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Seasonal variation of antifouling activities of marine algae from the Brittany Coast (France)

Lookup NU author(s): Dr Claire Hellio, Dr Jean-Philippe Marechal, Professor Tony Clare


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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.

Publication metadata

Author(s): Hellio C, Marechal J, Véron B, Bremer G, Clare A, Le Gal Y

Publication type: Article

Publication status: Published

Journal: Marine Biotechnology

Year: 2004

Volume: 6

Issue: 1

Pages: 67-82

Print publication date: 01/02/2004

ISSN (print): 1436-2228

ISSN (electronic): 1436-2236

Publisher: Springer


DOI: 10.1007/s10126-003-0020-x

PubMed id: 14612986


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