Spatiotemporal distribution of paralytic shellfish poisoning (PSP) toxins in shellfish from Argentine Patagonian coast

Harmful algal blooms (HABs) have been recorded in the Chubut Province, Argentina, since 1980, mainly associated with the occurrence of paralytic shellfish poisoning (PSP) toxins produced by dinoflagellates of the genus Alexandrium. PSP events in this area impact on fisheries management and are also...

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Autores principales:	Gracia Villalobos, Leilén, Santinelli, Norma H., Sastre, Alicia V., Marino, Germán, Almandoz, Gastón Osvaldo
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2019
Materias:	Biología Environmental science Aquatic ecology Marine biology Environmental risk assessment Environmental toxicology Toxicology Alexandrium catenella Harmful algal blooms Monitoring programmes Bivalves Mouse bioassays
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/107503 http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC6595239&blobtype=pdf
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-107503
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Biología Environmental science Aquatic ecology Marine biology Environmental risk assessment Environmental toxicology Toxicology Alexandrium catenella Harmful algal blooms Monitoring programmes Bivalves Mouse bioassays
spellingShingle	Biología Environmental science Aquatic ecology Marine biology Environmental risk assessment Environmental toxicology Toxicology Alexandrium catenella Harmful algal blooms Monitoring programmes Bivalves Mouse bioassays Gracia Villalobos, Leilén Santinelli, Norma H. Sastre, Alicia V. Marino, Germán Almandoz, Gastón Osvaldo Spatiotemporal distribution of paralytic shellfish poisoning (PSP) toxins in shellfish from Argentine Patagonian coast
topic_facet	Biología Environmental science Aquatic ecology Marine biology Environmental risk assessment Environmental toxicology Toxicology Alexandrium catenella Harmful algal blooms Monitoring programmes Bivalves Mouse bioassays
description	Harmful algal blooms (HABs) have been recorded in the Chubut Province, Argentina, since 1980, mainly associated with the occurrence of paralytic shellfish poisoning (PSP) toxins produced by dinoflagellates of the genus Alexandrium. PSP events in this area impact on fisheries management and are also responsible for severe human intoxications by contaminated shellfish. Within the framework of a HAB monitoring program carried out at several coastal sites along the Chubut Province, we analyzed spatiotemporal patterns of PSP toxicity in shellfish during 2000–2011. The highest frequency of mouse bioassays exceeding the regulatory limit for human consumption was detected in spring and summer, with average values of up to 70% and 50%, respectively. By contrast, a lower percentage of positive bioassays (2–8%) or no toxicity at all was usually detected during autumn and winter. The most intense PSP events were usually observed between November and January, with values of up to 4,000 μg STX eq 100 g1 , and showed a marked interannual variability both in their magnitude and location. In addition, a severe PSP outbreak was recorded during autumn, 2009, at Camarones Bay, with toxicity values of up to 14,000 μg STX eq 100 g1 . The scallop Aequipecten tehuelchus showed significantly higher toxicity values compared to other shellfish species in SJG and SMG, suggesting a lower detoxification capacity. Our results contribute to the understanding of HABs dynamics on the Argentine Patagonian coast.
format	Articulo Articulo
author	Gracia Villalobos, Leilén Santinelli, Norma H. Sastre, Alicia V. Marino, Germán Almandoz, Gastón Osvaldo
author_facet	Gracia Villalobos, Leilén Santinelli, Norma H. Sastre, Alicia V. Marino, Germán Almandoz, Gastón Osvaldo
author_sort	Gracia Villalobos, Leilén
title	Spatiotemporal distribution of paralytic shellfish poisoning (PSP) toxins in shellfish from Argentine Patagonian coast
title_short	Spatiotemporal distribution of paralytic shellfish poisoning (PSP) toxins in shellfish from Argentine Patagonian coast
title_full	Spatiotemporal distribution of paralytic shellfish poisoning (PSP) toxins in shellfish from Argentine Patagonian coast
title_fullStr	Spatiotemporal distribution of paralytic shellfish poisoning (PSP) toxins in shellfish from Argentine Patagonian coast
title_full_unstemmed	Spatiotemporal distribution of paralytic shellfish poisoning (PSP) toxins in shellfish from Argentine Patagonian coast
title_sort	spatiotemporal distribution of paralytic shellfish poisoning (psp) toxins in shellfish from argentine patagonian coast
publishDate	2019
url	http://sedici.unlp.edu.ar/handle/10915/107503 http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC6595239&blobtype=pdf
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bdutipo_str	Repositorios
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Spatiotemporal distribution of paralytic shellfish poisoning (PSP) toxins in shellfish from Argentine Patagonian coast

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