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O Schmit and G Josens (2004)

Preliminary study of the scars borne by Gammaridae (Amphipoda, Crustacea)


Many gammarid shrimps from the rivers Meuse and Viroin bear scars. A recent invader in the Meuse, Dikerogammarus villosus, is claimed to exhibit a strong predatory behaviour against other Gammaridae. Therefore we tested the hypothesis that scarred Gammaridae should be more numerous in the Meuse where D. villosus is dominant than in a tributary, the Viroin, where it is absent. On the contrary there were significantly more scarred individuals in the Viroin (51\%) than in the Meuse (32\%). The most exposed appendages were the most frequently injured, and multiple scars on a single individual were not distributed randomly. These results are discussed.

invasive species; Dikerogammarus; Echinogammarus; Gammarus
9th Benelux Congress of Zoology, Antwerp, BELGIUM, NOV 08-09, 2002
  • ISSN: 0777-6276

ISSN 2295-0451 (online version)
ISSN 0777-6279 (printed version)
impact factor 2015: 0,87.

Prof. Dr. Isa Schön
Royal Belgian Institute of Natural Sciences
Vautierstraat 29
1000 Brussels, Belgium


Annales de la Société malacologique de Belgique
​Annales de la Société royale malacologique et zoologique de Belgique
Annales de la Société Royale Zoologique de Belgique
Belgian Journal of Zoology