Nutrient limitation affects biofilm enzymatic activities in a glacier-fed river

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dc.creator Martyniuk, Nicolás
dc.creator Souza, Maria Sol
dc.creator Bastidas Navarro, Marcela
dc.creator Balseiro, Esteban
dc.creator Modenutti, Beatriz
dc.date 2022-03-07
dc.date.accessioned 2022-03-29T14:07:50Z
dc.date.available 2022-03-29T14:07:50Z
dc.identifier http://rdi.uncoma.edu.ar/handle/uncomaid/16659
dc.description.abstract In the Patagonian Andes, glaciers of Tronador Mountain are headwaters of Manso River that drains glacial waters into Lake Mascardi. The river receives different tributaries that differ in turbidity and canopy. In this scenario we performed a field study to elucidate the effect of the input of tributary streams on the elemental limitation of the biofilm of the main glacier-fed river. We analyzed through general additive models and standardized major axis regressions the activities of two extracellular enzymes, β- glucosidase (GLU) and alkaline phosphatase (APA). We hypothesized that their ratio would reflect stoichiometric constraints to changes in the relative availability of carbon and phosphorus due to tributary streams’ influence. Along the glacier-fed river, we observed a decrease in the glacial influence and a spatial shift in P and dissolved organic carbon availability, that affected biofilm enzymatic activity. High enzymatic activity of GLU and APA in biofilm was related to low nutrient fluxes in stream water. In addition, the analysis of GLU and APA showed a switch in elemental limitation from Climitation in headwaters to P-limitation downstream. Finally, our results showed that biofilm enzymatic activity is a good ecological indicator to analyze changes in glacier retreat and their consequences in glacier-fed streams. es_ES
dc.format application/ms-excel es_ES
dc.language eng es_ES
dc.publisher Springer Nature es_ES
dc.rights Atribución-NoComercial-CompartirIgual 2.5 Argentina es_ES
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ es_ES
dc.source Hydrobiologia es_ES
dc.subject β-Glucosidase es_ES
dc.subject Alkaline phosphatase es_ES
dc.subject Attached communities es_ES
dc.subject Glacier systems es_ES
dc.subject Stream es_ES
dc.subject Ecological stoichiometry es_ES
dc.subject https://purl.org/becyt/ford/1
dc.subject.other Ciencias de la Tierra y Medio Ambiente es_ES
dc.title Nutrient limitation affects biofilm enzymatic activities in a glacier-fed river es_ES
dc.type conjunto de datos es
dc.type other eu
dc.type acceptedVersion eu
dc.description.fil Fil: Martyniuk, Nicolás. Universidad Nacional del Comahue. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. es_ES
dc.description.fil Fil: Martyniuk, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. es_ES
dc.description.fil Fil: Souza, Maria Sol. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina. es_ES
dc.description.fil Fil: Bastidas Navarro, Marcela. Universidad Nacional del Comahue. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. es_ES
dc.description.fil Fil: Bastidas Navarro, Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. es_ES
dc.description.fil Fil: Balseiro, Esteban. Universidad Nacional del Comahue. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. es_ES
dc.description.fil Fil: Balseiro, Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. es_ES
dc.description.fil Fil: Modenutti, Beatriz. Universidad Nacional del Comahue. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. es_ES
dc.description.fil Fil: Modenutti, Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. es_ES
dc.relation.alternativeid https://doi.org/10.1007/s10750-022-04857-1
dc.cole Datos primarios de investigación es_ES


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