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Abstract:

We carried out a set of experiments in a small clear-water lake in northern Sweden during summer 2010 to assess the effect of organic C (OC) released from epipelic algae on pelagic bacterial production (BP). The release rate of OC (dissolved and particulate) from epipelic algae was ∼45.4 ng C m -2 h-1. Bacterioplankton uptake of dissolved OC was P-limited, and pelagic primary production (PP) was colimited by N and P. Pelagic BP (3.2 ± 6 μg C L-1 h-1) exceeded pelagic PP (0.012 ± 0.008 μg C L-1 h-1). Pelagic BP was higher in lake water in contact with sediments and the epipelic algae growing on their surface than in water separated from the sediments. Epipelic algae release OC to lake water and potentially stimulate pelagic BP. However, exploitation of benthic OC probably is suboptimal because of nutrient limitation (primarily by inorganic P) of BP. © 2013 by The Society for Freshwater Science.

Registro:

Documento: Artículo
Título:Benthic organic carbon release stimulates bacterioplankton production in a clear-water subarctic lake
Autor:Rodríguez, P.; Ask, J.; Hein, C.L.; Jansson, M.; Karlsson, J.
Filiación:Department of Ecology, Genetics and Evolution, School of Exact and Natural Sciences, University of Buenos Aires, C1428EHA, Argentina
Department of Ecology and Environmental Science, Umeå University, 901 87 Umeå, Sweden
Climate Impacts Research Centre (CIRC), Department of Ecology and Environmental Science, Umeå University, Box 62, 981 07 Abisko, Sweden
Palabras clave:Bacterioplankton production; Benthic algae; Clear-water lake; Organic carbon; Sediment; algal community; bacterioplankton; bacterium; benthos; lacustrine deposit; lake ecosystem; lake water; nitrogen; nutrient limitation; organic carbon; phosphorus; primary production; subarctic region; Sweden; algae; Bacteria (microorganisms)
Año:2013
Volumen:32
Número:1
Página de inicio:176
Página de fin:182
DOI: http://dx.doi.org/10.1899/12-005.1
Título revista:Freshwater Science
Título revista abreviado:Freshwater Sci.
ISSN:21619549
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_21619549_v32_n1_p176_Rodriguez

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Citas:

---------- APA ----------
Rodríguez, P., Ask, J., Hein, C.L., Jansson, M. & Karlsson, J. (2013) . Benthic organic carbon release stimulates bacterioplankton production in a clear-water subarctic lake. Freshwater Science, 32(1), 176-182.
http://dx.doi.org/10.1899/12-005.1
---------- CHICAGO ----------
Rodríguez, P., Ask, J., Hein, C.L., Jansson, M., Karlsson, J. "Benthic organic carbon release stimulates bacterioplankton production in a clear-water subarctic lake" . Freshwater Science 32, no. 1 (2013) : 176-182.
http://dx.doi.org/10.1899/12-005.1
---------- MLA ----------
Rodríguez, P., Ask, J., Hein, C.L., Jansson, M., Karlsson, J. "Benthic organic carbon release stimulates bacterioplankton production in a clear-water subarctic lake" . Freshwater Science, vol. 32, no. 1, 2013, pp. 176-182.
http://dx.doi.org/10.1899/12-005.1
---------- VANCOUVER ----------
Rodríguez, P., Ask, J., Hein, C.L., Jansson, M., Karlsson, J. Benthic organic carbon release stimulates bacterioplankton production in a clear-water subarctic lake. Freshwater Sci. 2013;32(1):176-182.
http://dx.doi.org/10.1899/12-005.1