Effects of UVB radiation on net community production in the upper global ocean

Handle URI:
http://hdl.handle.net/10754/622539
Title:
Effects of UVB radiation on net community production in the upper global ocean
Authors:
Garcia-Corral, Lara S.; Holding, Johnna M.; Carrillo-de-Albornoz, Paloma; Steckbauer, Alexandra; Pérez-Lorenzo, María; Navarro, Nuria; Serret, Pablo; Duarte, Carlos M. ( 0000-0002-1213-1361 ) ; Agusti, Susana ( 0000-0003-0536-7293 )
Abstract:
Aim Erosion of the stratospheric ozone layer together with oligotrophication of the subtropical ocean is leading to enhanced exposure to ultraviolet B (UVB) radiation in ocean surface waters. The impact of increased exposure to UVB on planktonic primary producers and heterotrophs is uncertain. Here we test the null hypothesis that net community production (NCP) of plankton communities in surface waters of the tropical and subtropical ocean is not affected by ambient UVB radiation and extend this test to the global ocean, including the polar oceans and the Mediterranean Sea using previous results. Location We conducted experiments with 131 surface communities sampled during a circumnavigation cruise along the tropical and subtropical ocean and combined these results with 89 previous reports encompassing the Atlantic, Pacific, Arctic and Southern Oceans and the Mediterranean Sea. Methods The use of quartz (transparent to UVB radiation) and borosilicate glass materials (opaque to most UVB) for incubations allowed us to compare NCP between communities where UVB is excluded and those receiving natural UVB radiation. Results We found that NCP varies when exposed to natural UVB radiation compared to those where UVB was removed. NCP of autotrophic communities tended to decrease under natural UVB radiation, whereas the NCP of heterotrophic communities tended to increase. However, these variations showed the opposite trend under higher levels of UVB radiation. Main conclusions Our results suggest that earlier estimates of NCP for surface communities, which were hitherto derived using materials blocking UVB radiation were biased, with the direction and magnitude of this bias depending on the metabolic status of the communities and the underwater penetration of UVB radiation.
KAUST Department:
Red Sea Research Center (RSRC)
Citation:
Garcia-Corral LS, Holding JM, Carrillo-de-Albornoz P, Steckbauer A, Pérez-Lorenzo M, et al. (2016) Effects of UVB radiation on net community production in the upper global ocean. Global Ecology and Biogeography 26: 54–64. Available: http://dx.doi.org/10.1111/geb.12513.
Publisher:
Wiley-Blackwell
Journal:
Global Ecology and Biogeography
Issue Date:
31-Aug-2016
DOI:
10.1111/geb.12513
Type:
Article
ISSN:
1466-822X
Sponsors:
This is a contribution to the Malaspina Expedition 2010, funded by the INGENIO 2010 CONSOLIDER programme (ref. CDS2008-00077) of the Spanish Ministry of Economy and Competitiveness. We thank the captain and the crew of R/V Hesperides and the UTM for their help onboard and technical support. We also want to thank A. M. Cabello, P. Rial, M. Estrada, M. Latasa, F. Rodrıguez and P. Mozetic for providing chlorophyll-a data, J. M. Gasol and X. A. G. Moran for provid- ing HPA data, E. Fraile-Nuez and V. Benıtez-Barrios for their work analysing the CTD data and all the Malaspina Expedition participants for their support. L.S.G.-C. was supported by a JAE Pre-doc fellowship from the Spanish National Research Council (CSIC) and the BBVA Foundation, Spain.
