Contribution
The phytoplankton of Lago Rupanco, Osorno, Chile
Donoso, Teresa G.; Phinney, Harry K.
Archiv für Hydrobiologie Volume 113 Number 2 (1988), p. 189 - 211
21 références bibliographiques
publié: Aug 26, 1988
DOI: 10.1127/archiv-hydrobiol/113/1988/189
ArtNo. ESP141011302002, Prix: 29.00 €
Abstract
Lago Rupanco is located at 40° 50'S; 72° 30'W at 117 m above sea level, and corresponds to type 28c of Hutchinson’s (1967) classification. Lago Rupanco is a warm, monomictic, oligotrophic lake, with winter circulation and summer stratification. The phytoplankton was analysed qualitatively and quantitatively. A total of 84 taxa was identified. Maximum and minimum values of phytoplankton relative abundance occurred in spring and fall, respectively. The phytoplankton biomass was at its maximum in summer and at its minimum in fall. Four species were most abundant, Melosira granulata, Sphaerocystis schroeteri, Botryococcus braunii and Dinobryon divergens. Seasonal succession among the Bacillariophyceae, Chlorophyceae and Chrysophyceae was observed. The relationships between abiotic factors and the phytoplankton standing crop are discussed.
Mots-clefs
phytoplankton • Lago Rupanco • Osorno • Chile