Zooplankton šumavských jezer jako indikátor zotavování z acidity
CONCLUSIONS In my Ph.D. thesisthe ťollowingitems arediscussed It is hypothesisedthat Al govems the P availability in the acidified lakes, as well as shapesthe foodweb structure. Substantialportion of the plankton biomass in the Bohemian Forest lakes is createdby hetelotrophic fi|amentswhen filtering...
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2009
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Online Access: | http://www.nusl.cz/ntk/nusl-454104 |
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ndltd-nusl.cz-oai-invenio.nusl.cz-4541042021-11-29T05:23:24Z Zooplankton šumavských jezer jako indikátor zotavování z acidity Zooplankton of Bohemian Forest lakes as indicator of recovery from acidity Kohout, Leoš Fott, Jan Macháček, Jiří Bitušík, Peter CONCLUSIONS In my Ph.D. thesisthe ťollowingitems arediscussed It is hypothesisedthat Al govems the P availability in the acidified lakes, as well as shapesthe foodweb structure. Substantialportion of the plankton biomass in the Bohemian Forest lakes is createdby hetelotrophic fi|amentswhen filtering cladocerans aÍenot present (theyareextinctor occuÍseasonal1y). After ťrrstsigns in the nineties further evidence for the ongoing biological recovery was collected. Nevertheless, the lakes are still stongly or partially influenced by acidification and standardfood web relationshipshave not been restored. The significant hysteresisof biological recovery behind the reversal of lake chemistryin theBohemianForest and elsewherecould have severalreasons: - Isolationofremote headwaterlakes makestheprocessofzooplankton re- colonizationstochastic,theprobability being atleastfor somecnrstacean specieslow. The successdependson suitablevector ofpropagules and size of inoculum. - Strong invertebrate predation in some fishless lakes can cause abiological resistancepreventing from zooplankton recovery until fish retum. ln theBohemian Forest for instancethereaÍeknown populations of corixids in some lakes and numerousChaoborus larvae are observed from Laka Lake. - Currenthydrochemicalconditions are still hard for... 2009 info:eu-repo/semantics/doctoralThesis http://www.nusl.cz/ntk/nusl-454104 cze info:eu-repo/semantics/restrictedAccess |
collection |
NDLTD |
language |
Czech |
format |
Doctoral Thesis |
sources |
NDLTD |
description |
CONCLUSIONS In my Ph.D. thesisthe ťollowingitems arediscussed It is hypothesisedthat Al govems the P availability in the acidified lakes, as well as shapesthe foodweb structure. Substantialportion of the plankton biomass in the Bohemian Forest lakes is createdby hetelotrophic fi|amentswhen filtering cladocerans aÍenot present (theyareextinctor occuÍseasonal1y). After ťrrstsigns in the nineties further evidence for the ongoing biological recovery was collected. Nevertheless, the lakes are still stongly or partially influenced by acidification and standardfood web relationshipshave not been restored. The significant hysteresisof biological recovery behind the reversal of lake chemistryin theBohemianForest and elsewherecould have severalreasons: - Isolationofremote headwaterlakes makestheprocessofzooplankton re- colonizationstochastic,theprobability being atleastfor somecnrstacean specieslow. The successdependson suitablevector ofpropagules and size of inoculum. - Strong invertebrate predation in some fishless lakes can cause abiological resistancepreventing from zooplankton recovery until fish retum. ln theBohemian Forest for instancethereaÍeknown populations of corixids in some lakes and numerousChaoborus larvae are observed from Laka Lake. - Currenthydrochemicalconditions are still hard for... |
author2 |
Fott, Jan |
author_facet |
Fott, Jan Kohout, Leoš |
author |
Kohout, Leoš |
spellingShingle |
Kohout, Leoš Zooplankton šumavských jezer jako indikátor zotavování z acidity |
author_sort |
Kohout, Leoš |
title |
Zooplankton šumavských jezer jako indikátor zotavování z acidity |
title_short |
Zooplankton šumavských jezer jako indikátor zotavování z acidity |
title_full |
Zooplankton šumavských jezer jako indikátor zotavování z acidity |
title_fullStr |
Zooplankton šumavských jezer jako indikátor zotavování z acidity |
title_full_unstemmed |
Zooplankton šumavských jezer jako indikátor zotavování z acidity |
title_sort |
zooplankton šumavských jezer jako indikátor zotavování z acidity |
publishDate |
2009 |
url |
http://www.nusl.cz/ntk/nusl-454104 |
work_keys_str_mv |
AT kohoutleos zooplanktonsumavskychjezerjakoindikatorzotavovanizacidity AT kohoutleos zooplanktonofbohemianforestlakesasindicatorofrecoveryfromacidity |
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1723963233878933504 |