Preliminary study of the scars borne by Gammaridae (Amphipoda, Crustacea)
Schmit, O.; Josens, G. (2004). Preliminary study of the scars borne by Gammaridae (Amphipoda, Crustacea). Belg. J. Zool. 134(2/1): 75-78
In: Belgian Journal of Zoology. Koninklijke Belgische Vereniging voor Dierkunde = Société royale zoologique de Belgique: Gent. ISSN 0777-6276; e-ISSN 2295-0451, meer
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| Beschikbaar in | Auteurs |
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Documenttype: Congresbijdrage
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| Trefwoorden |
Gammaridae Latreille, 1802 [WoRMS]
Zoet water |
| Abstract |
Many garnmarid 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 wetested 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. |
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