Responses of tropical plankton communities from the Mexican Caribbean to solar ultraviolet radiation exposure and increased temperature

Autores
Halac, Silvana Raquel; Guendulain Garcia, Sergio; Villafañe, Virginia Estela; Helbling, Eduardo Walter; Banaszak, Anastazia
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The aim of this study was to evaluate the effects of UVR on growth and taxonomic composition of tropical plankton communities in a scenario of increased temperature and ultraviolet radiation. Water samples were collected from a reef lagoon in the Mexican Caribbean (20.5° N, 86.5° W) during July 2010 and grown for 16 days in microcosms under two natural radiation treatments: a) PAB (PAR + UV-A + UV-B, 280–700 nm) and, b) P, (PAR, 400–700 nm) and two temperature conditions: a) ambient (28 °C), and, b) increased (ambient + 3 °C). A differential factorial response of the studied variables among the main taxonomic groups and more frequent species was found. The biomass of dinoflagellates and colorless plankton was negatively affected by UVR while the increased temperature had negative effects on diatom biomass and cell abundance. During the experimental period there were changes in the contribution of each taxonomic group. At ambient temperature there was a shift from a flagellate- to a diatom-dominated community; whereas at increased temperature diatoms co-dominated with flagellates. UVR exposure decreased the contribution of naked dinoflagellates (> 20 μm) and cryptophytes. On the other hand, the most frequent diatom, Cylindrotheca closterium was negatively affected at increased temperature, while small chlorophytes (< 10 μm), which were one of the dominant groups of flagellates, contributed significantly to the biomass at increased temperature at the end of the experiment. Synergistic effects of UVR and temperature were only detected at the species level in large diatoms (> 20 μm; e.g. Leptocylindrus sp. and Amphora sp.) and in cryptophytes (> 10 μm). Our results suggest that planktonic assemblages from the Mexican Caribbean are generally well-adapted to the high UVR fluxes and temperature with some species being positively influenced by increased temperature. However there are exceptions with some species being negatively affected by UVR, increased temperature or the combination of both factors. Therefore, our results indicate that under the high radiation conditions of tropical oceans, changes in community structure in terms of taxonomic composition and size distribution would occur in a scenario of global climate change.
Fil: Halac, Silvana Raquel. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Instituto Nacional del Agua; Argentina
Fil: Guendulain Garcia, Sergio. Universidad Nacional Autónoma de México. Unidad Académica de Sistemas Arrecifales. Instituto de Ciencias del Mar y Limnología; México
Fil: Villafañe, Virginia Estela. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Helbling, Eduardo Walter. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Banaszak, Anastazia. Universidad Nacional Autónoma de México. Unidad Académica de Sistemas Arrecifales. Instituto de Ciencias del Mar y Limnología; México
Materia
Global Climate Change
Mexican Caribbean
Plankton
Temperature
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/5350
Acceder
id CONICETDig_baf67b3288d8249a934450db750d8b22
oai_identifier_str oai:ri.conicet.gov.ar:11336/5350
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Responses of tropical plankton communities from the Mexican Caribbean to solar ultraviolet radiation exposure and increased temperatureHalac, Silvana RaquelGuendulain Garcia, SergioVillafañe, Virginia EstelaHelbling, Eduardo WalterBanaszak, AnastaziaGlobal Climate ChangeMexican CaribbeanPlanktonTemperaturehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The aim of this study was to evaluate the effects of UVR on growth and taxonomic composition of tropical plankton communities in a scenario of increased temperature and ultraviolet radiation. Water samples were collected from a reef lagoon in the Mexican Caribbean (20.5° N, 86.5° W) during July 2010 and grown for 16 days in microcosms under two natural radiation treatments: a) PAB (PAR + UV-A + UV-B, 280–700 nm) and, b) P, (PAR, 400–700 nm) and two temperature conditions: a) ambient (28 °C), and, b) increased (ambient + 3 °C). A differential factorial response of the studied variables among the main taxonomic groups and more frequent species was found. The biomass of dinoflagellates and colorless plankton was negatively affected by UVR while the increased temperature had negative effects on diatom biomass and cell abundance. During the experimental period there were changes in the contribution of each taxonomic group. At ambient temperature there was a shift from a flagellate- to a diatom-dominated community; whereas at increased temperature diatoms co-dominated with flagellates. UVR exposure decreased the contribution of naked dinoflagellates (> 20 μm) and cryptophytes. On the other hand, the most frequent diatom, Cylindrotheca closterium was negatively affected at increased temperature, while small chlorophytes (< 10 μm), which were one of the dominant groups of flagellates, contributed significantly to the biomass at increased temperature at the end of the experiment. Synergistic effects of UVR and temperature were only detected at the species level in large diatoms (> 20 μm; e.g. Leptocylindrus sp. and Amphora sp.) and in cryptophytes (> 10 μm). Our results suggest that planktonic assemblages from the Mexican Caribbean are generally well-adapted to the high UVR fluxes and temperature with some species being positively influenced by increased temperature. However there are exceptions with some species being negatively affected by UVR, increased temperature or the combination of both factors. Therefore, our results indicate that under the high radiation conditions of tropical oceans, changes in community structure in terms of taxonomic composition and size distribution would occur in a scenario of global climate change.Fil: Halac, Silvana Raquel. