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

13 pages, 10 figures, 1 table

Detalhes bibliográficos
Autores: Crespo, B. G., Keafer, Bruce A., Ralston, David K., Lind, Henry, Farber, Dawson, Anderson, Donald M.
Tipo de documento: artigo
Data de publicação:2011
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/56457
Acesso em linha:http://hdl.handle.net/10261/56457
Access Level:Acceso aberto
Palavra-chave:Paralytic shellfish poisoning
Alexandrium fundyense
Dinoflagellate cysts
Bloom dynamics
Retention mechanism
Nauset marsh system
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spelling Dynamics of Alexandrium fundyense blooms and shellfish toxicity in the Nauset Marsh System of Cape Cod (Massachusetts, USA)Crespo, B. G.Keafer, Bruce A.Ralston, David K.Lind, HenryFarber, DawsonAnderson, Donald M.Paralytic shellfish poisoningAlexandrium fundyenseDinoflagellate cystsBloom dynamicsRetention mechanismNauset marsh system13 pages, 10 figures, 1 tableParalytic 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 drowned kettle holes or salt ponds at the distal ends of the NMS – Salt Pond, Mill Pond, and Town Cove. The central region of the NMS had a much lower concentration of cysts. Two types of A. fundyense blooms were observed. One originated entirely within the estuary, seeded by cysts in the three seedbeds. These blooms developed independently of each other and of the A. fundyense population observed in adjacent coastal waters outside the NMS. The temporal development of the blooms was different in the three salt ponds, with initiation differing by as much as 30 days. These differences do not appear to reflect the initial cyst abundances in these locations, and may simply result from higher cell retention and higher nutrient concentrations in Mill Pond, the first site to bloom. Germination of cysts accounted for a small percentage of the peak cell densities in the ponds, so population size was influenced more by the factors affecting growth than by cyst abundance. Subsurface cell aggregation (surface avoidance) limited advection of the vegetative A. fundyense cells out of the salt ponds through the shallow inlet channels. Thus, the upper reaches of the NMS are at the greatest risk for PSP since the highest cyst abundances and cell concentrations were found there. After these localized blooms in the salt ponds peaked and declined, a second, late season bloom occurred within the central portions of the NMS. The timing of this second bloom relative to those within the salt ponds and the coastal circulation patterns at that time strongly suggest that those cells originated from a regional A. fundyense bloom in the Gulf of Maine, delivered to the central marsh from coastal waters outside the NMS through Nauset Inlet. These results will guide policy decisions about water quality as well as shellfish monitoring and utilization within the NMS and highlight the potential for “surgical” closures of shellfish during PSP events, leaving some areas open for harvesting while others are closedThis work was supported by NOAA Grant NA06OAR4170021, NPS Grant H238015504 and by the Woods Hole Center for Oceans and Human Health through NSF Grants OCE-0911031 and OCE-0430724 and NIEHS Grant 1P50-ES01274201. B.G.C. was supported by a Xunta de Galicia Ángeles Alvariño fellowship and the Stanley W. Watson Chair for Excellence in Oceanography under a Postdoctoral program at the Woods Hole Oceanographic Institution.[SS]Peer reviewedElsevier201220122011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/56457reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1016/j.hal.2011.08.009info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/564572026-05-22T06:33:51Z
dc.title.none.fl_str_mv Dynamics of Alexandrium fundyense blooms and shellfish toxicity in the Nauset Marsh System of Cape Cod (Massachusetts, USA)
title Dynamics of Alexandrium fundyense blooms and shellfish toxicity in the Nauset Marsh System of Cape Cod (Massachusetts, USA)
spellingShingle Dynamics of Alexandrium fundyense blooms and shellfish toxicity in the Nauset Marsh System of Cape Cod (Massachusetts, USA)
Crespo, B. G.
Paralytic shellfish poisoning
Alexandrium fundyense
Dinoflagellate cysts
Bloom dynamics
Retention mechanism
Nauset marsh system
title_short Dynamics of Alexandrium fundyense blooms and shellfish toxicity in the Nauset Marsh System of Cape Cod (Massachusetts, USA)
title_full Dynamics of Alexandrium fundyense blooms and shellfish toxicity in the Nauset Marsh System of Cape Cod (Massachusetts, USA)
title_fullStr Dynamics of Alexandrium fundyense blooms and shellfish toxicity in the Nauset Marsh System of Cape Cod (Massachusetts, USA)
title_full_unstemmed Dynamics of Alexandrium fundyense blooms and shellfish toxicity in the Nauset Marsh System of Cape Cod (Massachusetts, USA)
title_sort Dynamics of Alexandrium fundyense blooms and shellfish toxicity in the Nauset Marsh System of Cape Cod (Massachusetts, USA)
dc.creator.none.fl_str_mv Crespo, B. G.
Keafer, Bruce A.
Ralston, David K.
Lind, Henry
Farber, Dawson
Anderson, Donald M.
author Crespo, B. G.
author_facet Crespo, B. G.
Keafer, Bruce A.
Ralston, David K.
Lind, Henry
Farber, Dawson
Anderson, Donald M.
author_role author
author2 Keafer, Bruce A.
Ralston, David K.
Lind, Henry
Farber, Dawson
Anderson, Donald M.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Paralytic shellfish poisoning
Alexandrium fundyense
Dinoflagellate cysts
Bloom dynamics
Retention mechanism
Nauset marsh system
topic Paralytic shellfish poisoning
Alexandrium fundyense
Dinoflagellate cysts
Bloom dynamics
Retention mechanism
Nauset marsh system
description 13 pages, 10 figures, 1 table
publishDate 2011
dc.date.none.fl_str_mv 2011
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/56457
url http://hdl.handle.net/10261/56457
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1016/j.hal.2011.08.009
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,198674

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