comprised of aragonite, sometimes calcite and, in certain taxa, layers of both calcite and aragonite (Addadi et al 2006). Shell organic matrices are essential to form the shell structures (Marin and Luquet 2004).…”

Section: Calcification and Shell Growthmentioning

confidence: 99%

Impacts of ocean acidification on marine shelled molluscs

et al. 2013

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Over the next century, elevated quantities of atmospheric CO 2 are expected to penetrate into the oceans, causing a reduction in pH (-0.3/-0.4 pH unit in the surface ocean) and in the concentration of carbonate ions (so-called ocean acidification). Of growing concern are the impacts that this will have on marine and estuarine organisms and ecosystems. Marine shelled molluscs, which colonized a large latitudinal gradient and can be found from intertidal to deep-sea habitats, are economically and ecologically important species providing essential ecosystem services including habitat structure for benthic organisms, water purification and a food source for other organisms. The effects of ocean acidification on the growth and shell production by juvenile and adult shelled molluscs are variable among species and even within the same species, precluding the drawing of a general picture. This is, however, not the case for pteropods, with all species tested so far, being negatively impacted by ocean acidification. The blood of shelled molluscs may exhibit lower pH with consequences for several physiological processes (e.g. respiration, excretion, etc.) and, in some cases, increased mortality in the long term. While fertilization may remain unaffected by elevated pCO 2 , embryonic and larval development will be highly sensitive with important reductions in size and decreased survival of larvae, increases in the number of abnormal larvae and an increase in the developmental time. There are big gaps in the current understanding of the biological consequences of an Communicated by S. Dupont.Frédéric Gazeau and Laura M. Parker have contributed equally to this work.Electronic supplementary material The online version of this article

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“…Shell cross sections exhibit two or three super-imposed calcium carbonate layers, made of either aragonite or calcite (Marin and Luquet, 2004). Mollusks precipitate carbonate from ambient seawater such that the structure composition, carbon and oxygen stable isotopic ratios, and other features of successive shell bands record environmental conditions (Davenport, 1938;Stanton and Dodd, 1970;Krantz et al, 1987;Schöne et al, 2003).…”

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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Molluscan shell proteins

Cited by 307 publications

References 145 publications

Barium uptake into the shells of the common mussel (Mytilus edulis) and the potential for estuarine paleo-chemistry reconstruction

Barium uptake into the shells of the common mussel (Mytilus edulis) and the potential for estuarine paleo-chemistry reconstruction

Impacts of ocean acidification on marine shelled molluscs

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

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