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Instituto Nacional del Agua; ArgentinaFil: Guendulain Garcia, Sergio. Universidad Nacional Autónoma de México. Unidad Académica de Sistemas Arrecifales. Instituto de Ciencias del Mar y Limnología; MéxicoFil: Villafañe, Virginia Estela. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Helbling, Eduardo Walter. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Banaszak, Anastazia. Universidad Nacional Autónoma de México. Unidad Académica de Sistemas Arrecifales. Instituto de Ciencias del Mar y Limnología; MéxicoElsevier2013-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5350Halac, Silvana Raquel; Guendulain Garcia, Sergio; Villafañe, Virginia Estela; Helbling, Eduardo Walter; Banaszak, Anastazia; Responses of tropical plankton communities from the Mexican Caribbean to solar ultraviolet radiation exposure and increased temperature; Elsevier; Journal of Experimental Marine Biology and Ecology; 445; 7-2013; 99-1070022-0981enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0022098113001652info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jembe.2013.04.011info:eu-repo/semantics/altIdentifier/url/10.1016/j.jembe.2013.04.011info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:21:48Zoai:ri.conicet.gov.ar:11336/5350instacron: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 10:21:48.796CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Responses of tropical plankton communities from the Mexican Caribbean to solar ultraviolet radiation exposure and increased temperature
title Responses of tropical plankton communities from the Mexican Caribbean to solar ultraviolet radiation exposure and increased temperature
spellingShingle Responses of tropical plankton communities from the Mexican Caribbean to solar ultraviolet radiation exposure and increased temperature
Halac, Silvana Raquel
Global Climate Change
Mexican Caribbean
Plankton
Temperature
title_short Responses of tropical plankton communities from the Mexican Caribbean to solar ultraviolet radiation exposure and increased temperature
title_full Responses of tropical plankton communities from the Mexican Caribbean to solar ultraviolet radiation exposure and increased temperature
title_fullStr Responses of tropical plankton communities from the Mexican Caribbean to solar ultraviolet radiation exposure and increased temperature
title_full_unstemmed Responses of tropical plankton communities from the Mexican Caribbean to solar ultraviolet radiation exposure and increased temperature
title_sort Responses of tropical plankton communities from the Mexican Caribbean to solar ultraviolet radiation exposure and increased temperature
dc.creator.none.fl_str_mv Halac, Silvana Raquel
Guendulain Garcia, Sergio
Villafañe, Virginia Estela
Helbling, Eduardo Walter
Banaszak, Anastazia
author Halac, Silvana Raquel
author_facet Halac, Silvana Raquel
Guendulain Garcia, Sergio
Villafañe, Virginia Estela
Helbling, Eduardo Walter
Banaszak, Anastazia
author_role author
author2 Guendulain Garcia, Sergio
Villafañe, Virginia Estela
Helbling, Eduardo Walter
Banaszak, Anastazia
author2_role author
author
author
author
dc.subject.none.fl_str_mv Global Climate Change
Mexican Caribbean
Plankton
Temperature
topic Global Climate Change
Mexican Caribbean
Plankton
Temperature
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The aim of this study was to evaluate the effects of UVR on growth and taxonomic composition of tropical plankton communities in a scenario of increased temperature and ultraviolet radiation. Water samples were collected from a reef lagoon in the Mexican Caribbean (20.5° N, 86.5° W) during July 2010 and grown for 16 days in microcosms under two natural radiation treatments: a) PAB (PAR + UV-A + UV-B, 280–700 nm) and, b) P, (PAR, 400–700 nm) and two temperature conditions: a) ambient (28 °C), and, b) increased (ambient + 3 °C). A differential factorial response of the studied variables among the main taxonomic groups and more frequent species was found. The biomass of dinoflagellates and colorless plankton was negatively affected by UVR while the increased temperature had negative effects on diatom biomass and cell abundance. During the experimental period there were changes in the contribution of each taxonomic group. At ambient temperature there was a shift from a flagellate- to a diatom-dominated community; whereas at increased temperature diatoms co-dominated with flagellates. UVR exposure decreased the contribution of naked dinoflagellates (> 20 μm) and cryptophytes. On the other hand, the most frequent diatom, Cylindrotheca closterium was negatively affected at increased temperature, while small chlorophytes (< 10 μm), which were one of the dominant groups of flagellates, contributed significantly to the biomass at increased temperature at the end of the experiment. Synergistic effects of UVR and temperature were only detected at the species level in large diatoms (> 20 μm; e.g. Leptocylindrus sp. and Amphora sp.) and in cryptophytes (> 10 μm). Our results suggest that planktonic assemblages from the Mexican Caribbean are generally well-adapted to the high UVR fluxes and temperature with some species being positively influenced by increased temperature. However there are exceptions with some species being negatively affected by UVR, increased temperature or the combination of both factors. Therefore, our results indicate that under the high radiation conditions of tropical oceans, changes in community structure in terms of taxonomic composition and size distribution would occur in a scenario of global climate change.
