Accession Number:

AD0787602

Title:

The Effects of Pollutants on Marine Microbial Processes: A Field Study.

Descriptive Note:

Technical rept.,

Corporate Author:

HARVARD UNIV CAMBRIDGE MASS DIV OF ENGINEERING AND APPLIED PHYSICS

Personal Author(s):

Report Date:

1974-09-01

Pagination or Media Count:

44.0

Abstract:

Previous studies under the contract have shown that low concentrations of chemical pollutants adversely affect microbial processes in seawater. In this technical report, results are described of a field study of this phenomenon. Red Sea corals were used as a model. The author shows that low concentration of crude oil, copper and available organic matter, which were insufficient to kill the corals directly, upset the microbiological balance on the coral surface. The pollutants stimulated excessive mucus production by the coral. Bacteria were attracted to the mucus and grew on it. Three factors associated with bacteria growth were responsible for the death of the coral colonies 1 Oxygen depletion 2 chemical toxins and 3 bacterial predators, particularly Beggiotoa. Modified author abstract

Subject Categories:

  • Biological Oceanography
  • Water Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE