Detection of the phycotoxin pectenotoxin-2 in waters around King George Island, Antarctica
In order to set a base line for the observation of planktonic community changes due to global change, protistan plankton sampling in combination with phycotoxin measurements and solid phase adsorption toxin tracking (SPATT) was performed in two bays of King George Island (KGI) in January 2013 and 20...
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ftconicet:oai:ri.conicet.gov.ar:11336/141109 2023-10-09T21:46:04+02:00 Detection of the phycotoxin pectenotoxin-2 in waters around King George Island, Antarctica Krock, Bernd Schloss, Irene Ruth Trefault, Nicole Tillmann, Urban Hernando, Marcelo Pablo Deregibus, Dolores Antoni, Julieta Silvina Almandoz, Gaston Osvaldo Hoppenrath, Mona application/pdf http://hdl.handle.net/11336/141109 eng eng Springer info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s00300-020-02628-z info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-020-02628-z http://hdl.handle.net/11336/141109 Krock, Bernd; Schloss, Irene Ruth; Trefault, Nicole; Tillmann, Urban; Hernando, Marcelo Pablo; et al.; Detection of the phycotoxin pectenotoxin-2 in waters around King George Island, Antarctica; Springer; Polar Biology; 43; 3; 2-2020; 263-277 0722-4060 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ DINOFLAGELLATES HARMFUL ALGAE BLOOM (HAB) LIQUID CHROMATOGRAPHY-TANDEM MASS SPECTROMETRY (LC–MS/MS) PHYCOTOXIN PROTISTAN PLANKTON COMMUNITY SOLID PHASE ADSORPTION TOXINS TRACKING (SPATT) https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1007/s00300-020-02628-z 2023-09-24T19:50:15Z In order to set a base line for the observation of planktonic community changes due to global change, protistan plankton sampling in combination with phycotoxin measurements and solid phase adsorption toxin tracking (SPATT) was performed in two bays of King George Island (KGI) in January 2013 and 2014. In addition, SPATT sampling was performed in Potter Cove during a one-year period from January 2014 until January 2015. Known toxigenic taxa were not firmly identified in plankton samples but there was microscopical evidence for background level presence of Dinophysis spp. in the area. This was consistent with environmental conditions during the sampling periods, especially strong mixing of the water column and low water temperatures that do not favor dinoflagellate proliferations. Due to the lack of significant abundance of thecate toxigenic dinoflagellate species in microplankton samples, no phycotoxins were found in net tow samples. In contrast, SPATT sampling revealed the presence of dissolved pectenotoxin-2 (PTX-2) and its hydrolyzed form PTX-2 seco acid in both bays and during the entire one-year sampling period. The presence of dissolved PTX in coastal waters of KGI is strong new evidence for the presence of PTX-producing species, i.e., dinoflagellates of the genus Dinophysis in the area. The presence of phycotoxins and their respective producers, even at the low background concentrations found in this study, may be the seed of possible proliferations of these species under changing environmental conditions. Furthermore, phycotoxins can be used as chemotaxonomic markers for a very specific group of plankton thus allowing to track the presence of this group over time. Fil: Krock, Bernd. Alfred Wegener Institut-Helmholtz Zentrum für Polarund Meeresforschung; Alemania Fil: Schloss, Irene Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. ... Article in Journal/Newspaper Antarc* Antarctica Dirección Nacional del Antártico King George Island Polar Biology CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Austral King George Island Potter Cove Argentina Polar Biology 43 3 263 277 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
DINOFLAGELLATES HARMFUL ALGAE BLOOM (HAB) LIQUID CHROMATOGRAPHY-TANDEM MASS SPECTROMETRY (LC–MS/MS) PHYCOTOXIN PROTISTAN PLANKTON COMMUNITY SOLID PHASE ADSORPTION TOXINS TRACKING (SPATT) https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
DINOFLAGELLATES HARMFUL ALGAE BLOOM (HAB) LIQUID CHROMATOGRAPHY-TANDEM MASS SPECTROMETRY (LC–MS/MS) PHYCOTOXIN PROTISTAN PLANKTON COMMUNITY SOLID PHASE ADSORPTION TOXINS TRACKING (SPATT) https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Krock, Bernd Schloss, Irene Ruth Trefault, Nicole Tillmann, Urban Hernando, Marcelo Pablo Deregibus, Dolores Antoni, Julieta Silvina Almandoz, Gaston Osvaldo Hoppenrath, Mona Detection of the phycotoxin pectenotoxin-2 in waters around King George Island, Antarctica |
