Palaeolimnologiacal analysis of microcrustaceans
Informations
- Funding country
Hungary- Acronym
- -
- URL
- -
- Start date
- 2/1/2005
- End date
- 12/31/2008
- Budget
- 23,443 EUR
Fundings
| Name | Role | Start | End | Amount |
|---|---|---|---|---|
| Thematic Programme | Grant | 2/1/2005 | 12/31/2008 | 23,443 EUR |
Abstract
Aim of study is the palaeolimnological reconstruction of several water bodies (lakes and oxbows) exposed to different human impacts using microcrustacean remains. Samples will be taken from Lake Balaton (Keszthely and Siófok basin), Zalavári Pond in Kis-Balaton Water Protection System (it was the fifth basin of Lake Balaton) and two oxbows of Tisza River. Dating and multi-proxy analysis will be done for palaeolimnological reconstruction such as cladoceran remains, heavy metal content, dormant eggs and allozyme analysis along sediment cores. Species composition of the subfossil zooplankton community can be reconstructed by its remains. It also provides an opportunity to make a quantitative approach, which helps to infer trophic level and water quality. Comparison between recent and ancient crustacean community helps us to establish the ecological status of lakes as a target state for European Water Framework Directive. Dormant egg banks integrate spatio-temporal heterogeneity in cladoceran community, thus analysis of dormant egg banks support us to determine potential biodiversity from which an actual diversity of microcrustacean community can be realised. Hatching of Daphnia ephippia from the sediment supplies specimens for the allozyme study to reconstruct population genetic structure and microevolutionary processes due to changes in environmental factors.