Accession Number : AD0867080

Title :   Adhesive Hydrocolloids Secreted by Microscopic Marine Algae.

Descriptive Note : Final rept. Jan 68-Jun 69,

Corporate Author : NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA

Personal Author(s) : Vind, Harold P.

Report Date : FEB 1970

Pagination or Media Count : 50

Abstract : The adhesion of microscopic marine algae to the walls of small containers of sea water has been studied. Infrared spectra of extracts and films of algae were analyzed and compared to spectra of known hydrocolloids. The studies indicate that the gels holding algae together in films are composed primarily of polysaccharide polymers similar to the seaweed hydrocolloids, carrageenan and alginic acid, but that the adhering layer of substance joining algae to foreign surfaces is mostly protein. Like all proteins in their native states, it is also a hydrocolloidal gel. Recognition that adhesive systems of marine fouling organisms are hydrocolloidal gels tells a great deal about their nature and delineates the most logical areas in which to undertake research on methods to prevent attachment of fouling organisms. (Author)

Descriptors :   (*FOULING, ALGAE), (*ALGAE, ADHESION), (*ADHESIVES, ALGAE), SECRETION, GELS, PROTEINS, POLYMERS, POLYSACCHARIDES, ALGINIC ACID, MARINE BIOLOGY, COLLOIDS, INFRARED SPECTRA.

Subject Categories : Biological Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE