Journal of Chemical Ecology

, Volume 16, Issue 7, pp 2263–2275 | Cite as

Source and nature of disturbance-chemical system in crayfish

  • Brian A. Hazlett


The responses of crayfish to water from aquaria containing either undisturbed or disturbed animals were observed. The crayfishOrconectes propinquus andO. rusticus showed no response to disturbed-conspecific water. Individuals ofO. virilis respond not only to disturbed crayfish but to other taxa (the leechMacrobdella decora, the darterEtheostoma exile, and rock bassAmbloplites rupestris), but not to the painted turtleChrsymes picta. Additional tests indicated partial responses byO. virilis to ammonium and to a chemical or chemicals released from the green gland of crayfish. Ablation experiments indicated the antennules as the site of reception of the chemicals. Additional behavioral tests indicated that detection of the disturbance chemical(s) results in the crayfish showing low-level alert for more than 15 min, once an initial priming period has passed.

Key words

Disturbance semiochemical communication crayfish Orconectes propinquus O. rusticus O. virilis cross-taxa effects pheromone ammonium antennules green gland 


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Copyright information

© Plenum Publishing Corporation 1990

Authors and Affiliations

  • Brian A. Hazlett
    • 1
    • 2
  1. 1.Department of BiologyUniversity of MichiganAnn Arbor
  2. 2.University of Michigan Biological StationPellston

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