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1. Influences of sedimentation and hydrodynamics on the spatial distribution of Alexandrium catenella/tamarense resting cysts in a shellfish farming lagoon impacted by toxic blooms

Author

David Mouillot, Thierry Laugier, Mohamed Laabir, Benjamin Genovesi, André Vaquer, Daniel Grzebyk, and Annie Fiandrino

Subjects
Alexandrium catenella, education.field_of_study, Ecology, fungi, Population, Sediment, Plant Science, Aquatic Science, Sedimentation, Biology, biology.organism_classification, Spatial distribution, Oceanography, Alexandrium tamarense, parasitic diseases, education, Shellfish, Dinophyceae
Abstract

Since resting cysts are a potential seeding source for blooms, the presence of these cysts in sediments is a marker of an established population for a number of harmful algal species. The spatial patterns of cyst density in relation to sediment characteristics and hydrodynamics are still largely misunderstood. This study investigated the spatial distribution of resting cysts belonging to the Alexandrium tamarense species complex (Dinophyceae) in sediments of a Mediterranean coastal lagoon (Thau Lagoon, France). This lagoon, hosting shellfish farming, is regularly impacted by toxic Alexandrium catenella blooms. The average cyst density across the whole lagoon was rather low

Published
2013
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