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The influence of epilithic microbial films on the settlement of Semibalanus balanoides cyprids - a comparison between laboratory and field experiments
Thompson, R.C.; Norton, T.A.; Hawkins, S.J. (1998). The influence of epilithic microbial films on the settlement of Semibalanus balanoides cyprids - a comparison between laboratory and field experiments, in: Baden, S. et al. (Ed.) Recruitment, Colonization, and Physical-Chemical Forcing in Marine Biological Systems: Proceedings of the 32nd European Marine Biology Symposium, held in Lysekil, Sweden, 16-22 August 1997. Developments in Hydrobiology, 132: pp. 203-216
In: Baden, S. et al. (Ed.) (1998). Recruitment, Colonization, and Physical-Chemical Forcing in Marine Biological Systems: Proceedings of the 32nd European Marine Biology Symposium, held in Lysekil, Sweden, 16-22 August 1997. Developments in Hydrobiology, 132. Hydrobiologia, 375/376. 380 pp., more
In: Dumont, H.J. (Ed.) Developments in Hydrobiology. Kluwer Academic/Springer: The Hague; London; Boston; Dordrecht. ISSN 0167-8418, more

Also published as
  • Thompson, R.C.; Norton, T.A.; Hawkins, S.J. (1998). The influence of epilithic microbial films on the settlement of Semibalanus balanoides cyprids - a comparison between laboratory and field experiments. Hydrobiologia 375-376: 203-216, more

Available in Authors 
    VLIZ: Proceedings [98525]
Document type: Conference paper

Keywords
    Colonization; Crustacean larvae; Fouling organisms; Larval settlement; Recruitment; Rocky shores; Surface films; Semibalanus balanoides (Linnaeus, 1767) [WoRMS]; Marine

Authors  Top 
  • Thompson, R.C.
  • Norton, T.A., more
  • Hawkins, S.J., more

Abstract
    Barnacle cypris larvae show considerable exploratory behaviour prior to habitat selection. The influence of natural epilithic microbial fouling organisms on the settlement of Semibalanus balanoides cyprids (Crustacea: Cirripedia) was examined using laboratory and field based investigations. In choice chambers, cues from microbial films were important; cyprids preferred surfaces with a mature microbial film to either unfilmed surfaces or those with a developing film. Cyprids also discriminated between filmed rocks from different tidal heights, preferentially selecting those from the mid-shore which is their usual zone. Filmed surfaces which had previously been colonised by barnacles were selected in preference to unfilmed surfaces, but the presence of an adult barnacle did not enhance settlement on either filmed or unfilmed surfaces. However, laboratory experiments were not consistent with settlement in the field which was predominantly influenced by the proximity of conspecifics and by traces of previous barnacle colonisation. These factors increased settlement, and seemed to over-rule cues from microbiota within the film. Difficulties in the application of laboratory based studies to settlement in the natural environment are discussed.

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