Marine Biotechnology

, Volume 6, Issue 1, pp 67–82

Seasonal Variation of Antifouling Activities of Marine Algae from the Brittany Coast (France)

  • Claire Hellio
  • Jean-Philippe Marechal
  • Benoît Véron
  • Graham Bremer
  • Anthony S. Clare
  • Yves Le Gal
Article

DOI: 10.1007/s10126-003-0020-x

Cite this article as:
Hellio, C., Marechal, JP., Véron, B. et al. Mar. Biotechnol. (2004) 6: 67. doi:10.1007/s10126-003-0020-x

Abstract

The antifouling activity of extracts (aqueous, ethanol, and dichloromethane) of 9 marine macroalgae against bacteria, fungi, diatoms, macroalgal spores, mussel phenoloxidase activity, and barnacle cypris larvae has been investigated in relation to season in bimonthly samples from the Bay of Concarneau (France). Of the extracts tested, 48.2% were active against at least one of the fouling organisms, and of these extracts, 31.2% were seasonally active with a peak of activity in summer corresponding to maximal values for water temperature, light intensity, and fouling pressure, and 17% were active throughout the year. This seasonal activity may be adaptive as it coincides with maximal fouling pressure in the Bay of Concarneau. Dichloromethane extracts of Rhodophyceae were the most active in the antifouling assays.

Keywords

antifouling settlement bacteria barnacle diatoms fungi 

Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • Claire Hellio
    • 1
  • Jean-Philippe Marechal
    • 1
  • Benoît Véron
    • 2
  • Graham Bremer
    • 3
  • Anthony S. Clare
    • 1
  • Yves Le Gal
    • 4
  1. 1.School of Marine Science & Technology, Ridley BuildingUniversity of Newcastle, Newcastle upon Tyne NE1 7RUUK
  2. 2.Laboratoire de Biologie et Biotechnologies MarinesUniversité de Caen Basse-Normandie, BP 5186, 14032 Caen cedexFrance
  3. 3.School of Biological ScienceUniversity of Portsmouth, King Henry Building, Portsmouth POI 2DYUK
  4. 4.Station de Biologie Marine de Muséum National d’Histoire Naturelle, FRE 2125, BP 225, F29182 ConcarneauFrance

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