, Volume 325, Issue 2, pp 151–155

Alarm reaction in bleak (Alburnus alburnus (L.), Cyprinidae) in response to chemical stimuli from injured conspecifics


  • Anna Jachner
    • Department of HydrobiologyUniversity of Warsaw

DOI: 10.1007/BF00028275

Cite this article as:
Jachner, A. Hydrobiologia (1996) 325: 151. doi:10.1007/BF00028275


The response of bleak (Alburnus alburnus (L.)) to alarm substance (from skin extract of conspecifics) was quantified, using a video camera, in laboratory experiments across two light and one dark periods (18 hrs). In the light alarm substance induced hiding in refuges (vegetation) and formation of aggregations. There was no such reaction during darkness or during a second light period.

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© Kluwer Academic Publishers 1996