Nutrient cycling and the growth of benthic algae in experimentally acidified Little Rock Lake, WI
Thesis/Dissertation
·
OSTI ID:7078355
Changes in nutrient-cycling and the growth of benthic algae resulting from decreased pH in low alkalinity lake systems were analyzed by laboratory, mesocosm, and whole-lake studies on Little Rock Lake, Wisconsin. Nutrients, transparency, an algal growth in the experimentally acidified basin were compared with conditions in an untreated reference basin. During the first summer following acidification (1985), accumulation rates of attached algae were significantly higher in the acidified basin than in the reference basin during June-August, but not in September. Color and winter silica values were significantly lower in the acidified basin relative to the reference basin following treatment. In addition, the lack of a fall decline in SiO/sub 2/ in the north basin in 1986 may signal pH-related changes in siliceous algal communities.
- Research Organization:
- Minnesota Univ., Minneapolis (USA)
- OSTI ID:
- 7078355
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACIDIFICATION
ALGAE
AQUATIC ORGANISMS
BENTHOS
CHALCOGENIDES
FEDERAL REGION V
GROWTH
LAKES
MINERAL CYCLING
MINERALS
NORTH AMERICA
NUTRIENTS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PH VALUE
PLANTS
SEASONAL VARIATIONS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SURFACE WATERS
USA
VARIATIONS
WISCONSIN
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACIDIFICATION
ALGAE
AQUATIC ORGANISMS
BENTHOS
CHALCOGENIDES
FEDERAL REGION V
GROWTH
LAKES
MINERAL CYCLING
MINERALS
NORTH AMERICA
NUTRIENTS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PH VALUE
PLANTS
SEASONAL VARIATIONS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SURFACE WATERS
USA
VARIATIONS
WISCONSIN