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Hydrobiologia

, Volume 563, Issue 1, pp 515–520 | Cite as

pH-related Hatching Success of Triops cancriformis (Crustacea: Branchiopoda: Notostraca)

  • Iris Maria Schönbrunner
  • Erich Eder
Short Research Note

Abstract

Six different pH ranges were tested for the hatching rate of Triops cancriformis cysts. Cumulative hatching numbers approach to approximately 50% of cysts. The highest hatching rates, co-occurring with the shortest hatching times, were recorded in the neutral range. No hatching took place at pH values 9 and above. This corresponds with the most frequent habitats of this species, snowmelt pools of river flood plains as well as aestival pools caused by heavy rainfalls. Occurrences in sodic alkaline pans can be explained by relatively low pH values at the time of inundation.

Keywords

Triops alkalinity ecology Cyst diapause Austria life cycle resting eggs hatching 

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Copyright information

© Springer 2006

Authors and Affiliations

  1. 1.BG & BRG 12WienAustria
  2. 2.Department of Evolutionary Biology, Faculty of Life SciencesUniversity of ViennaWienAustria

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