Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/49868
DC FieldValueLanguage
dc.contributor.authorLehette, Pascalen_US
dc.contributor.authorTovar-Sánchez, Antonioen_US
dc.contributor.authorDuarte, Carlos M.en_US
dc.contributor.authorHernández-León, Santiagoen_US
dc.date.accessioned2018-11-24T11:23:35Z-
dc.date.available2018-11-24T11:23:35Z-
dc.date.issued2012en_US
dc.identifier.issn0171-8630en_US
dc.identifier.urihttp://hdl.handle.net/10553/49868-
dc.description.abstractDuring the austral summer, zooplankton excretion along the western Antarctic Peninsula was studied in a contrasting hydrographic regime including coastal and oceanic waters. In coastal waters, ammonium supply by mesozooplankton indicated a low contribution to fuel primary production. In oceanic waters, however, Antarctic krill Euphausia superba contributed a significant percentage to the nitrogen requirements of primary producers. Thus, the ontogenetic migration of adult krill during austral summer should be a key factor regulating the regenerated ammonium for primary production. A significant coupling of ammonium concentration in the water column and in situ krill biomass supported the significant role of krill excretion in the epipelagic realm. Results from short-term experiments with E. superba indicated that ammonium excretion rates were much higher than previously found. Because the use of experimental metabolic rates that are close to field rates would be more appropriate, we suggest to re-assess the ammonium supplied by the epipelagic marine biota. Moreover, the outcomes of experimental krill excretion rates, in situ measurements of ammonium and a review of data on primary production suggest that Antarctic krill sustain a high proportion of the daily phytoplankton production.en_US
dc.languageengen_US
dc.publisher0171-8630
dc.relation.ispartofMarine Ecology - Progress Seriesen_US
dc.sourceMarine Ecology Progress Series [ISSN 0171-8630], v. 459, p. 29-38en_US
dc.subject251001 Oceanografía biológicaen_US
dc.subject.otherKrillen_US
dc.subject.otherAmmoniumen_US
dc.subject.otherPrimary productionen_US
dc.subject.otherEuphausia superbaen_US
dc.subject.otherSouthern Oceanen_US
dc.subject.otherAustral summeren_US
dc.subject.otherWestern Antarctic Peninsulaen_US
dc.titleKrill excretion and its effect on primary productionen_US
dc.typeinfo:eu-repo/semantics/Articleen_US
dc.typeArticleen_US
dc.identifier.doi10.3354/meps09746
dc.identifier.scopus84863845571-
dc.identifier.isi000306322300003
dc.contributor.authorscopusid35107243800-
dc.contributor.authorscopusid6602867315-
dc.contributor.authorscopusid55636631300-
dc.contributor.authorscopusid6701465678-
dc.description.lastpage38-
dc.description.firstpage29-
dc.relation.volume459-
dc.investigacionCienciasen_US
dc.type2Artículoen_US
dc.contributor.daisngid4385782
dc.contributor.daisngid5950545
dc.contributor.daisngid20777
dc.contributor.daisngid489706
dc.utils.revisionen_US
dc.contributor.wosstandardWOS:Lehette, P
dc.contributor.wosstandardWOS:Tovar-Sanchez, A
dc.contributor.wosstandardWOS:Duarte, CM
dc.contributor.wosstandardWOS:Hernandez-Leon, S
dc.date.coverdateJulio 2012
dc.identifier.ulpgces
dc.description.sjr1,681
dc.description.jcr2,546
dc.description.sjrqQ1
dc.description.jcrqQ1
dc.description.scieSCIE
item.grantfulltextopen-
item.fulltextCon texto completo-
crisitem.author.deptGIR IOCAG: Oceanografía Biológica y Cambio Global-
crisitem.author.deptIU de Oceanografía y Cambio Global-
crisitem.author.deptDepartamento de Biología-
crisitem.author.orcid0000-0002-3085-4969-
crisitem.author.parentorgIU de Oceanografía y Cambio Global-
crisitem.author.fullNameHernández León, Santiago Manuel-
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