Influence of substratum surface tension on biofouling of artificial substrata in Kiel Bay (Western Baltic):In situstudies.

Becker, Klaus and Wahl, Martin (1991) Influence of substratum surface tension on biofouling of artificial substrata in Kiel Bay (Western Baltic):In situstudies. Biofouling, 4 (4). pp. 275-291. DOI 10.1080/08927019109378218.

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Abstract

The role of substratum surface tension on the colonization process (fouling) on artificial substrata was investigated in Kiel Bay (Western Baltic). The density of organisms from the major groups (bacteria, microalgae, protozoa, macroorganisms) was monitored on test panels after several exposure intervals in two experimental series. The results showed that substrata with a surface free energy of 24 mN/m were initially less densely colonized by representatives of the different fouling groups. The most hydrophobic substrata and those between 31–43 mN/m were heavily colonzied but there was a slight decrease in density towards the most hydrophilic material (glass). After an immersion time of 64 d these differences were not apparent for bacteria, microalgae or protozoa. These results correspond with thermodynamic predictions, which propose minimum bioadhesion on substrata with critical surface tensions between 20–25 mN/m in seawater. In addition, factors other than the surface tension may be important in marine fouling.

Document Type: Article
Keywords: Fouling sequence, surface tension, adhesion, biofilm, substratum, colonization
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1080/08927019109378218
ISSN: 0892-7014
Date Deposited: 23 Jan 2014 13:39
Last Modified: 23 Jan 2014 13:39
URI: http://oceanrep.geomar.de/id/eprint/23190

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