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Ecomicrobiology and microbial assimilative capacity of the oligotrophic Andean Lake Laja, Chile RChHN
KARRASCH,BERNHARD; WOELFL,STEFAN; URRUTIA,ROBERTO; GONZÁLEZ,JENNY; VALDOVINOS,CLAUDIO; CID,HERNÁN; PARRA,OSCAR.
A strong socio-economic development pressure in South Chile will more and more cause an impact to the present lakes and rivers. Nevertheless, our knowledge concerning the ecological structure and the microbial self-purification capabilities of these lacustrine water bodies is scant but essential for a future sustainable development of land and water use. We studied Lake Laja, a lake already heavily impacted by water diversions for hydropower generation and irrigation. Typical for the Andean region Lake Laja is an oligotrophic water body, limited by nitrogen nutrients. Only very low chlorophyll a and particulate organic carbon (POC) concentrations and a small abundance and biomass of bacteria (mainly ultramicrobacteria) and heterotrophic flagellates were...
Tipo: Journal article Palavras-chave: Bacterioplankton extracellular enzymes heterotrophic flagellates N-limitation; Phytoplankton.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2011000300010
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