Diatoms community structure in superficial sediments of eight Andean lakes of central Chile

Alvial, Ingrid E.; Cruces, Fabiola J.; Araneda, Alberto E.; Grosjean, Martin; Urrutia, Roberto E. (2008). Diatoms community structure in superficial sediments of eight Andean lakes of central Chile. Revista chilena de historia natural, 81(1), pp. 83-94. Santiago, Chile: Sociedad de Biología de Chile 10.4067/S0716-078X2008000100007

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In this research the taxonomic structure of diatoms in sediments of high mountain lakes was studied. These lakes are located in Chile between 32°49' and 38°48' S in the Andean Cordillera. A total of 99 diatom taxa distributed in 48 genera were identified and all this taxa are cosmopolitan excepting a Eunotia andinofrequens, Gomphonema punae, Pinnularia araucanensis and Pinnularia acidicola, which are know only for the Southern Hemisphere. The assemblages of diatoms were different in the studied lakes. So the high mountain lakes Ocho, Huifa, Ensueño and Negra, dominated benthic diatoms which are typical of oligotrophic and acid waters as Achnanthidium exiguum, Achnanthidium minutissimum, Encyonema minutum, Pinnularia acidicola and Planothidium lanceolatum. In the assemblages from lakes Galletué, Icalma and Laja planktonic diatoms were more abundant, which are common in alkaline and mesotrophic waters, e.g., Asterionella formosa, Aulacoseira distans, Aulacoseira granulata, Cyclotella stelligera and Rhopalodia gibba.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Geography > Physical Geography > Unit Paleolimnology
10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR)
08 Faculty of Science > Institute of Geography

UniBE Contributor:

Grosjean, Martin

Subjects:

500 Science > 550 Earth sciences & geology

ISSN:

0716-078X

Publisher:

Sociedad de Biología de Chile

Language:

Español

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 15:17

Last Modified:

05 Oct 2015 20:06

Publisher DOI:

10.4067/S0716-078X2008000100007

Web of Science ID:

000254704700007

BORIS DOI:

10.7892/boris.34318

URI:

https://boris.unibe.ch/id/eprint/34318 (FactScience: 200263)

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