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  • C. van Colen
  • J. Lenoir
  • A. de Backer
  • B. Vanelslander
  • M. Vincx
  • S. Degraer
  • T. Ysebaert
The role of multi-species benthic diatom films (BDF) in the settlement of late pediveliger larvae of the bivalve Macoma balthica was investigated in still-water bioassays and multiple choice flume experiments. Axenic diatom cultures that were isolated from a tidal mudflat inhabited by M. balthica were selected to develop BDF sediment treatments characterized by a different community structure, biomass, and amount of extracellular polymeric substances (EPS). Control sediments had no added diatoms. Although all larvae settled and initiated burrowing within the first minute after their addition in still water, regardless of treatment, only 48–52% had completely penetrated the high diatom biomass treatments after 5 min, while on average 80 and 69% of the larvae had settled and burrowed into the control sediments and BDF with a low diatom biomass (
Original languageEnglish
Pages (from-to)2161-2171
JournalMarine Biology
Issue number10
StatePublished - 2009

ID: 124318