Analysis of pollutant enhanced bacterial-blue-green algal interrelationships potentiating surface water contamination by noxious blue-green algal blooms. Completion report

Technical Report · Wed Feb 01 00:00:00 EST 1984

OSTI ID:6483545

Bedell, G W

Sulfate-reducing bacteria from the genus Desulfovibro can stimulate the blue-green alga (Cyanobacterium) Anabaena variabilis (Strain 6411) into increasing its dry weight biomass production by more than 200 percent over that of the control as the total phosphate in the medium approaches zero. Results suggest that methods which utilize total nitrogen to phosphorus ratios in waters as predictors of blue-green algal 'blooms' may be unreliable when the waters are very low in phosphorus yet remain high in sulfate with conditions favorable for sulfate-reducing bacterial growth in benthic sediments. Otherwise, if the phosphate levels alone in the aqueous systems are reduced below threshold levels under these conditions, the magnitude of the blue-green algal blooms may be increased substantially.

• Research Organization: Nevada Univ., Reno (USA). Dept. of Biology
• OSTI ID: 6483545
• Report Number(s): PB-84-202498
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
CYANOBACTERIA
PRODUCTIVITY
BIOMASS
CORRELATIONS
DESULFOVIBRIO
GOVERNMENT POLICIES
PHOSPHORUS
SURFACE WATERS
WATER POLLUTION
BACTERIA
ELEMENTS
ENERGY SOURCES
MICROORGANISMS
NONMETALS
POLLUTION
RENEWABLE ENERGY SOURCES
SULFATE-REDUCING BACTERIA
520100* - Environment
Aquatic- Basic Studies- (-1989)