Microbial Ecology

, Volume 23, Issue 1, pp 97–106 | Cite as

Inhibition of larval barnacle attachment to bacterial films: An investigation of physical properties

  • J. S. Maki
  • D. Rittschof
  • R. Mitchell


The effects of films of two strains of a marine bacterium, Deleya marina (ATCC 25374 and 27129) on the attachment response of cypris larvae of the balanomorph barnacle, Balanus amphitrite, were examined in the laboratory. Tests showed that the cell-surface hydrophobicities of the two bacteria in suspension were different. In contrast, films derived from these cells were both highly wettable (i.e., displayed high surface free energy). Assays (22 hours) compared permanent attachment of larval barnacles to films derived from exponential and stationary phase cells for both bacteria. These films either had no effect or inhibited attachment of both 0-day- and 4-day-old cypris larvae when compared with unfilmed controls. Our data indicate that inhibition of larval barnacle attachment by films of the two bacteria is the result of factors other than surface free energy. Production of chemical barnacle settlement inhibitors by the bacteria is hypothesized.


Free Energy Stationary Phase High Surface Nature Conservation Surface Free Energy 
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Copyright information

© Springer-Verlag New York Inc. 1992

Authors and Affiliations

  • J. S. Maki
    • 1
  • D. Rittschof
    • 2
  • R. Mitchell
    • 1
  1. 1.Laboratory of Microbial Ecology, Division of Applied SciencesHarvard UniversityCambridgeUSA
  2. 2.Zoology Department and Marine LaboratoryDuke UniversityPivers Island, BeaufortUSA

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