About: The occurrence of a bloom-forming green alga Pleodorina indica (Volvocales) in the downstream reach of the River Malše (Czech Republic)     Goto   Sponge   NotDistinct   Permalink

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  • In mid-August 2003 a massive bloom of the green alga Pleodorina indica (Iyengar) Nozaki (Volvocales) occurred in the downstream reach of the River Malše in the Czech Republic. An exceptionally long period of the hot dry weather resulted in low flow conditions and warm water temperatures. These environmental conditions combined with high nutrient concentrations led to the macroscopic appearance of P. indica in the form of an extensive surface scum formation with diurnal changes. The alga soon dominated the river phytoplankton; attaining concentrations of two thousand colonies per millilitre. The bloom persisted in the river from the 10 through the 17 August when it was eventually flushed out. Pleodorina indica is an indigenous species of tropical climatic regions and prior to this its massive occurrence has not been reported in the temperate region of Central Europe.
  • In mid-August 2003 a massive bloom of the green alga Pleodorina indica (Iyengar) Nozaki (Volvocales) occurred in the downstream reach of the River Malše in the Czech Republic. An exceptionally long period of the hot dry weather resulted in low flow conditions and warm water temperatures. These environmental conditions combined with high nutrient concentrations led to the macroscopic appearance of P. indica in the form of an extensive surface scum formation with diurnal changes. The alga soon dominated the river phytoplankton; attaining concentrations of two thousand colonies per millilitre. The bloom persisted in the river from the 10 through the 17 August when it was eventually flushed out. Pleodorina indica is an indigenous species of tropical climatic regions and prior to this its massive occurrence has not been reported in the temperate region of Central Europe. (en)
  • V polovině srpna roku 2003 bylo zaznamenáno přemnožení tropické zelené řasy Pleodorina indica na dolním toku řeky Malše. Tomuto jevu předcházelo období extrémně vysokých teplot a nízkých srážek, které způsobily, že průtok v řece Malši klesnul na minimum. Neobvykle horké a suché počasí společně s dostatkem živin byly zřejmě klíčovým faktorem pro masový rozvoj této řasy, která na některých místech řeky vytvářela souvislou několika centimetrovou vrstvu. Na některých místech dosáhla Pleodorina indica abundance až 2 tisíce kolonií na ml. Tento neobvyklý fenomén trval pouze deset dní (10. - 17. srpen) během nichž došlo k postupnému vypláchnutí nahromaděné biomasy z místa jejího výskytu. Pleodorina indica je málo známá, tropická zelená řasa, která se u nás doposud nikdy nevyskytla a její přítomnost na našem území není doposud uspokojivě zodpovězena. (cs)
Title
  • The occurrence of a bloom-forming green alga Pleodorina indica (Volvocales) in the downstream reach of the River Malše (Czech Republic)
  • Masový výskyt tropické zelené řasy Pleodorina indica (Volvocales) na dolním toku řeky Malše (cs)
  • The occurrence of a bloom-forming green alga Pleodorina indica (Volvocales) in the downstream reach of the River Malše (Czech Republic) (en)
skos:prefLabel
  • The occurrence of a bloom-forming green alga Pleodorina indica (Volvocales) in the downstream reach of the River Malše (Czech Republic)
  • Masový výskyt tropické zelené řasy Pleodorina indica (Volvocales) na dolním toku řeky Malše (cs)
  • The occurrence of a bloom-forming green alga Pleodorina indica (Volvocales) in the downstream reach of the River Malše (Czech Republic) (en)
skos:notation
  • RIV/60077387:_____/05:00026146!RIV06-AV0-60077387
http://linked.open.../vavai/riv/strany
  • 221;228
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(IBS6017004), Z(AV0Z60170517)
http://linked.open...iv/cisloPeriodika
  • 1
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 533932
http://linked.open...ai/riv/idVysledku
  • RIV/60077387:_____/05:00026146
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • green algae; Pleodorina indica; water bloom (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [DC308E2B14F5]
http://linked.open...i/riv/nazevZdroje
  • Hydrobiologia
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 541
http://linked.open...iv/tvurceVysledku
  • Jezberová, Jitka
  • Znachor, Petr
http://linked.open...n/vavai/riv/zamer
issn
  • 0018-8158
number of pages
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