1981•Limnology and OceanographyOpen access

Embryological induction and predation ecology in Daphnia pulex

Donald A. Krueger, Stanley I. Dodson

Abstract

Results of laboratory experiments suggest that a water‐soluble factor released into the environment by the predacious phantom midge larva Chaoborus americanus (Diptera: Chaoboridae) causes embryos of the waterflea Daphnia pulex Leydig 1860 emend. Richard 1896 (Crustacea: Cladocera) to develop into a form called Daphnia minnehaha Herrick 1884. Chaoborus larvae are unable to eat the D. minnehaha form as readily as the D. pulex form.

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Key concepts: Daphnia pulex, Biology, Cladocera, Daphnia, Branchiopoda, Midge, Larva, Ecology