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Iron-encrusted diatoms and bacteria epibiotic on Hydrobia ulvae (Gastropoda : Prosobranchia)
Gillan, D. C.; Cadee, G.C. (2000). Iron-encrusted diatoms and bacteria epibiotic on Hydrobia ulvae (Gastropoda : Prosobranchia). J. Sea Res. 43(1): 83-91. dx.doi.org/10.1016/S1385-1101(99)00041-6
In: Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg. ISSN 1385-1101; e-ISSN 1873-1414, meer
Peer reviewed article  

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Trefwoorden
    Bacillariophyceae [WoRMS]; Bacteria [WoRMS]; Hydrobia W. Hartmann, 1821 [WoRMS]; Marien
Author keywords
    Hydrobia; epibiosis; biofilm; diatom; filamentous bacteria; iron mineral

Auteurs  Top 
  • Gillan, D. C.
  • Cadee, G.C.

Abstract
    Rust-coloured shells of the gastropod Hydrobia ulvae collected in the Wadden Sea near Texel and in the Jade Busen were analysed under the scanning electron microscope. Most of the shells were found to be covered with a microbial community encrusted with an iron-rich mineral containing traces of Mn, Mg, Ca and Si (EDAX analysis). The community formed a biofilm including two morphotypes of diatoms identified as Cocconeis placentula and Achnanthes lemmermanni, two morphotypes of slender filamentous bacteria resembling Leucothrix and Flexibacter, aggregates of coccoid cells and large trichomes resembling members of the cyanobacterial orders Pleurocapsales and Stigonematales, respectively. The must frequent microorganisms of the biofilm were diatoms and filamentous bacteria.

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