Responses of marine primary producers to interactions between ocean acidification, solar radiation, and warming

Autores
Gao, Kunshan; Helbling, Eduardo Walter; Häder, Donat P.; Hutchins, David A.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Anthropogenic CO2 is accumulating in the atmosphere and trapping backward infrared radiation, resulting in warming of both terrestrial and ocean ecosystems. At the same time, dissolution of CO2 into seawater is increasing surface ocean acidity, a process known as ocean acidification. Phytoplankton cells in natural environments experience diurnal changes of solar radiation, from light-limiting to light-saturating and then, most often in upper layers, to stressful light levels in the presence of UV radiation. Subsequently, ocean acidification can interact with solar radiation to bring about synergistic, antagonistic or balanced effects on marine primary producers at different depths or under changing weather conditions. In fact, both solar radiation and pCO2 can fluctuate over different time scales to range from limiting to saturating or even stressful levels. On the other hand, shoaling of the upper mixed layer (enhanced stratification) due to ocean warming and freshening (rain, ice melting) can lead to additional photosynthetically active radiation (PAR) and ultraviolet (UV) exposure, which can have both benefits and costs to photosynthetic organisms. Within limits, elevated CO2 concentrations under low or moderate levels of PAR have been shown to act synergistically benefiting photosynthesis or growth in both marine phytoplankton and macroscopic algae; excessive levels of PAR, however, can lead to additional inhibition of photosynthesis or growth under elevated CO2, and addition of UV radiation (280-400 nm) can increase such inhibition. While solar UV-B (280-315 nm) radiation often harms algal cells, UV-A (315-400 nm) at moderate levels stimulates photosynthetic carbon fixation in both phytoplankton and macroalgae. Both the inhibitory impacts of UV-B and stimulatory effects of UV-A vary in amplitude with changes in seawater chemistry associated with ocean acidification. In view of warming effects, increased temperatures have been shown to enhance photorepair of UV-damaged molecules, though it simultaneously enhances respiratory carbon loss. The net effects of ocean acidification on marine primary producers are therefore largely dependent on the photobiological conditions (light limitation, light or UV stress), as well as interactions with rising temperature and other variables such as altered nutrient availability. Hence, feedbacks between changing carbonate chemistry and solar radiation across the entire spectrum present complications to interpret and understand ocean acidification effects based on single-factor experiments.
Fil: Gao, Kunshan. Xiamen University; China
Fil: Helbling, Eduardo Walter. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Häder, Donat P.. No especifíca;
Fil: Hutchins, David A.. University of Southern California; Estados Unidos. University of Southern California; Estados Unidos
Materia
ALGAE
CARBON DIOXIDE
CLIMATE CHANGE
LIGHT
PHOTOSYNTHESIS
PHYTOPLANKTON
ULTRAVIOLET RADIATION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/198937

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oai_identifier_str oai:ri.conicet.gov.ar:11336/198937
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Responses of marine primary producers to interactions between ocean acidification, solar radiation, and warmingGao, KunshanHelbling, Eduardo WalterHäder, Donat P.Hutchins, David A.ALGAECARBON DIOXIDECLIMATE CHANGELIGHTPHOTOSYNTHESISPHYTOPLANKTONULTRAVIOLET RADIATIONhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Anthropogenic CO2 is accumulating in the atmosphere and trapping backward infrared radiation, resulting in warming of both terrestrial and ocean ecosystems. At the same time, dissolution of CO2 into seawater is increasing surface ocean acidity, a process known as ocean acidification. Phytoplankton cells in natural environments experience diurnal changes of solar radiation, from light-limiting to light-saturating and then, most often in upper layers, to stressful light levels in the presence of UV radiation. Subsequently, ocean acidification can interact with solar radiation to bring about synergistic, antagonistic or balanced effects on marine primary producers at different depths or under changing weather conditions. In fact, both solar radiation and pCO2 can fluctuate over different time scales to range from limiting to saturating or even stressful levels. On the other hand, shoaling of the upper mixed layer (enhanced stratification) due to ocean warming and freshening (rain, ice melting) can lead to additional photosynthetically active radiation (PAR) and ultraviolet (UV) exposure, which can have both benefits and costs to photosynthetic organisms. Within limits, elevated CO2 concentrations under low or moderate levels of PAR have been shown to act synergistically benefiting photosynthesis or growth in both marine phytoplankton and macroscopic algae; excessive levels of PAR, however, can lead to additional inhibition of photosynthesis or growth under elevated CO2, and addition of UV radiation (280-400 nm) can increase such inhibition. While solar UV-B (280-315 nm) radiation often harms algal cells, UV-A (315-400 nm) at moderate levels stimulates photosynthetic carbon fixation in both phytoplankton and macroalgae. Both the inhibitory impacts of UV-B and stimulatory effects of UV-A vary in amplitude with changes in seawater chemistry associated with ocean acidification. In view of warming effects, increased temperatures have been shown to enhance photorepair of UV-damaged molecules, though it simultaneously enhances respiratory carbon loss. The net effects of ocean acidification on marine primary producers are therefore largely dependent on the photobiological conditions (light limitation, light or UV stress), as well as interactions with rising temperature and other variables such as altered nutrient availability. Hence, feedbacks between changing carbonate chemistry and solar radiation across the entire spectrum present complications to interpret and understand ocean acidification effects based on single-factor experiments.Fil: Gao, Kunshan. Xiamen University; ChinaFil: Helbling, Eduardo Walter. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Häder, Donat P.. No especifíca;Fil: Hutchins, David A.. University of Southern California; Estados Unidos. University of Southern California; Estados UnidosInter-Research2012-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/198937Gao, Kunshan; Helbling, Eduardo Walter; Häder, Donat P.; Hutchins, David A.; Responses of marine primary producers to interactions between ocean acidification, solar radiation, and warming; Inter-Research; Marine Ecology Progress Series; 470; 12-2012; 167-1890171-8630CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.int-res.com/abstracts/meps/v470/p167-189/info:eu-repo/semantics/altIdentifier/doi/10.3354/meps10043info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:35:54Zoai:ri.conicet.gov.ar:11336/198937instacron: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 09:35:55.075CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Responses of marine primary producers to interactions between ocean acidification, solar radiation, and warming
title Responses of marine primary producers to interactions between ocean acidification, solar radiation, and warming
spellingShingle Responses of marine primary producers to interactions between ocean acidification, solar radiation, and warming
Gao, Kunshan
ALGAE
CARBON DIOXIDE
CLIMATE CHANGE
LIGHT
PHOTOSYNTHESIS
PHYTOPLANKTON
ULTRAVIOLET RADIATION
title_short Responses of marine primary producers to interactions between ocean acidification, solar radiation, and warming
title_full Responses of marine primary producers to interactions between ocean acidification, solar radiation, and warming
title_fullStr Responses of marine primary producers to interactions between ocean acidification, solar radiation, and warming
title_full_unstemmed Responses of marine primary producers to interactions between ocean acidification, solar radiation, and warming
title_sort Responses of marine primary producers to interactions between ocean acidification, solar radiation, and warming
dc.creator.none.fl_str_mv Gao, Kunshan
Helbling, Eduardo Walter
Häder, Donat P.
Hutchins, David A.
author Gao, Kunshan
author_facet Gao, Kunshan
Helbling, Eduardo Walter
Häder, Donat P.
Hutchins, David A.
author_role author
author2 Helbling, Eduardo Walter
Häder, Donat P.
Hutchins, David A.
author2_role author
author
author
dc.subject.none.fl_str_mv ALGAE
CARBON DIOXIDE
CLIMATE CHANGE
LIGHT
PHOTOSYNTHESIS
PHYTOPLANKTON
ULTRAVIOLET RADIATION
topic ALGAE
CARBON DIOXIDE
CLIMATE CHANGE
LIGHT
PHOTOSYNTHESIS
PHYTOPLANKTON
ULTRAVIOLET RADIATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Anthropogenic CO2 is accumulating in the atmosphere and trapping backward infrared radiation, resulting in warming of both terrestrial and ocean ecosystems. At the same time, dissolution of CO2 into seawater is increasing surface ocean acidity, a process known as ocean acidification. Phytoplankton cells in natural environments experience diurnal changes of solar radiation, from light-limiting to light-saturating and then, most often in upper layers, to stressful light levels in the presence of UV radiation. Subsequently, ocean acidification can interact with solar radiation to bring about synergistic, antagonistic or balanced effects on marine primary producers at different depths or under changing weather conditions. In fact, both solar radiation and pCO2 can fluctuate over different time scales to range from limiting to saturating or even stressful levels. On the other hand, shoaling of the upper mixed layer (enhanced stratification) due to ocean warming and freshening (rain, ice melting) can lead to additional photosynthetically active radiation (PAR) and ultraviolet (UV) exposure, which can have both benefits and costs to photosynthetic organisms. Within limits, elevated CO2 concentrations under low or moderate levels of PAR have been shown to act synergistically benefiting photosynthesis or growth in both marine phytoplankton and macroscopic algae; excessive levels of PAR, however, can lead to additional inhibition of photosynthesis or growth under elevated CO2, and addition of UV radiation (280-400 nm) can increase such inhibition. While solar UV-B (280-315 nm) radiation often harms algal cells, UV-A (315-400 nm) at moderate levels stimulates photosynthetic carbon fixation in both phytoplankton and macroalgae. Both the inhibitory impacts of UV-B and stimulatory effects of UV-A vary in amplitude with changes in seawater chemistry associated with ocean acidification. In view of warming effects, increased temperatures have been shown to enhance photorepair of UV-damaged molecules, though it simultaneously enhances respiratory carbon loss. The net effects of ocean acidification on marine primary producers are therefore largely dependent on the photobiological conditions (light limitation, light or UV stress), as well as interactions with rising temperature and other variables such as altered nutrient availability. Hence, feedbacks between changing carbonate chemistry and solar radiation across the entire spectrum present complications to interpret and understand ocean acidification effects based on single-factor experiments.
