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Effects of extreme floods on the Daphnia ephippial egg bank in a long narrow reservoir
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SYSNO ASEP 0360688 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Effects of extreme floods on the Daphnia ephippial egg bank in a long narrow reservoir Tvůrce(i) Vaníčková, Ivana (BC-A) RID
Seďa, Jaromír (BC-A) RID
Macháček, Jiří (BC-A) RID
Petrusek, A. (CZ)Zdroj.dok. Journal of Limnology. - : PagePress - ISSN 1129-5767
Roč. 70, č. 2 (2011), s. 369-377Poč.str. 9 s. Akce International Conference on Invertebrate Reproduction and Development in the Age of Genetic Modifications Datum konání 16.08.2010-20.08.2010 Místo konání Praha Země CZ - Česká republika Typ akce WRD Jazyk dok. eng - angličtina Země vyd. IT - Itálie Klíč. slova resting eggs ; ephippium ; flood ; canyon-shaped reservoir ; Daphnia longispina complex Vědní obor RIV DA - Hydrologie a limnologie CEP GA206/04/0190 GA ČR - Grantová agentura ČR IAA600960901 GA AV ČR - Akademie věd 1QS600170504 GA AV ČR - Akademie věd CEZ AV0Z60170517 - HBU-Z, BC-A (2005-2011) UT WOS 000294320400026 DOI 10.4081/jlimnol.2011.369 Anotace Daphnia egg banks are important reservoirs of dormant stages. Although the hatching is probably of minor importance in water bodies with a permanent population, this may differ after major disturbances. In 2006, two 500-year floods hit the Vranov Reservoir (Czech Republic), in which we had investigated population of the Daphnia longispina complex in preceding years. In this study we focused on the impact of those floods on the dormant egg bank. A year after the floods, we did not observe any sediment layer that would be devoid of ephippia, however, we observed a significant increase in the proportion of empty ephippia and a decrease in the proportion of those containing eggs. We attribute these changes to flood disturbance, which caused redistribution of stored ephippia and those detached from the shoreline. Deposited to shallow parts of reservoir after the floods, dormant eggs could therefore receive and respond to hatching stimuli, and contributed to Daphnia recovery after the flood. Pracoviště Biologické centrum (od r. 2006) Kontakt Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Rok sběru 2012
Počet záznamů: 1