## Sites and methods The populations of bacteria were followed for a year in two small shallow lakes, one naturally eutrophic (Upton Broad), the other culturally eutrophic (Alderfen Broad). In Upton Broad there were peaks in population in summer and late autumn. In Alderfen Broad peaks occurred at
Composition, dynamics and production of Rotatoria in the plankton of some lakes of the Danube Delta
β Scribed by S. Godeanu; V. Zinevici
- Publisher
- Springer
- Year
- 1983
- Tongue
- English
- Weight
- 502 KB
- Volume
- 104
- Category
- Article
- ISSN
- 1573-5141
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β¦ Synopsis
The Rosu, Puiu and Porcu lakes from the Danube Delta are lacustrine ecosystems characterized by a particularly great variation of the biotic and abiotic factors . This variation causes the development of a zooplankton reduced from the point of view of number and biomass, but rich from the taxonomic point of view . Its monthly and annual fluctuations can hardly be correlated to the rest of the plankton fauna and microflora . Rotifer production is low, turnover at the level of plankton rotifers being relatively uniform and dependent on water temperature .
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The seasonal dynamics of the biomass and production of phyto-, zoo-and bacterioplankton was investigated during the vegetation periods (from May to November) in 1985 and 1986 in the pelagial of the large eutrophic lake Peipsi (Estonia). The average values of productions per vegetation period for the
During 1989 and 1990 the carbon dynamics in the shallow eutrophic Lake Miigplsee (Berlin) were investigated by analysing the seasonal succession of phytoplankton, metazooplankton, protozooplankton and bacteria. Size fractionated &gal primary production and exudation were measured as well as bacteria
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