Feeding on micro-algae in the invasive Ponto-Caspian amphipod Dikerogammarus villosus (Sowinsky, 1894)

D. Platvoet, J.T.A. Dick, N. Konijnendijk, G. Van Der Velde

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)

Abstract

Feeding on micro-algae is shown in the invasive Ponto-Caspian amphipod Dikerogammarus villosus. Compared with controls, males, females and juveniles of this species significantly reduced the concentration in suspension of unicellular micro-algae. Juveniles had higher concentrations of algae in the cardiac gut than adults. The presence of these algae in the mid- and hindgut was also recorded. This feeding behaviour was filmed and the mechanisms involved are described and discussed. We comment on the use of the Functional Feeding Group (FFG) concept to classify feeding in amphipods. The role of being a feeding-generalist in aiding the invasion process is also discussed.
Original languageEnglish
Pages (from-to)237-245
Number of pages9
JournalAquatic Ecology
Volume40
Issue number2
DOIs
Publication statusPublished - 25 Sep 2006

ASJC Scopus subject areas

  • Aquatic Science

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