Dinophysis acuminata or Dinophysis acuta: What Makes the Difference in Highly Stratified Fjords?

Autores
Baldrich, Ángela; Díaz, Patricio; Álvarez, Gonzalo Sebastián; Pérez Santos, Iván; Schwerter, Camila; Díaz, Manuel; Araya, Michael; Nieves, María; Rodríguez Villegas, Camilo; Barrera, Facundo Matías; Fernández Pena, Concepción; Arenas Uribe, Sara; Navarro, Pilar; Reguera, Mónica Beatriz
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Dinophysis acuminata and D. acuta, which follows it seasonally, are the main producers of lipophilic toxins in temperate coastal waters, including Southern Chile. Strains of the two species differ in their toxin profiles and impacts on shellfish resources. D. acuta is considered the major cause of diarrhetic shellfish poisoning (DSP) outbreaks in Southern Chile, but there is uncertainty about the toxicity of D. acuminata, and little information on microscale oceanographic conditions promoting their blooms. During the austral summer of 2020, intensive sampling was carried out in two northern Patagonian fjords, Puyuhuapi (PUY) and Pitipalena (PIT), sharing D. acuminata dominance and D. acuta near detection levels. Dinophysistoxin 1 (DTX 1) and pectenotoxin 2 (PTX 2) were present in all net tow samples but OA was not detected. Although differing in hydrodynamics and sampling dates, D. acuminata shared behavioural traits in the two fjords: cell maxima (>103 cells L−1) in the interface (S ~ 21) between the estuarine freshwater (EFW)) and saline water (ESW) layers; and phased-cell division (µ = 0.3–0.4 d−1) peaking after dawn, and abundance of ciliate prey. Niche analysis (Outlying Mean Index, OMI) of D. acuta with a high marginality and much lower tolerance than D. acuminata indicated an unfavourable physical environment for D. acuta (bloom failure). Comparison of toxin profiles and Dinophysis niches in three contrasting years in PUY—2020 (D. acuminata bloom), 2018 (exceptional bloom of D. acuta), and 2019 (bloom co-occurrence of the two species)—shed light on the vertical gradients which promote each species. The presence of FW (S < 11) and thermal inversion may be used to provide short-term forecasts of no risk of D. acuta blooms and OA occurrence, but D. acuminata associated with DTX 1 pose a risk of DSP events in North Patagonian fjords.
Fil: Baldrich, Ángela. Universidad de Los Lagos; Chile
Fil: Díaz, Patricio. Universidad de Los Lagos; Chile
Fil: Álvarez, Gonzalo Sebastián. Pontificia Universidad Católica de Chile; Chile
Fil: Pérez Santos, Iván. Universidad de Los Lagos; Chile. Universidad de Concepción; Chile
Fil: Schwerter, Camila. Universidad de Los Lagos; Chile
Fil: Díaz, Manuel. Universidad Austral de Chile; Chile
Fil: Araya, Michael. Universidad Católica de Chile; Chile
Fil: Nieves, María. Universidad Católica de Chile; Chile
Fil: Rodríguez Villegas, Camilo. Universidad de Los Lagos; Chile
Fil: Barrera, Facundo Matías. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad de Los Lagos; Chile
Fil: Fernández Pena, Concepción. Centro Oceanográfico de La Coruña; España
Fil: Arenas Uribe, Sara. Universidad de Los Lagos; Chile
Fil: Navarro, Pilar. Universidad de Los Lagos; Chile
Fil: Reguera, Mónica Beatriz. Centro Oceanográfico de Vigo Ioe; España
Materia
DINOPHYSIS ACUMINATA
D. ACUTA
DSP TOXINS
PTX2
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/237620
Acceder
id CONICETDig_5488b54ca4f52b461c2196037da44c76
oai_identifier_str oai:ri.conicet.gov.ar:11336/237620
