Population dynamics of Limnothrix redekei,Oscillatoria lanceaeformis,Planktothrix agardhii and Pseudanabaena limnetica (cyanobacteria) in a shallow hypertrophic lake (Spain) |
| |
Authors: | Rojo C. Alvarez Cobelas M. |
| |
Affiliation: | (1) Dpto. Microbiología, Fac. Biológicas, Univ. Valencia, Spain;(2) Centro de Ciencias Medioambientales (C.S.I.C.), Madrid, Spain |
| |
Abstract: | Populations of Limnothrix redekei, Oscillatoria lanceaeformis, Planktothrix agardhii and Pseudanabaena limnetica were found in a hypertrophic, gravel-pit lake near Madrid (Spain), throughout a one year sampling at weekly intervals. Physico-chemical factors, phytoplankton biomass and net growth rates were measured. Oscillatoria lanceaeformis was only observed a few weeks, probably being related to phosphorus limitation. Planktothrix agardhii biomass was related to PhAR irradiances, light attenuation coefficient in the water, Brunt-Väisäla frequency and decrease of soluble reactive phosphorus. Limnothrix redekei and Pseudanabaena limnetica biomass values were related to a decrease of inorganic nitrogen and temperature. A different lag response of populations was observed in relation to the environmental features. |
| |
Keywords: | Cyanobacteria population dynamics hypertrophic lakes phytoplankton |
本文献已被 SpringerLink 等数据库收录! |
|