Ecology, Population Studies & History

Hydrobiologia

, Volume 145, Issue 1, pp 309-314

First online:

A note on the hatching and viability ofCeriodaphnia ephippia collected from lake sediment

  • Christian MoritzAffiliated withAbteilung für Limnologie, Institut für Zoologie

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Abstract

Ephippia ofCeriodaphnia pulchella Sars were collected at 2 sites from successive sediment layers.

Hatching observed in the laboratory gave information about the duration of their viability. Conclusions about the hatching situation in the lake were drawn from the ratio of intact to total ephippia at various lake depths. The results are discussed.

Keywords

ephippia Ceriodaphnia pulchella hatching viability