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Latin american journal of aquatic research

On-line version ISSN 0718-560X

Abstract

FUENTES, Norka  and  GAJARDO, Gonzalo. A glimpse to Laguna de los Cisnes, a field laboratory and natural monument in the Chilean Patagonia. Lat. Am. J. Aquat. Res. [online]. 2017, vol.45, n.2, pp.491-495. ISSN 0718-560X.  http://dx.doi.org/10.3856/vol45-issue2-fulltext-24.

ABSTRACT. Laguna de los Cisnes (53°15'S) is a remote and unusual salty lagoon located in the Chilean Patagonia, declared natural monument to protect bird diversity in the area, which could also serve as a natural laboratory to monitor climate change. This study reports basic water, sediment and plankton characteristics observed during a summer (December) sampling, when the lagoon was hypersaline (51 g L-1), cold (9°C) and eutrophic, according to the high concentrations of phosphorous (0.30 ± 0.73 mg L-1), nitrate (0.66 ± 0.14 mg L-1) and chlorophyll-a (44.25 ± 2.52 μg L-1). The microalgae Spirogyra sp. and the micro-crustacean Artemia are predominating plankton. Results are discussed in the context of the climatic conditions affecting this lagoon year-round.

Keywords : Artemia; plankton; algae; hydrographic parameters; salty lagoon; southern Chile.

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