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Dinophysis acuminata or Dinophysis acuta: What Makes the Difference in Highly Stratified Fjords?Baldrich, ÁngelaDíaz, PatricioÁlvarez, Gonzalo SebastiánPérez Santos, IvánSchwerter, CamilaDíaz, ManuelAraya, MichaelNieves, MaríaRodríguez Villegas, CamiloBarrera, Facundo MatíasFernández Pena, ConcepciónArenas Uribe, SaraNavarro, PilarReguera, Mónica BeatrizDINOPHYSIS ACUMINATAD. ACUTADSP TOXINSPTX2https://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Dinophysis acuminata and D. acuta, which follows it seasonally, are the main producers of lipophilic toxins in temperate coastal waters, including Southern Chile. Strains of the two species differ in their toxin profiles and impacts on shellfish resources. D. acuta is considered the major cause of diarrhetic shellfish poisoning (DSP) outbreaks in Southern Chile, but there is uncertainty about the toxicity of D. acuminata, and little information on microscale oceanographic conditions promoting their blooms. During the austral summer of 2020, intensive sampling was carried out in two northern Patagonian fjords, Puyuhuapi (PUY) and Pitipalena (PIT), sharing D. acuminata dominance and D. acuta near detection levels. Dinophysistoxin 1 (DTX 1) and pectenotoxin 2 (PTX 2) were present in all net tow samples but OA was not detected. Although differing in hydrodynamics and sampling dates, D. acuminata shared behavioural traits in the two fjords: cell maxima (>103 cells L−1) in the interface (S ~ 21) between the estuarine freshwater (EFW)) and saline water (ESW) layers; and phased-cell division (µ = 0.3–0.4 d−1) peaking after dawn, and abundance of ciliate prey. Niche analysis (Outlying Mean Index, OMI) of D. acuta with a high marginality and much lower tolerance than D. acuminata indicated an unfavourable physical environment for D. acuta (bloom failure). Comparison of toxin profiles and Dinophysis niches in three contrasting years in PUY—2020 (D. acuminata bloom), 2018 (exceptional bloom of D. acuta), and 2019 (bloom co-occurrence of the two species)—shed light on the vertical gradients which promote each species. The presence of FW (S < 11) and thermal inversion may be used to provide short-term forecasts of no risk of D. acuta blooms and OA occurrence, but D. acuminata associated with DTX 1 pose a risk of DSP events in North Patagonian fjords.Fil: Baldrich, Ángela. Universidad de Los Lagos; ChileFil: Díaz, Patricio. Universidad de Los Lagos; ChileFil: Álvarez, Gonzalo Sebastián. Pontificia Universidad Católica de Chile; ChileFil: Pérez Santos, Iván. Universidad de Los Lagos; Chile. Universidad de Concepción; ChileFil: Schwerter, Camila. Universidad de Los Lagos; ChileFil: Díaz, Manuel. Universidad Austral de Chile; ChileFil: Araya, Michael. Universidad Católica de Chile; ChileFil: Nieves, María. Universidad Católica de Chile; ChileFil: Rodríguez Villegas, Camilo. Universidad de Los Lagos; ChileFil: Barrera, Facundo Matías. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad de Los Lagos; ChileFil: Fernández Pena, Concepción. Centro Oceanográfico de La Coruña; EspañaFil: Arenas Uribe, Sara. Universidad de Los Lagos; ChileFil: Navarro, Pilar. Universidad de Los Lagos; ChileFil: Reguera, Mónica Beatriz. Centro Oceanográfico de Vigo Ioe; EspañaMolecular Diversity Preservation International2023-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/237620Baldrich, Ángela; Díaz, Patricio; Álvarez, Gonzalo Sebastián; Pérez Santos, Iván; Schwerter, Camila; et al.; Dinophysis acuminata or Dinophysis acuta: What Makes the Difference in Highly Stratified Fjords?; Molecular Diversity Preservation International; Marine Drugs; 21; 2; 1-2023; 1-271660-3397CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/1660-3397/21/2/64info:eu-repo/semantics/altIdentifier/doi/10.3390/md21020064info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:28:21Zoai:ri.conicet.gov.ar:11336/237620instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:28:21.844CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Dinophysis acuminata or Dinophysis acuta: What Makes the Difference in Highly Stratified Fjords?
title Dinophysis acuminata or Dinophysis acuta: What Makes the Difference in Highly Stratified Fjords?
spellingShingle Dinophysis acuminata or Dinophysis acuta: What Makes the Difference in Highly Stratified Fjords?
