FLEXIBLE OMNIVORY IN DIKEROGAMMARUS VILLOSUS (SOWINSKY, 1894) (AMPHIPODA) - AMPHIPOD PILOT SPECIES PROJECT (AMPIS) REPORT 5

D. Platvoet, G. Van Der Velde, J.T.A. Dick, S.Q. Li

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

Feeding in Dikerogammarus villosus (Sowinsky, 1894) males was observed in the field and recorded on video in the laboratory. The following feeding modes were recognized: detritus feeding, grazing, particle feeding, coprophagy, predation on benthic and free swimming invertebrates, predation on fish eggs and larvae, as well as feeding on byssus threads of the zebra mussel, Dreissena polymorpha (Pallas, 1771). The feeding methods are described and illustrated with screenshots of video recordings. The very flexible feeding modes of D. villosus, which make diet switches possible, form a trait that must be an important factor in the invasion success of this Ponto-Caspian gammaridean species, and may thus explain for a great deal its high ecosystem impact.
Original languageEnglish
Pages (from-to)703-720
Number of pages18
JournalCrustaceana
Volume82
Issue number6
DOIs
Publication statusPublished - 01 Jun 2009

ASJC Scopus subject areas

  • Aquatic Science

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