Additional Links:
http://onlinelibrary.wiley.com/doi/10.1111/geb.12513
Appears in Collections:
Articles; Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorGarcia-Corral, Lara S.en
dc.contributor.authorHolding, Johnna M.en
dc.contributor.authorCarrillo-de-Albornoz, Palomaen
dc.contributor.authorSteckbauer, Alexandraen
dc.contributor.authorPérez-Lorenzo, Maríaen
dc.contributor.authorNavarro, Nuriaen
dc.contributor.authorSerret, Pabloen
dc.contributor.authorDuarte, Carlos M.en
dc.contributor.authorAgusti, Susanaen
dc.date.accessioned2017-01-02T09:55:29Z-
dc.date.available2017-01-02T09:55:29Z-
dc.date.issued2016-08-31en
dc.identifier.citationGarcia-Corral LS, Holding JM, Carrillo-de-Albornoz P, Steckbauer A, Pérez-Lorenzo M, et al. (2016) Effects of UVB radiation on net community production in the upper global ocean. Global Ecology and Biogeography 26: 54–64. Available: http://dx.doi.org/10.1111/geb.12513.en
dc.identifier.issn1466-822Xen
dc.identifier.doi10.1111/geb.12513en
dc.identifier.urihttp://hdl.handle.net/10754/622539-
dc.description.abstractAim Erosion of the stratospheric ozone layer together with oligotrophication of the subtropical ocean is leading to enhanced exposure to ultraviolet B (UVB) radiation in ocean surface waters. The impact of increased exposure to UVB on planktonic primary producers and heterotrophs is uncertain. Here we test the null hypothesis that net community production (NCP) of plankton communities in surface waters of the tropical and subtropical ocean is not affected by ambient UVB radiation and extend this test to the global ocean, including the polar oceans and the Mediterranean Sea using previous results. Location We conducted experiments with 131 surface communities sampled during a circumnavigation cruise along the tropical and subtropical ocean and combined these results with 89 previous reports encompassing the Atlantic, Pacific, Arctic and Southern Oceans and the Mediterranean Sea. Methods The use of quartz (transparent to UVB radiation) and borosilicate glass materials (opaque to most UVB) for incubations allowed us to compare NCP between communities where UVB is excluded and those receiving natural UVB radiation. Results We found that NCP varies when exposed to natural UVB radiation compared to those where UVB was removed. NCP of autotrophic communities tended to decrease under natural UVB radiation, whereas the NCP of heterotrophic communities tended to increase. However, these variations showed the opposite trend under higher levels of UVB radiation. Main conclusions Our results suggest that earlier estimates of NCP for surface communities, which were hitherto derived using materials blocking UVB radiation were biased, with the direction and magnitude of this bias depending on the metabolic status of the communities and the underwater penetration of UVB radiation.en
dc.description.sponsorshipThis is a contribution to the Malaspina Expedition 2010, funded by the INGENIO 2010 CONSOLIDER programme (ref. CDS2008-00077) of the Spanish Ministry of Economy and Competitiveness. We thank the captain and the crew of R/V Hesperides and the UTM for their help onboard and technical support. We also want to thank A. M. Cabello, P. Rial, M. Estrada, M. Latasa, F. Rodrıguez and P. Mozetic for providing chlorophyll-a data, J. M. Gasol and X. A. G. Moran for provid- ing HPA data, E. Fraile-Nuez and V. Benıtez-Barrios for their work analysing the CTD data and all the Malaspina Expedition participants for their support. L.S.G.-C. was supported by a JAE Pre-doc fellowship from the Spanish National Research Council (CSIC) and the BBVA Foundation, Spain.en
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1111/geb.12513en
dc.subjectGlobal oceanen
dc.subjectmetabolic balanceen
dc.subjectnet community productionen
dc.subjectplankton communityen
dc.subjectsurface wateren
dc.subjectultraviolet radiationen
dc.titleEffects of UVB radiation on net community production in the upper global oceanen
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalGlobal Ecology and Biogeographyen
dc.contributor.institutionDepartment of Global Change Research, IMEDEA (CSIC-UIB) Instituto Mediterraneo de Estudios Avanzados, C/Miquel Marques 21, Esporles 07190, Islas Baleares, Spainen
dc.contributor.institutionArctic Research Center (ARC), Aarhus University, Ny Munkegade 114, Bldg 1540, DK-8000 Aarhus C, Denmarken
dc.contributor.institutionDepartamento de Ecologıa y Biologıa Animal, Facultade de Ciencias do Mar, Universidad de Vigo, Vigo E-36310, Spainen
dc.contributor.institutionArea de Biodiversidad y Conservacion ESCET, Universidad Rey Juan Carlos, Tulipan s/n, Mostoles, Madrid 28933, Spainen
kaust.authorCarrillo-de-Albornoz, Palomaen
kaust.authorDuarte, Carlos M.en
kaust.authorAgusti, Susanaen
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