Baldrich, Ángela
DINOPHYSIS ACUMINATA
D. ACUTA
DSP TOXINS
PTX2
title_short Dinophysis acuminata or Dinophysis acuta: What Makes the Difference in Highly Stratified Fjords?
title_full Dinophysis acuminata or Dinophysis acuta: What Makes the Difference in Highly Stratified Fjords?
title_fullStr Dinophysis acuminata or Dinophysis acuta: What Makes the Difference in Highly Stratified Fjords?
title_full_unstemmed Dinophysis acuminata or Dinophysis acuta: What Makes the Difference in Highly Stratified Fjords?
title_sort Dinophysis acuminata or Dinophysis acuta: What Makes the Difference in Highly Stratified Fjords?
dc.creator.none.fl_str_mv Baldrich, Ángela
Díaz, Patricio
Álvarez, Gonzalo Sebastián
Pérez Santos, Iván
Schwerter, Camila
Díaz, Manuel
Araya, Michael
Nieves, María
Rodríguez Villegas, Camilo
Barrera, Facundo Matías
Fernández Pena, Concepción
Arenas Uribe, Sara
Navarro, Pilar
Reguera, Mónica Beatriz
author Baldrich, Ángela
author_facet Baldrich, Ángela
Díaz, Patricio
Álvarez, Gonzalo Sebastián
Pérez Santos, Iván
Schwerter, Camila
Díaz, Manuel
Araya, Michael
Nieves, María
Rodríguez Villegas, Camilo
Barrera, Facundo Matías
Fernández Pena, Concepción
Arenas Uribe, Sara
Navarro, Pilar
Reguera, Mónica Beatriz
author_role author
author2 Díaz, Patricio
Álvarez, Gonzalo Sebastián
Pérez Santos, Iván
Schwerter, Camila
Díaz, Manuel
Araya, Michael
Nieves, María
Rodríguez Villegas, Camilo
Barrera, Facundo Matías
Fernández Pena, Concepción
Arenas Uribe, Sara
Navarro, Pilar
Reguera, Mónica Beatriz
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv DINOPHYSIS ACUMINATA
D. ACUTA
DSP TOXINS
PTX2
topic DINOPHYSIS ACUMINATA
D. ACUTA
DSP TOXINS
PTX2
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Dinophysis acuminata and D. acuta, which follows it seasonally, are the main producers of lipophilic toxins in temperate coastal waters, including Southern Chile. Strains of the two species differ in their toxin profiles and impacts on shellfish resources. D. acuta is considered the major cause of diarrhetic shellfish poisoning (DSP) outbreaks in Southern Chile, but there is uncertainty about the toxicity of D. acuminata, and little information on microscale oceanographic conditions promoting their blooms. During the austral summer of 2020, intensive sampling was carried out in two northern Patagonian fjords, Puyuhuapi (PUY) and Pitipalena (PIT), sharing D. acuminata dominance and D. acuta near detection levels. Dinophysistoxin 1 (DTX 1) and pectenotoxin 2 (PTX 2) were present in all net tow samples but OA was not detected. Although differing in hydrodynamics and sampling dates, D. acuminata shared behavioural traits in the two fjords: cell maxima (>103 cells L−1) in the interface (S ~ 21) between the estuarine freshwater (EFW)) and saline water (ESW) layers; and phased-cell division (µ = 0.3–0.4 d−1) peaking after dawn, and abundance of ciliate prey. Niche analysis (Outlying Mean Index, OMI) of D. acuta with a high marginality and much lower tolerance than D. acuminata indicated an unfavourable physical environment for D. acuta (bloom failure). Comparison of toxin profiles and Dinophysis niches in three contrasting years in PUY—2020 (D. acuminata bloom), 2018 (exceptional bloom of D. acuta), and 2019 (bloom co-occurrence of the two species)—shed light on the vertical gradients which promote each species. The presence of FW (S < 11) and thermal inversion may be used to provide short-term forecasts of no risk of D. acuta blooms and OA occurrence, but D. acuminata associated with DTX 1 pose a risk of DSP events in North Patagonian fjords.
