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Repeatable sediment associations of burrowing bivalves across six European tidal flat systems

Compton, Tanya J., Troost, Tineke A., Drent, Jan, Kraan, Casper, Bocher, Pierrick, Leyrer, Jutta, Dekinga, Anne and Piersma, Theunis 2009, Repeatable sediment associations of burrowing bivalves across six European tidal flat systems, Marine ecology progress series, vol. 382, pp. 87-98, doi: 10.3354/meps07964.

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Title Repeatable sediment associations of burrowing bivalves across six European tidal flat systems
Author(s) Compton, Tanya J.
Troost, Tineke A.
Drent, Jan
Kraan, Casper
Bocher, Pierrick
Leyrer, Jutta
Dekinga, Anne
Piersma, Theunis
Journal name Marine ecology progress series
Volume number 382
Start page 87
End page 98
Publisher Inter-Research
Place of publication Oldendorf, Germany
Publication date 2009
ISSN 0171-8630
1616-1599
Keyword(s) habitat suitability model
the wash
German Wadden Sea
logistic regression
species distribution
Summary Burrowing bivalves are associated with particular sediment types within sedimentary systems. The degree to which bivalve sediment associations are repeatable across systems has seldom been investigated. To investigate whether such repeatability exists across tidal flats, we compared adult and juvenile distributions of 3 bivalve species (Cerastoderma edule, Scrobicularia plana, Macoma balthica) across 6 European tidal flats. Across systems, the adult bivalves showed fairly repeatable distributions, with C. edule occurring in sandy sediments and M. balthica and S. plana occurring in muddy sediments. Exceptions were observed in systems composed primarily of muddy sediments (Aiguillon Bay and Marennes-Oléron Bay) and the Dutch Wadden Sea. Interestingly, juveniles and adults of C. edule and S. plana showed similar distributions across systems. M. balthica juveniles and adults showed habitat separation in 3 of the 6 studied systems; in 2 of these, it has been shown previously that juvenile M. balthica settle in mud at high tidal levels and migrate to lower sandier flats later in life. The high occurrence of juvenile M. balthica towards high sandy flats in Mont Saint-Michel Bay suggests that juveniles might choose high tidal flats rather than muddy sediments per se. A repeatable association in adults and juveniles with respect to sediment could suggest that juveniles actively settle in the proximity of the adults and/or that juveniles settling away from the adults incur a higher mortality due to either predation, physiological stress, or other factors.

Language eng
DOI 10.3354/meps07964
Field of Research 060205 Marine and Estuarine Ecology (incl Marine Ichthyology)
Socio Economic Objective 960802 Coastal and Estuarine Flora, Fauna and Biodiversity
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2009, Inter-Research
Persistent URL http://hdl.handle.net/10536/DRO/DU:30039234

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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