Accession Number : AD0747637

Title :   The Role of Microorganisms in Marine Fouling.

Descriptive Note : Interim technical rept.,

Corporate Author : HARVARD UNIV CAMBRIDGE MASS LAB OF APPLIED MICROBIOLOGY

Personal Author(s) : Mitchell,Ralph ; Young,Lily

Report Date : JUL 1972

Pagination or Media Count : 27

Abstract : A complex community of bacteria, diatoms, protozoa and microalgae is considered collectively as the primary film which develop on non-toxic surfaces immersed in seawater. There appears to be a strong correlation between primary film formation and attachment of animals. Studies conducted in the laboratory on the attachment of oyster larvae (Crassostrea virginica) to surfaces with a film indicate that differences in the microbiological film are detectable by the larvae. Oyster larvae were observed to display three characteristic chemotactic patterns toward a variety of organic compounds and microorganisms. Studies conducted in the field suggest that the number of animals which attach to a surface is proportional to the number of bacteria composing the primary film. Control of fouling is discussed in terms of biological principles. (Author)

Descriptors :   (*FOULING, *MARINE BIOLOGY), (*BACTERIA, FOULING), (*LARVAE, FOULING), FILMS, SURFACES, BACTERIA, ALGAE, PROTOZOA, PELECYPODA

Subject Categories : Microbiology
      Biological Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE