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Article

Attachment of oysters to natural substrata by biologically induced marine carbonate cement

Citation
MacDonald J, Freer A & Cusack M (2010) Attachment of oysters to natural substrata by biologically induced marine carbonate cement. Marine Biology, 157 (9), pp. 2087-2095. https://doi.org/10.1007/s00227-010-1476-7

Abstract
Oysters live permanently immobilised by cementation of the left valve to a hard substrate. The contact zone between oysters and natural substrata has been analysed using SEM imaging, electron dispersive X-ray microanalysis, electron backscatter diffraction and Raman spectroscopy and reveals the influence of both biogenic and non-biogenic processes in oyster cementation. Original adhesion is brought about by secretion of an organic component that acts as a nucleating surface onto which crystals precipitate. These crystals have a random orientation and are composed of high Mg calcite. This suggests that the crystals nucleating on the glue substrate are outwith the biological control experienced by the shell biomineralisation process and are formed by inorganic precipitation from seawater. It is proposed that oysters do not control or secrete crystalline cement. Instead, they adhere by secretion of an organic film onto which crystals precipitate from seawater. © 2010 Springer-Verlag.

Journal
Marine Biology: Volume 157, Issue 9

StatusPublished
Author(s)MacDonald, Joanne; Freer, Andy; Cusack, Maggie
Publication date30/09/2010
Publication date online05/06/2010
Date accepted by journal10/05/2010
URLhttp://hdl.handle.net/1893/24992
PublisherSpringer
ISSN0025-3162
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