Modelling the Spatial and Temporal Dynamics of Paralytic Shellfish Toxins (PST) at Different Scales: Implications for Research and Management

Harmful algal blooms, in particular recurrent blooms of the dinoflagellate Alexandrium catenella, associated with paralytic shellfish poisoning (PSP), frequently limit commercial shellfish harvests, resulting in serious socio-economic consequences. Although the PSP-inducing species that threaten the...

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Autores: Díaz, Patricio A, Molinet, Carlos, Seguel, Miriam, Niklitschek, Edwin J., Díaz, Manuel, Álvarez, Gonzalo, Pérez-Santos, Iván, Varela, Daniel, Guzmán, Leonardo, Rodríguez-Villegas, Camilo, Figueroa, Rosa Isabel
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2022
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/343454
Acesso em linha:http://hdl.handle.net/10261/343454
https://api.elsevier.com/content/abstract/scopus_id/85142613036
Access Level:Acceso aberto
Palavra-chave:Alexandrium catenella
Chilean fjords
detoxification dynamics
paralytic shellfish poisoning (PSP)
paralytic shellfish toxins (PST)
spatial scales
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spelling Modelling the Spatial and Temporal Dynamics of Paralytic Shellfish Toxins (PST) at Different Scales: Implications for Research and ManagementDíaz, Patricio AMolinet, CarlosSeguel, MiriamNiklitschek, Edwin J.Díaz, ManuelÁlvarez, GonzaloPérez-Santos, IvánVarela, DanielGuzmán, LeonardoRodríguez-Villegas, CamiloFigueroa, Rosa IsabelAlexandrium catenellaChilean fjordsdetoxification dynamicsparalytic shellfish poisoning (PSP)paralytic shellfish toxins (PST)spatial scalesHarmful algal blooms, in particular recurrent blooms of the dinoflagellate Alexandrium catenella, associated with paralytic shellfish poisoning (PSP), frequently limit commercial shellfish harvests, resulting in serious socio-economic consequences. Although the PSP-inducing species that threaten the most vulnerable commercial species of shellfish are very patchy and spatially heterogeneous in their distribution, the spatial and temporal scales of their effects have largely been ignored in monitoring programs and by researchers. In this study, we examined the spatial and temporal dynamics of PSP toxicity in the clam (Ameghinomya antiqua) in two fishing grounds in southern Chile (Ovalada Island and Low Bay). During the summer of 2009, both were affected by an intense toxic bloom of A. catenella (up to 1.1 × 106 cells L-1). Generalized linear models were used to assess the potential influence of different environmental variables on the field detoxification rates of PSP toxins over a period of 12 months. This was achieved using a four parameter exponential decay model to fit and compare field detoxification rates per sampling site. The results show differences in the spatial variability and temporal dynamics of PSP toxicity, given that greater toxicities (+10-fold) and faster detoxification (20% faster) are observed at the Ovalada Island site, the less oceanic zone, and where higher amounts of clam are annually produced. Our observations support the relevance of considering different spatial and temporal scales to obtain more accurate assessments of PSP accumulation and detoxification dynamics and to improve the efficacy of fisheries management after toxic events.This research was funded by FONDEF Project MR07I1007 from the 2nd Program on Red Tides and the project REDI170575 from the International Cooperation Programme of the Chilean National Commission for Scientific and Technological Research (CONICYT). Patricio A. Díaz is funded by the Centro de Biotecnología y Bioingeniería (CeBiB) (PIA project FB0001, ANID, Chile). Rosa I. Figueroa is funded by a national project from the Spanish Ministry of Science and Innovation and the European Community (FEDER) (Project DIANAS-CTM2017- 86066-R), a grant for Galician Networks of Excellence (GRC-VGO- HAB IN607A-2019/04) from the Innovation Agency of the Xunta de Galicia (GAIN) and the structural IEO-CSIC project CCVIEO-7.Peer reviewedMultidisciplinary Digital Publishing InstituteComisión Nacional de Investigación Científica y Tecnológica (Chile)Centro de Biotecnología y Bioingeniería (Chile)Ministerio de Ciencia e Innovación (España)Xunta de GaliciaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/343454https://api.elsevier.com/content/abstract/scopus_id/85142613036reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2017-86066-RToxinshttps://doi.org/10.3390/toxins14110786Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3434542026-05-22T06:33:51Z
dc.title.none.fl_str_mv Modelling the Spatial and Temporal Dynamics of Paralytic Shellfish Toxins (PST) at Different Scales: Implications for Research and Management
title Modelling the Spatial and Temporal Dynamics of Paralytic Shellfish Toxins (PST) at Different Scales: Implications for Research and Management
spellingShingle Modelling the Spatial and Temporal Dynamics of Paralytic Shellfish Toxins (PST) at Different Scales: Implications for Research and Management
Díaz, Patricio A
Alexandrium catenella
Chilean fjords
detoxification dynamics
paralytic shellfish poisoning (PSP)
paralytic shellfish toxins (PST)
spatial scales
title_short Modelling the Spatial and Temporal Dynamics of Paralytic Shellfish Toxins (PST) at Different Scales: Implications for Research and Management
title_full Modelling the Spatial and Temporal Dynamics of Paralytic Shellfish Toxins (PST) at Different Scales: Implications for Research and Management
title_fullStr Modelling the Spatial and Temporal Dynamics of Paralytic Shellfish Toxins (PST) at Different Scales: Implications for Research and Management
title_full_unstemmed Modelling the Spatial and Temporal Dynamics of Paralytic Shellfish Toxins (PST) at Different Scales: Implications for Research and Management
title_sort Modelling the Spatial and Temporal Dynamics of Paralytic Shellfish Toxins (PST) at Different Scales: Implications for Research and Management
dc.creator.none.fl_str_mv Díaz, Patricio A
Molinet, Carlos
Seguel, Miriam
Niklitschek, Edwin J.
