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dc.contributor.author
Hattenrath Lehmann, Theresa K.
dc.contributor.author
Marcoval, Maria Alejandra
dc.contributor.author
Berry, Dianna L.
dc.contributor.author
Fire, Spencer
dc.contributor.author
Wang, Zhihong
dc.contributor.author
Morton, Steve L,
dc.contributor.author
Gobler, Christopher J.
dc.date.available
2017-09-26T15:23:50Z
dc.date.issued
2013-03
dc.identifier.citation
Hattenrath Lehmann, Theresa K.; Marcoval, Maria Alejandra; Berry, Dianna L.; Fire, Spencer; Wang, Zhihong; et al.; The emergence of Dinophysis acuminata blooms and DSP toxins in shellfish in New York waters; Elsevier Science; Harmful Algae; 26; 3-2013; 33-44
dc.identifier.issn
1568-9883
dc.identifier.uri
http://hdl.handle.net/11336/25103
dc.description.abstract
The dynamics of Dinophysis acuminata and its associated diarrhetic shellfish poisoning (DSP) toxins, okadaic acid (OA) and dinophysistoxin-1 (DTX1) as well as pectenotoxins (PTXs), were investigated within plankton and shellfish in Northport Bay, NY, USA, over a four year period (2008–2011). Over the course of the study, Dinophysis bloom densities ranged from 104 to 106 cells L1 and exceeded 106 L1 in 2011 when levels of total OA, total DTX1, and PTX in the water column were 188, 86, and 2900 pg mL1 , respectively, with the majority of the DSP toxins present as esters. These cell densities exceed – by two orders of magnitude – those previously reported within thousands of samples collected from NY waters from 1971 to 1986. The bloom species was positively identified as D. acuminata via scanning electron microscopy and genetic sequencing (cox1 gene). The cox1 gene sequence from the D. acuminata populations in Northport Bay was 100% identical to D. acuminata from Narragansett Bay, RI, USA and formed a strongly supported phylogenetic cluster (posterior probability = 1) that included D. acuminata and Dinophysis ovum from systems along the North Atlantic Ocean. Shellfish collected from Northport Bay during the 2011 bloom had DSP toxin levels (1245 ng g1 total OA congeners) far exceeding the USFDA action level (160 ng g1 total OA of shellfish tissue) representing the first such occurrence on the East Coast of the U.S. D. acuminata blooms co-occurred with paralytic shellfish poisoning (PSP) causing blooms of Alexandrium fundyense during late spring each year of the study. D. acuminata cell abundances were significantly correlated with levels of total phytoplankton biomass and Mesodinium spp., suggesting food web interactions may influence the dynamics of these blooms. Given that little is known regarding the combined effects of DSP and PSP toxins on human health and the concurrent accumulation and depuration of these toxins in shellfish, these blooms represent a novel managerial challenge.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Alexandrium
dc.subject
Dinophysis
dc.subject
Dsp
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North America
dc.subject
Psp
dc.subject
Shellfish
dc.subject.classification
Bioquímica y Biología Molecular
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
The emergence of Dinophysis acuminata blooms and DSP toxins in shellfish in New York waters
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-09-21T18:00:33Z
dc.journal.volume
26
dc.journal.pagination
33-44
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Hattenrath Lehmann, Theresa K.. Stony Brook University; Estados Unidos
dc.description.fil
Fil: Marcoval, Maria Alejandra. Stony Brook University; Estados Unidos. Universidad Nacional de Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Berry, Dianna L.. Stony Brook University; Estados Unidos
dc.description.fil
Fil: Fire, Spencer. National Ocean Service; Estados Unidos
dc.description.fil
Fil: Wang, Zhihong. National Ocean Service; Estados Unidos
dc.description.fil
Fil: Morton, Steve L,. National Ocean Service; Estados Unidos
dc.description.fil
Fil: Gobler, Christopher J.. Stony Brook University; Estados Unidos
dc.journal.title
Harmful Algae
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1568988313000474
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.hal.2013.03.005
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