Fil: Halac, Silvana Raquel. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Instituto Nacional del Agua; Argentina
Fil: Guendulain Garcia, Sergio. Universidad Nacional Autónoma de México. Unidad Académica de Sistemas Arrecifales. Instituto de Ciencias del Mar y Limnología; México
Fil: Villafañe, Virginia Estela. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Helbling, Eduardo Walter. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Banaszak, Anastazia. Universidad Nacional Autónoma de México. Unidad Académica de Sistemas Arrecifales. Instituto de Ciencias del Mar y Limnología; México
description The aim of this study was to evaluate the effects of UVR on growth and taxonomic composition of tropical plankton communities in a scenario of increased temperature and ultraviolet radiation. Water samples were collected from a reef lagoon in the Mexican Caribbean (20.5° N, 86.5° W) during July 2010 and grown for 16 days in microcosms under two natural radiation treatments: a) PAB (PAR + UV-A + UV-B, 280–700 nm) and, b) P, (PAR, 400–700 nm) and two temperature conditions: a) ambient (28 °C), and, b) increased (ambient + 3 °C). A differential factorial response of the studied variables among the main taxonomic groups and more frequent species was found. The biomass of dinoflagellates and colorless plankton was negatively affected by UVR while the increased temperature had negative effects on diatom biomass and cell abundance. During the experimental period there were changes in the contribution of each taxonomic group. At ambient temperature there was a shift from a flagellate- to a diatom-dominated community; whereas at increased temperature diatoms co-dominated with flagellates. UVR exposure decreased the contribution of naked dinoflagellates (> 20 μm) and cryptophytes. On the other hand, the most frequent diatom, Cylindrotheca closterium was negatively affected at increased temperature, while small chlorophytes (< 10 μm), which were one of the dominant groups of flagellates, contributed significantly to the biomass at increased temperature at the end of the experiment. Synergistic effects of UVR and temperature were only detected at the species level in large diatoms (> 20 μm; e.g. Leptocylindrus sp. and Amphora sp.) and in cryptophytes (> 10 μm). Our results suggest that planktonic assemblages from the Mexican Caribbean are generally well-adapted to the high UVR fluxes and temperature with some species being positively influenced by increased temperature. However there are exceptions with some species being negatively affected by UVR, increased temperature or the combination of both factors. Therefore, our results indicate that under the high radiation conditions of tropical oceans, changes in community structure in terms of taxonomic composition and size distribution would occur in a scenario of global climate change.
publishDate 2013
dc.date.none.fl_str_mv 2013-07
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/11336/5350
Halac, Silvana Raquel; Guendulain Garcia, Sergio; Villafañe, Virginia Estela; Helbling, Eduardo Walter; Banaszak, Anastazia; Responses of tropical plankton communities from the Mexican Caribbean to solar ultraviolet radiation exposure and increased temperature; Elsevier; Journal of Experimental Marine Biology and Ecology; 445; 7-2013; 99-107
0022-0981
url http://hdl.handle.net/11336/5350
identifier_str_mv Halac, Silvana Raquel; Guendulain Garcia, Sergio; Villafañe, Virginia Estela; Helbling, Eduardo Walter; Banaszak, Anastazia; Responses of tropical plankton communities from the Mexican Caribbean to solar ultraviolet radiation exposure and increased temperature; Elsevier; Journal of Experimental Marine Biology and Ecology; 445; 7-2013; 99-107
0022-0981
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0022098113001652
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jembe.2013.04.011
info:eu-repo/semantics/altIdentifier/url/10.1016/j.jembe.2013.04.011
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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