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Dynamics of Alexandrium fundyense blooms and shellfish toxicity in the Nauset Marsh System of Cape Cod Massachusetts, USA



Dynamics of Alexandrium fundyense blooms and shellfish toxicity in the Nauset Marsh System of Cape Cod Massachusetts, USA



Harmful Algae 12(none): 0-38



Paralytic Shellfish Poisoning (PSP) toxins are annually recurrent along the Massachusetts coastline (USA), which includes many small embayments and salt ponds. Among these is the Nauset Marsh System (NMS), which has a long history of PSP toxicity. Little is known, however, about the bloom dynamics of the causative organism Alexandrium fundyense within that economically and socially important system. The overall goal of this work was to characterize the distribution and dynamics of A. fundyense blooms within the NMS and adjacent coastal waters by documenting the distribution and abundance of resting cysts and vegetative cells. Cysts were found predominantly in three. Highlights: We study Alexandrium fundyense blooms in an important embayment in Cape Cod. We map the distribution and abundance of A.fundyense resting cysts. We study the possibility of advection of cells from the ocean outside the system. There is a direct link between the cyst and the initiation of early-season blooms. Factors regulating growth and cell accumulation determine A.fundyense population size.

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Accession: 036190209

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DOI: 10.1016/j.hal.2011.08.009


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