Fil: Gao, Kunshan. Xiamen University; China
Fil: Helbling, Eduardo Walter. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Häder, Donat P.. No especifíca;
Fil: Hutchins, David A.. University of Southern California; Estados Unidos. University of Southern California; Estados Unidos
description Anthropogenic CO2 is accumulating in the atmosphere and trapping backward infrared radiation, resulting in warming of both terrestrial and ocean ecosystems. At the same time, dissolution of CO2 into seawater is increasing surface ocean acidity, a process known as ocean acidification. Phytoplankton cells in natural environments experience diurnal changes of solar radiation, from light-limiting to light-saturating and then, most often in upper layers, to stressful light levels in the presence of UV radiation. Subsequently, ocean acidification can interact with solar radiation to bring about synergistic, antagonistic or balanced effects on marine primary producers at different depths or under changing weather conditions. In fact, both solar radiation and pCO2 can fluctuate over different time scales to range from limiting to saturating or even stressful levels. On the other hand, shoaling of the upper mixed layer (enhanced stratification) due to ocean warming and freshening (rain, ice melting) can lead to additional photosynthetically active radiation (PAR) and ultraviolet (UV) exposure, which can have both benefits and costs to photosynthetic organisms. Within limits, elevated CO2 concentrations under low or moderate levels of PAR have been shown to act synergistically benefiting photosynthesis or growth in both marine phytoplankton and macroscopic algae; excessive levels of PAR, however, can lead to additional inhibition of photosynthesis or growth under elevated CO2, and addition of UV radiation (280-400 nm) can increase such inhibition. While solar UV-B (280-315 nm) radiation often harms algal cells, UV-A (315-400 nm) at moderate levels stimulates photosynthetic carbon fixation in both phytoplankton and macroalgae. Both the inhibitory impacts of UV-B and stimulatory effects of UV-A vary in amplitude with changes in seawater chemistry associated with ocean acidification. In view of warming effects, increased temperatures have been shown to enhance photorepair of UV-damaged molecules, though it simultaneously enhances respiratory carbon loss. The net effects of ocean acidification on marine primary producers are therefore largely dependent on the photobiological conditions (light limitation, light or UV stress), as well as interactions with rising temperature and other variables such as altered nutrient availability. Hence, feedbacks between changing carbonate chemistry and solar radiation across the entire spectrum present complications to interpret and understand ocean acidification effects based on single-factor experiments.
publishDate 2012
dc.date.none.fl_str_mv 2012-12
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/11336/198937
Gao, Kunshan; Helbling, Eduardo Walter; Häder, Donat P.; Hutchins, David A.; Responses of marine primary producers to interactions between ocean acidification, solar radiation, and warming; Inter-Research; Marine Ecology Progress Series; 470; 12-2012; 167-189
0171-8630
CONICET Digital
CONICET
url http://hdl.handle.net/11336/198937
identifier_str_mv Gao, Kunshan; Helbling, Eduardo Walter; Häder, Donat P.; Hutchins, David A.; Responses of marine primary producers to interactions between ocean acidification, solar radiation, and warming; Inter-Research; Marine Ecology Progress Series; 470; 12-2012; 167-189
0171-8630
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.int-res.com/abstracts/meps/v470/p167-189/
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps10043
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Inter-Research
publisher.none.fl_str_mv Inter-Research
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
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