Toxic Algal Bloom Recurrence in the Era of Global Change: Lessons from the Chilean Patagonian Fjords

Toxic and harmful algal blooms (HABs) are a global problem affecting human health, marine ecosystems, and coastal economies, the latter through their impact on aquaculture, fisheries, and tourism. As our knowledge and the techniques to study HABs advance, so do international monitoring efforts, whic...

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Detalles Bibliográficos
Autores: Díaz, Patricio Andrés, Figueroa, Rosa Isabel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/332561
Acceso en línea:http://hdl.handle.net/10261/332561
Access Level:acceso abierto
Palabra clave:Harmful algal blooms
Climate change
Phycotoxins
Fish-killing
Socioeconomic impacts
Chilean Patagonia
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spelling Toxic Algal Bloom Recurrence in the Era of Global Change: Lessons from the Chilean Patagonian FjordsDíaz, Patricio AndrésFigueroa, Rosa IsabelHarmful algal bloomsClimate changePhycotoxinsFish-killingSocioeconomic impactsChilean PatagoniaToxic and harmful algal blooms (HABs) are a global problem affecting human health, marine ecosystems, and coastal economies, the latter through their impact on aquaculture, fisheries, and tourism. As our knowledge and the techniques to study HABs advance, so do international monitoring efforts, which have led to a large increase in the total number of reported cases. However, in addition to increased detections, environmental factors associated with global change, mainly high nutrient levels and warming temperatures, are responsible for the increased occurrence, persistence, and geographical expansion of HABs. The Chilean Patagonian fjords provide an “open-air laboratory” for the study of climate change, including its impact on the blooms of several toxic microalgal species, which, in recent years, have undergone increases in their geographical range as well as their virulence and recurrence (the species Alexandrium catenella, Pseudochattonella verruculosa, and Heterosigma akashiwo, and others of the genera Dinophysis and Pseudo-nitzschia). Here, we review the evolution of HABs in the Chilean Patagonian fjords, with a focus on the established connections between key features of HABs (expansion, recurrence, and persistence) and their interaction with current and predicted global climate-change-related factors. We conclude that large-scale climatic anomalies such as the lack of rain and heat waves, events intensified by climate change, promote the massive proliferation of these species by creating ideal conditions for their growth and persistence, as they affect water-column stratification, nutrient inputs, and reproductive rates.This research was funded by ANID-FONDECYT 1231220 and by the Centre for Biotechnology and Bioengineering (CeBiB) (PIA project FB0001, ANID, Chile) from the National Research and Development Agency (ANID), Chile. Rosa I. Figueroa was funded by a national project from the Spanish Ministry of Science and Innovation and the European Community, European Regional Development Fund (ERDF; Project BIOTOX PID2021-1256430B-C22). This is a contribution to SCOR WG #165 MixONET, which is supported by grant OCE-214035 from the National Science Foundation to the Scientific Committee on Oceanic Research (SCOR) and contributions from SCOR National Committees.Peer reviewedMultidisciplinary Digital Publishing InstituteFondo Nacional de Desarrollo Científico y Tecnológico (Chile)Agencia Nacional de Investigación y Desarrollo (Chile)Ministerio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)Scientific Committee on Oceanic ResearchConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2023202320232023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/332561reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI//PID2021-1256430B-C22https://doi.org/10.3390/microorganisms11081874Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3325612026-05-22T06:33:51Z
dc.title.none.fl_str_mv Toxic Algal Bloom Recurrence in the Era of Global Change: Lessons from the Chilean Patagonian Fjords
title Toxic Algal Bloom Recurrence in the Era of Global Change: Lessons from the Chilean Patagonian Fjords
spellingShingle Toxic Algal Bloom Recurrence in the Era of Global Change: Lessons from the Chilean Patagonian Fjords
Díaz, Patricio Andrés
Harmful algal blooms
Climate change
Phycotoxins
Fish-killing
Socioeconomic impacts
Chilean Patagonia
title_short Toxic Algal Bloom Recurrence in the Era of Global Change: Lessons from the Chilean Patagonian Fjords
title_full Toxic Algal Bloom Recurrence in the Era of Global Change: Lessons from the Chilean Patagonian Fjords
title_fullStr Toxic Algal Bloom Recurrence in the Era of Global Change: Lessons from the Chilean Patagonian Fjords
title_full_unstemmed Toxic Algal Bloom Recurrence in the Era of Global Change: Lessons from the Chilean Patagonian Fjords
title_sort Toxic Algal Bloom Recurrence in the Era of Global Change: Lessons from the Chilean Patagonian Fjords
dc.creator.none.fl_str_mv Díaz, Patricio Andrés
Figueroa, Rosa Isabel
author Díaz, Patricio Andrés
author_facet Díaz, Patricio Andrés
Figueroa, Rosa Isabel
author_role author
author2 Figueroa, Rosa Isabel
author2_role author
dc.contributor.none.fl_str_mv Fondo Nacional de Desarrollo Científico y Tecnológico (Chile)
Agencia Nacional de Investigación y Desarrollo (Chile)
Ministerio de Ciencia e Innovación (España)
Agencia Estatal de Investigación (España)
Scientific Committee on Oceanic Research
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Harmful algal blooms
Climate change
Phycotoxins
Fish-killing
Socioeconomic impacts
Chilean Patagonia
topic Harmful algal blooms
Climate change
Phycotoxins
Fish-killing
Socioeconomic impacts
Chilean Patagonia
description Toxic and harmful algal blooms (HABs) are a global problem affecting human health, marine ecosystems, and coastal economies, the latter through their impact on aquaculture, fisheries, and tourism. As our knowledge and the techniques to study HABs advance, so do international monitoring efforts, which have led to a large increase in the total number of reported cases. However, in addition to increased detections, environmental factors associated with global change, mainly high nutrient levels and warming temperatures, are responsible for the increased occurrence, persistence, and geographical expansion of HABs. The Chilean Patagonian fjords provide an “open-air laboratory” for the study of climate change, including its impact on the blooms of several toxic microalgal species, which, in recent years, have undergone increases in their geographical range as well as their virulence and recurrence (the species Alexandrium catenella, Pseudochattonella verruculosa, and Heterosigma akashiwo, and others of the genera Dinophysis and Pseudo-nitzschia). Here, we review the evolution of HABs in the Chilean Patagonian fjords, with a focus on the established connections between key features of HABs (expansion, recurrence, and persistence) and their interaction with current and predicted global climate-change-related factors. We conclude that large-scale climatic anomalies such as the lack of rain and heat waves, events intensified by climate change, promote the massive proliferation of these species by creating ideal conditions for their growth and persistence, as they affect water-column stratification, nutrient inputs, and reproductive rates.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
2023
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/10261/332561
url http://hdl.handle.net/10261/332561
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//PID2021-1256430B-C22
https://doi.org/10.3390/microorganisms11081874
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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)
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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