Díaz, Manuel
Álvarez, Gonzalo
Pérez-Santos, Iván
Varela, Daniel
Guzmán, Leonardo
Rodríguez-Villegas, Camilo
Figueroa, Rosa Isabel
author Díaz, Patricio A
author_facet Díaz, Patricio A
Molinet, Carlos
Seguel, Miriam
Niklitschek, Edwin J.
Díaz, Manuel
Álvarez, Gonzalo
Pérez-Santos, Iván
Varela, Daniel
Guzmán, Leonardo
Rodríguez-Villegas, Camilo
Figueroa, Rosa Isabel
author_role author
author2 Molinet, Carlos
Seguel, Miriam
Niklitschek, Edwin J.
Díaz, Manuel
Álvarez, Gonzalo
Pérez-Santos, Iván
Varela, Daniel
Guzmán, Leonardo
Rodríguez-Villegas, Camilo
Figueroa, Rosa Isabel
author2_role author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Comisión Nacional de Investigación Científica y Tecnológica (Chile)
Centro de Biotecnología y Bioingeniería (Chile)
Ministerio de Ciencia e Innovación (España)
Xunta de Galicia
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Alexandrium catenella
Chilean fjords
detoxification dynamics
paralytic shellfish poisoning (PSP)
paralytic shellfish toxins (PST)
spatial scales
topic Alexandrium catenella
Chilean fjords
detoxification dynamics
paralytic shellfish poisoning (PSP)
paralytic shellfish toxins (PST)
spatial scales
description Harmful algal blooms, in particular recurrent blooms of the dinoflagellate Alexandrium catenella, associated with paralytic shellfish poisoning (PSP), frequently limit commercial shellfish harvests, resulting in serious socio-economic consequences. Although the PSP-inducing species that threaten the most vulnerable commercial species of shellfish are very patchy and spatially heterogeneous in their distribution, the spatial and temporal scales of their effects have largely been ignored in monitoring programs and by researchers. In this study, we examined the spatial and temporal dynamics of PSP toxicity in the clam (Ameghinomya antiqua) in two fishing grounds in southern Chile (Ovalada Island and Low Bay). During the summer of 2009, both were affected by an intense toxic bloom of A. catenella (up to 1.1 × 106 cells L-1). Generalized linear models were used to assess the potential influence of different environmental variables on the field detoxification rates of PSP toxins over a period of 12 months. This was achieved using a four parameter exponential decay model to fit and compare field detoxification rates per sampling site. The results show differences in the spatial variability and temporal dynamics of PSP toxicity, given that greater toxicities (+10-fold) and faster detoxification (20% faster) are observed at the Ovalada Island site, the less oceanic zone, and where higher amounts of clam are annually produced. Our observations support the relevance of considering different spatial and temporal scales to obtain more accurate assessments of PSP accumulation and detoxification dynamics and to improve the efficacy of fisheries management after toxic events.
publishDate 2022
dc.date.none.fl_str_mv 2022
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/343454
https://api.elsevier.com/content/abstract/scopus_id/85142613036
url http://hdl.handle.net/10261/343454
https://api.elsevier.com/content/abstract/scopus_id/85142613036
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2017-86066-R
Toxins
https://doi.org/10.3390/toxins14110786
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
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)
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