Sundh, Ingvar
- Department of Molecular Sciences, Swedish University of Agricultural Sciences
Abstract
We used phospholipid fatty acids (PLFA) to determine microbial biomass and community structure in the sediments of eight boreal lakes with different loadings of allochthonous organic carbon and total phosphorus (TP) in the water during the course of a year. The total concentration of PLFA, an estimate of the microbial biomass, depended more on TP, a proxy for pelagic primary production, but not on dissolved organic carbon, a proxy for terrestrial organic carbon input. The composition of PLFAs varied considerably over time, demonstrating seasonal dynamics in microbial community composition. When PLFA profiles in all lakes and seasons are compared, community composition is more similar within season than within lakes.
Published in
Limnology and Oceanography
2011, volume: 56, number: 2, pages: 725-733
Publisher: AMER SOC LIMNOLOGY OCEANOGRAPHY
SLU Authors
UKÄ Subject classification
Fish and Aquacultural Science
Environmental Sciences and Nature Conservation
Publication identifier
- DOI: https://doi.org/10.4319/lo.2011.56.2.0725
Permanent link to this page (URI)
https://res.slu.se/id/publ/57728