Fil: Baldrich, Ángela. Universidad de Los Lagos; Chile
Fil: Díaz, Patricio. Universidad de Los Lagos; Chile
Fil: Álvarez, Gonzalo Sebastián. Pontificia Universidad Católica de Chile; Chile
Fil: Pérez Santos, Iván. Universidad de Los Lagos; Chile. Universidad de Concepción; Chile
Fil: Schwerter, Camila. Universidad de Los Lagos; Chile
Fil: Díaz, Manuel. Universidad Austral de Chile; Chile
Fil: Araya, Michael. Universidad Católica de Chile; Chile
Fil: Nieves, María. Universidad Católica de Chile; Chile
Fil: Rodríguez Villegas, Camilo. Universidad de Los Lagos; Chile
Fil: Barrera, Facundo Matías. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad de Los Lagos; Chile
Fil: Fernández Pena, Concepción. Centro Oceanográfico de La Coruña; España
Fil: Arenas Uribe, Sara. Universidad de Los Lagos; Chile
Fil: Navarro, Pilar. Universidad de Los Lagos; Chile
Fil: Reguera, Mónica Beatriz. Centro Oceanográfico de Vigo Ioe; España
description Dinophysis acuminata and D. acuta, which follows it seasonally, are the main producers of lipophilic toxins in temperate coastal waters, including Southern Chile. Strains of the two species differ in their toxin profiles and impacts on shellfish resources. D. acuta is considered the major cause of diarrhetic shellfish poisoning (DSP) outbreaks in Southern Chile, but there is uncertainty about the toxicity of D. acuminata, and little information on microscale oceanographic conditions promoting their blooms. During the austral summer of 2020, intensive sampling was carried out in two northern Patagonian fjords, Puyuhuapi (PUY) and Pitipalena (PIT), sharing D. acuminata dominance and D. acuta near detection levels. Dinophysistoxin 1 (DTX 1) and pectenotoxin 2 (PTX 2) were present in all net tow samples but OA was not detected. Although differing in hydrodynamics and sampling dates, D. acuminata shared behavioural traits in the two fjords: cell maxima (>103 cells L−1) in the interface (S ~ 21) between the estuarine freshwater (EFW)) and saline water (ESW) layers; and phased-cell division (µ = 0.3–0.4 d−1) peaking after dawn, and abundance of ciliate prey. Niche analysis (Outlying Mean Index, OMI) of D. acuta with a high marginality and much lower tolerance than D. acuminata indicated an unfavourable physical environment for D. acuta (bloom failure). Comparison of toxin profiles and Dinophysis niches in three contrasting years in PUY—2020 (D. acuminata bloom), 2018 (exceptional bloom of D. acuta), and 2019 (bloom co-occurrence of the two species)—shed light on the vertical gradients which promote each species. The presence of FW (S < 11) and thermal inversion may be used to provide short-term forecasts of no risk of D. acuta blooms and OA occurrence, but D. acuminata associated with DTX 1 pose a risk of DSP events in North Patagonian fjords.
publishDate 2023
dc.date.none.fl_str_mv 2023-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/237620
Baldrich, Ángela; Díaz, Patricio; Álvarez, Gonzalo Sebastián; Pérez Santos, Iván; Schwerter, Camila; et al.; Dinophysis acuminata or Dinophysis acuta: What Makes the Difference in Highly Stratified Fjords?; Molecular Diversity Preservation International; Marine Drugs; 21; 2; 1-2023; 1-27
1660-3397
CONICET Digital
CONICET
url http://hdl.handle.net/11336/237620
identifier_str_mv Baldrich, Ángela; Díaz, Patricio; Álvarez, Gonzalo Sebastián; Pérez Santos, Iván; Schwerter, Camila; et al.; Dinophysis acuminata or Dinophysis acuta: What Makes the Difference in Highly Stratified Fjords?; Molecular Diversity Preservation International; Marine Drugs; 21; 2; 1-2023; 1-27
1660-3397
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/1660-3397/21/2/64
info:eu-repo/semantics/altIdentifier/doi/10.3390/md21020064
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Molecular Diversity Preservation International
publisher.none.fl_str_mv Molecular Diversity Preservation International
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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