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1 March 2005 A Nondestructive Method to Evaluate Population Structure and Bioerosion Activity of the Boring Bivalve Gastrochaena dubia
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Abstract

The Eastern Atlantic-Mediterranean boring bivalve Gastrochaena dubia (Mollusca: Gastrochaenidae) has a characteristically ‘8’ shaped calcareous chimney which encircles the siphonal aperture. The ‘8’ length (major axis) is strongly correlated with the valve dimensions (length and height) as well as the volume of the chamber bioeroded by the mollusc. Thanks to the relative robustness of this calcareous structure, it is possible to obtain, using plastiline material directly underwater, moulds of the siphonal aperture. These moulds allow to draw either population structure and bioeroding activity of G. dubia. This new method of measure results to be cheap, accurate and thanks to its non destructive properties, applicable also in Marine Protected Areas (MPAs).

Stefano Schiaparelli, Giada Franci, Giancarlo Albertelli, and Riccardo Cattaneo-Vietti "A Nondestructive Method to Evaluate Population Structure and Bioerosion Activity of the Boring Bivalve Gastrochaena dubia," Journal of Coastal Research 2005(212), 383-386, (1 March 2005). https://doi.org/10.2112/03-0054.1
Received: 21 August 2003; Accepted: 1 August 2003; Published: 1 March 2005
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