Growth characteristics of small and large free-living and attached bacteria in Lake Constance
- 1 March 1988
- journal article
- research article
- Published by Springer Nature in Microbial Ecology
- Vol. 15 (2) , 151-163
- https://doi.org/10.1007/bf02011709
Abstract
The growth characteristics of small (0.2–1.0μm) and large (1.0–3.0 (μm) free-living and attached bacteria were studied in Lake Constance by comparing the spatial and seasonal dynamics of their biomass turnover time (ratio of biomass/production). The biomass of small free-living bacteria usually turned over significantly faster than that of large free-living bacteria throughout the water column. The turnover of attached bacterial biomass was characterized by large fluctuations. Occasionally, in aphotic water layers, it was as long as that of large free-living bacteria, but when large amounts of decaying organic particles were present, it was shorter than that of small free-living cells. Biomass turnover times of free-living bacteria were in the same range as their generation times, which were estimated from the increase in bacterial abundance in 3μm prefiltered samples. The biomass turnover time of actively metabolizing bacteria was comparable to the generation time of actively metabolizing cells. These results indicate that the biomass turnover time is a useful indicator of the growth of different bacterial fractions, as it reflects their different amounts of participation in microbial processes of aquatic ecosystems.This publication has 59 references indexed in Scilit:
- Loss processes influencing growth of planktonic bacterial populations in Lake ConstanceJournal of Plankton Research, 1986
- Size-selective grazing by a microflagellate on pelagic bacteriaMarine Ecology Progress Series, 1986
- The growth of heterotrophic bacteria in the surface waters of warm core rings1Limnology and Oceanography, 1985
- Direct measurement of bacterial productivity in stratified waters close to a front in the Irish SeaMarine Ecology Progress Series, 1985
- Distribution and activity of bacteria in the headwaters of the Rhode River Estuary, Maryland, USAMicrobial Ecology, 1984
- Measuring microzooplankton grazing on planktonic marine bacteria by its impact on bacterial productionMicrobial Ecology, 1984
- Diel changes in bacterial biomass and growth rates in coastal environments, determined by means of thymidine incorporation into DNA, frequency of dividing cells (FDC), and microautoradiographyMarine Ecology Progress Series, 1984
- The production of bacteria attached to particles suspended in a freshwater pond1Limnology and Oceanography, 1983
- Growth and uptake kinetics of a facultatively oligotrophic bacterium at low nutrient concentrationsMicrobial Ecology, 1982
- Grazing by protozoa as selection factor for activated sludge bacteriaMicrobial Ecology, 1979