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Evolution journalière de la dérive des exuvies nymphales de chironomidae (diptera) dans une rivière salmonicole (le Samson, Belgique)
Evrard, M. (1994). Evolution journalière de la dérive des exuvies nymphales de chironomidae (diptera) dans une rivière salmonicole (le Samson, Belgique). Belg. J. Zool. 124(2): 115-126
In: Belgian Journal of Zoology. Koninklijke Belgische Vereniging voor Dierkunde = Société royale zoologique de Belgique: Gent. ISSN 0777-6276, more
Peer reviewed article  

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Keyword
    Fresh water

Author  Top 
  • Evrard, M.

Abstract
    Pupal exuviae of chironomids were collected in the river Samson by means of a drift net, over a period of 24 hours in September 1993. 50 species were identified, 14 of which are new to Belgium. The incidence of the exuviae of different species changed during the course of the 24 hours : exuviae of 33 species were caught at sunset, 14 at the beginning of the afternoon. The diel periodicity of emergence of 9 abundant species was studied by collecting their pupal exuviae.

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