Patterns in pelagic metabolism in the Mediterranean Sea

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dc.contributor.author Regaudie-de-Gioux, A.
dc.contributor.author Vaquer-Sunyer, Raquel
dc.contributor.author Duarte Quesada, Carlos M.
dc.date.accessioned 2015-09-18T12:55:31Z
dc.date.available 2015-09-18T12:55:31Z
dc.date.issued 2009-12-17
dc.identifier.citation 1726-4170
dc.identifier.uri http://hdl.handle.net/11201/1259
dc.description.abstract Planktonic gross community production (GPP), net community production (NCP) and community respiration (CR) across the Mediterranean Sea was examined in two cruises, Thresholds 2006 and 2007, each crossing the Mediterranean from West to East to test for consistent variation along this longitudinal gradient in late spring to early summer. GPP averaged 2.4 +/- 0.4 mmol O-2 m(-3) d(-1), CR averaged 3.8 +/- 0.5 mmol O-2 m(-3) d(-1), and NCP averaged - 0.8 +/- 0.6 mmol O-2 m(-3) d(-1) across the studied sections, indicative of a tendency for a net heterotrophic metabolism in late spring to early summer, prevalent across studied sections of the Mediterranean Sea as reflected in 70% of negative NCP estimates. The median P/R ratio was 0.6, also indicating a strong prevalence of heterotrophic communities (P/R < 1) along the studied sections of the Mediterranean Sea. The communities tended to be net heterotrophic (i.e. P/R < 1) at GPP less than 2.8 mmol O-2 m(-3) d(-1). The Western Mediterranean tended to support a higher gross primary production and community respiration than the Eastern basin did, but these differences were not statistically significant (t-test, p > 0.05). The net heterotrophy of the studied sections of the Mediterranean Sea indicates that allochthonous carbon should be important to subsidise planktonic metabolism during the late spring.
dc.publisher European Geosciences Union (EGU) / Copernicus Publications
dc.relation.isformatof Reproducció del document publicat a: 10.5194/bg-6-3081-2009
dc.relation.ispartof Biogeosciences, 2009, vol. 6, p. 3081-3089
dc.rights cc-by (c) Regaudie-de-Gioux, A. et al., 2009
dc.rights.uri http://creativecommons.org/licenses/by/3.0/es
dc.title Patterns in pelagic metabolism in the Mediterranean Sea
dc.type info:eu-repo/semantics/article
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2015-09-18T12:55:31Z
dc.subject.keywords Respiration
dc.subject.keywords planktonic metabolism
dc.subject.keywords net community production
dc.subject.keywords Gross primary production
dc.subject.keywords aquatic ecosystems
dc.rights.accessRights info:eu-repo/semantics/openAccess


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cc-by (c) Regaudie-de-Gioux, A. et al., 2009 Except where otherwise noted, this item's license is described as cc-by (c) Regaudie-de-Gioux, A. et al., 2009

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