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dc.contributor.author
Torres, Américo Iadran
dc.contributor.author
Gil, Monica Noemi
dc.contributor.author
Esteves, Jose Luis
dc.date.available
2020-05-06T15:14:50Z
dc.date.issued
2004-06
dc.identifier.citation
Torres, Américo Iadran; Gil, Monica Noemi; Esteves, Jose Luis; Nutrient uptake rates by the alien alga Undaria pinnatifida (Phaeophyta) (Nuevo Gulf, Patagonia, Argentina) when exposed to diluted sewage effluent; Springer; Hydrobiologia; 520; 1-3; 6-2004; 1-6
dc.identifier.issn
0018-8158
dc.identifier.uri
http://hdl.handle.net/11336/104326
dc.description.abstract
In the early nineties, Undaria pinnatifida has been accidentally introduced to Nuevo Gulf (Patagonia, Argentina) where the environmental conditions would have favored its expansion. The effect of the secondary treated sewage discharge from Puerto Madryn city into Nueva Bay (located in the western extreme of Nuevo Gulf) is one of the probable factors to be taken into account. Laboratory cultures of this macroalgae were conducted in seawater enriched with the effluent. The nutrients (ammonium, nitrate and phosphate) uptake kinetics was studied at constant temperature and radiation (16 °C and 50 μE m−2 s−1 respectively). Uptake kinetics of both inorganic forms of nitrogen were described by the Michaelis?Menten model during the surge phase (ammonium: V max sur: 218.1 μmol h−1 g−1, K s sur: 476.5 μM and nitrate V max sur: 10.7 μmol h−1 g−1, K s sur: 6.1 μM) and during the assimilation phase (ammonium: V max ass: 135.6 μmol h−1 g−1, K s ass: 407.2 μM and nitrate V max ass: 1.9 μmol h−1 g−1, K s ass: 2.2 μM), with ammonium rates always higher than those of nitrate. Even though a net phosphate disappearance was observed in all treatments, uptake kinetics of this ion could not be properly estimated by the employed methodology.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
SEWAGE
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ALIEN SPECIES
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UNDARIA PINNATIFIDA
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NUTRIENTS
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UPTAKE RATES
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PATAGONIA
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Otras Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Nutrient uptake rates by the alien alga Undaria pinnatifida (Phaeophyta) (Nuevo Gulf, Patagonia, Argentina) when exposed to diluted sewage effluent
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-04-27T14:41:48Z
dc.identifier.eissn
1573-5117
dc.journal.volume
520
dc.journal.number
1-3
dc.journal.pagination
1-6
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Torres, Américo Iadran. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
dc.description.fil
Fil: Gil, Monica Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
dc.description.fil
Fil: Esteves, Jose Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
dc.journal.title
Hydrobiologia
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1023/B:HYDR.0000027686.63170.6c
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1023/B:HYDR.0000027686.63170.6c
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