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    Temperature dependence of plankton community metabolism in the subtropical and tropical oceans

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    Type
    Article
    Authors
    Garcia-Corral, Lara S. cc
    Holding, Johnna M.
    Carrillo-de-Albornoz, Paloma cc
    Steckbauer, Alexandra
    Pérez-Lorenzo, María
    Navarro, Nuria
    Serret, Pablo
    Gasol, Josep M.
    Moran, Xose Anxelu G. cc
    Estrada, Marta cc
    Fraile-Nuez, Eugenio
    Benítez-Barrios, Verónica
    Agusti, Susana cc
    Duarte, Carlos M. cc
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Marine Science Program
    Red Sea Research Center (RSRC)
    Date
    2017-07-17
    Online Publication Date
    2017-07-17
    Print Publication Date
    2017-07
    Permanent link to this record
    http://hdl.handle.net/10754/625392
    
    Metadata
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    Abstract
    Here we assess the temperature dependence of the metabolic rates (gross primary production (GPP), community respiration (CR), and the ratio GPP/CR) of oceanic plankton communities. We compile data from 133 stations of the Malaspina 2010 Expedition, distributed among the subtropical and tropical Atlantic, Pacific, and Indian oceans. We used the in vitro technique to measured metabolic rates during 24 h incubations at three different sampled depths: surface, 20%, and 1% of the photosynthetically active radiation measured at surface. We also measured the % of ultraviolet B radiation (UVB) penetrating at surface waters. GPP and CR rates increased with warming, albeit different responses were observed for each sampled depth. The overall GPP/CR ratio declined with warming. Higher activation energies (E-a) were derived for both processes (GPP(Chla) = 0.97; CRChla = 1.26; CRHPA = 0.95 eV) compared to those previously reported. The Indian Ocean showed the highest E-a (GPP(Chla) = 1.70; CRChla = 1.48; CRHPA = 0.57 eV), while the Atlantic Ocean showed the lowest (GPP(Chla) = 0.86; CRChla = 0.77; CRHPA = -0.13 eV). We believe that the difference between previous assessments and the ones presented here can be explained by the overrepresentation of Atlantic communities in the previous data sets. We found that UVB radiation also affects the temperature dependence of surface GPP, which decreased rather than increased under high levels of UVB. Ocean warming, which causes stratification and oligotrophication of the subtropical and tropical oceans, may lead to reduced surface GPP as a result of increased penetration of UVB radiation.
    Citation
    Garcia-Corral LS, Holding JM, Carrillo-de-Albornoz P, Steckbauer A, Pérez-Lorenzo M, et al. (2017) Temperature dependence of plankton community metabolism in the subtropical and tropical oceans. Global Biogeochemical Cycles 31: 1141–1154. Available: http://dx.doi.org/10.1002/2017GB005629.
    Sponsors
    This is a contribution to the Malaspina Expedition 2010, funded by the INGENIO 2010 CONSOLIDER Program (CDS2008-00077) of the Spanish Ministry of Economy and Competitiveness. We thank the captain and crew of R/V Hesperides and the UTM for their technical support, all the participants of the Malaspina Expedition for providing CTD data and general support, and to Lopez-Urrutia for the help given in the data exploration. L. S. Garcia-Corral was supported by a JAE predoc fellowship from the Spanish National Research Council (CSIC) and the BBVA Foundation, Spain. Raw data set can be accessed and downloaded free from the data repository PANGAEA (R) (www.pangaea.de) under the link https://doi.pangaea.de/10.1594/PANGAEA.876455.
    Publisher
    American Geophysical Union (AGU)
    Journal
    Global Biogeochemical Cycles
    DOI
    10.1002/2017GB005629
    Additional Links
    http://onlinelibrary.wiley.com/doi/10.1002/2017GB005629/abstract
    Relations
    Is Supplemented By:
    • [Dataset]
      García-Corral, L. S., Holding, J., Carrillo-de-Albornoz, P., Steckbauer, A., Pérez-Lorenzo, M., Navarro, N., Serret, P., Gasol, J. M., Morán, X. A. G., Estrada, M., Fraile-Nuez, E., Benítez-Barrios, V. M., Agustí, S., & Duarte, C. M. (2017). Plankton community metabolism in the subtropical and tropical ocean, Malaspina 2010 Expedition, supplement to: García-Corral, Lara S; Holding, Johnna; Carrillo-de-Albornoz, Paloma; Steckbauer, Alexandra; Pérez-Lorenzo, Maria; Navarro, Nuria; Serret, Pablo; Gasol, Josep M; Morán, Xosé Anxelu G; Estrada, Marta; Fraile-Nuez, Eugenio; Benítez-Barrios, Verónica M; Agustí, Susana; Duarte, Carlos Manuel (2017): Temperature dependence of plankton community metabolism in the subtropical and tropical ocean. Global Biogeochemical Cycles, 31(7), 1141-1154 [Data set]. PANGAEA - Data Publisher for Earth & Environmental Science. https://doi.org/10.1594/PANGAEA.876455. DOI: 10.1594/pangaea.876455 Handle: 10754/663813
    ae974a485f413a2113503eed53cd6c53
    10.1002/2017GB005629
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Red Sea Research Center (RSRC); Marine Science Program

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