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

Claire Hellio, J. Marechal, B. Veron, Graham Bremer, A. Clare, Y. Le Gal

Research output: Contribution to journalArticlepeer-review

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.
Original languageEnglish
Pages (from-to)67-82
Number of pages16
JournalMarine Biotechnology
Volume6
Issue number1
DOIs
Publication statusPublished - Jan 2004

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