6533b7dbfe1ef96bd126ffbe
RESEARCH PRODUCT
Evaluation of plankton communities in small highly humic bog lakes in Latvia
Maris KlavinsL. UrtaneI. DruvietisGunta Springesubject
lcsh:GE1-350geographyBiomass (ecology)geography.geographical_feature_categoryEcologyfungiBacterioplanktonBiologyPlanktoncomplex mixturesZooplanktonhumanitiesPhytoplanktonEcosystemBoglcsh:Environmental sciencesGeneral Environmental ScienceTrophic leveldescription
This paper reports the results of a study performed at the Teici State Reserve in Latvia The results indicated that algal communities in brown water lakes were formed by species that were tolerant to a low pH and high humic substance concentration. The composition of the species of phytoplankton and zooplankton was comparatively simple. A significant correlation was found between the number of species of phytoplankton, zooplankton, and the pH value. Similarly there was a clear relationship between the taxonomic composition of phytoplankton, zooplankton, and the trophic state of the lakes. Dyseutrophic lakes were characterized by comparatively higher biodiversity of planktonic communities than dystrophic lakes. There was also a correlation between humic substance concentration and total bacterial numbers, and humic substance concentration and total number of zooplankton, respectively. The composition of the species, the biomass of phytoplankton and zooplankton, as well as the numbers of bacterioplankton, were specific for humic lakes and could assist in the identification of the unaffected state of bog lakes ecosystems.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-07-01 | Environment International |