topic_facet |
DINOFLAGELLATES HARMFUL ALGAE BLOOM (HAB) LIQUID CHROMATOGRAPHY-TANDEM MASS SPECTROMETRY (LC–MS/MS) PHYCOTOXIN PROTISTAN PLANKTON COMMUNITY SOLID PHASE ADSORPTION TOXINS TRACKING (SPATT) https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
In order to set a base line for the observation of planktonic community changes due to global change, protistan plankton sampling in combination with phycotoxin measurements and solid phase adsorption toxin tracking (SPATT) was performed in two bays of King George Island (KGI) in January 2013 and 2014. In addition, SPATT sampling was performed in Potter Cove during a one-year period from January 2014 until January 2015. Known toxigenic taxa were not firmly identified in plankton samples but there was microscopical evidence for background level presence of Dinophysis spp. in the area. This was consistent with environmental conditions during the sampling periods, especially strong mixing of the water column and low water temperatures that do not favor dinoflagellate proliferations. Due to the lack of significant abundance of thecate toxigenic dinoflagellate species in microplankton samples, no phycotoxins were found in net tow samples. In contrast, SPATT sampling revealed the presence of dissolved pectenotoxin-2 (PTX-2) and its hydrolyzed form PTX-2 seco acid in both bays and during the entire one-year sampling period. The presence of dissolved PTX in coastal waters of KGI is strong new evidence for the presence of PTX-producing species, i.e., dinoflagellates of the genus Dinophysis in the area. The presence of phycotoxins and their respective producers, even at the low background concentrations found in this study, may be the seed of possible proliferations of these species under changing environmental conditions. Furthermore, phycotoxins can be used as chemotaxonomic markers for a very specific group of plankton thus allowing to track the presence of this group over time. Fil: Krock, Bernd. Alfred Wegener Institut-Helmholtz Zentrum für Polarund Meeresforschung; Alemania Fil: Schloss, Irene Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. ... |
format |
Article in Journal/Newspaper |
author |
Krock, Bernd Schloss, Irene Ruth Trefault, Nicole Tillmann, Urban Hernando, Marcelo Pablo Deregibus, Dolores Antoni, Julieta Silvina Almandoz, Gaston Osvaldo Hoppenrath, Mona |
author_facet |
Krock, Bernd Schloss, Irene Ruth Trefault, Nicole Tillmann, Urban Hernando, Marcelo Pablo Deregibus, Dolores Antoni, Julieta Silvina Almandoz, Gaston Osvaldo Hoppenrath, Mona |
author_sort |
Krock, Bernd |
title |
Detection of the phycotoxin pectenotoxin-2 in waters around King George Island, Antarctica |
title_short |
Detection of the phycotoxin pectenotoxin-2 in waters around King George Island, Antarctica |
title_full |
Detection of the phycotoxin pectenotoxin-2 in waters around King George Island, Antarctica |
title_fullStr |
Detection of the phycotoxin pectenotoxin-2 in waters around King George Island, Antarctica |
title_full_unstemmed |
Detection of the phycotoxin pectenotoxin-2 in waters around King George Island, Antarctica |
title_sort |
detection of the phycotoxin pectenotoxin-2 in waters around king george island, antarctica |
publisher |
Springer |
url |
http://hdl.handle.net/11336/141109 |
geographic |
Austral King George Island Potter Cove Argentina |
geographic_facet |
Austral King George Island Potter Cove Argentina |
genre |
Antarc* Antarctica Dirección Nacional del Antártico King George Island Polar Biology |
genre_facet |
Antarc* Antarctica Dirección Nacional del Antártico King George Island Polar Biology |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s00300-020-02628-z info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-020-02628-z http://hdl.handle.net/11336/141109 Krock, Bernd; Schloss, Irene Ruth; Trefault, Nicole; Tillmann, Urban; Hernando, Marcelo Pablo; et al.; Detection of the phycotoxin pectenotoxin-2 in waters around King George Island, Antarctica; Springer; Polar Biology; 43; 3; 2-2020; 263-277 0722-4060 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
op_doi |
https://doi.org/10.1007/s00300-020-02628-z |
container_title |
Polar Biology |
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43 |
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3 |
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263 |
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277 |
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1779321732175233024 |