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Autoecology and morphological variability of Dinophysis sacculus (Dinophyceae: Dinophysiaceae) in a Mediterranean lagoon
Caroppo, C. (2001). Autoecology and morphological variability of Dinophysis sacculus (Dinophyceae: Dinophysiaceae) in a Mediterranean lagoon. J. Mar. Biol. Ass. U.K. 81: 11-21
In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154, more
Peer reviewed article  

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Keyword
    Marine

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  • Caroppo, C.

Abstract
    Dinophysis sacculus (Dinophyceae) is a potential producer of diarrhoeic shellfish poisoning (DSP). Population dynamics of this dinoflagellate was followed in the Varano lagoon, south-east Italy, with the objective of determining the seasonal abundance of D. sacculus and the relationship to environmental factors. The seasonal occurrence of this dinoflagellate showed a rather wide temporal distribution and increases in cell numbers were observed in late June and November. Dinophysis numbers seasonal changes appeared to be dependent on chemico-physical factors and dissolved nutrients. Three morphologically distinct forms of D. sacculus were found during the sampling period (March 1997- February 1998) related to the life history of the species and not to environmental conditions. In this mussel fishery, D. sacculus presence and proliferation were not associated with biotoxicity.

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