Integrated watershed study: An investigation of the biota in the Emerald Lake system and stream-channel experiments. Final report
Technical Report
·
OSTI ID:5230066
As part of the Integrated Watershed Study in the vicinity of Emerald Lake, Sequoia National Park, investigators conducted baseline monitoring of benthic invertebrates in the inflow streams and the outflow stream. During summer 1986 they carried out a series of acidification experiments in artificial stream channels located in the drainage of the Marble Fork of the Kaweah River. Twelve channels (2.4 m x 20 cm x 20 cm) were stocked with natural substrates, algae and invertebrates. In the treatment channels the pH was reduced to 4.6 and 5.2, using a mixture of nitric and sulfuric acids. Measurements of benthic densities, drift rates and algal densities were made before, during and after each acid treatment of 8 hours duration. Diatom populations declined in the acidified channels, while other periphyton species actually increased with the treatment.
- Research Organization:
- California Univ., Santa Barbara, CA (USA)
- OSTI ID:
- 5230066
- Report Number(s):
- PB-89-225395/XAB
- Country of Publication:
- United States
- Language:
- English
Similar Records
Emerald Lake Watershed study: Introduction and site description
Chemical and biological characteristics of Emerald Lake and the streams in its watershed and the responses of the lake and streams to acidic deposition. Final report
Chemical and biological survey of lakes and streams located in the Emerald Lake watershed, Sequoia National Park. Final report, July 1984-July 1986
Journal Article
·
Mon Jul 01 00:00:00 EDT 1991
· Water Resources Research; (United States)
·
OSTI ID:5715895
Chemical and biological characteristics of Emerald Lake and the streams in its watershed and the responses of the lake and streams to acidic deposition. Final report
Technical Report
·
Mon Mar 13 23:00:00 EST 1989
·
OSTI ID:5192279
Chemical and biological survey of lakes and streams located in the Emerald Lake watershed, Sequoia National Park. Final report, July 1984-July 1986
Technical Report
·
Tue Feb 17 23:00:00 EST 1987
·
OSTI ID:5245726
Related Subjects
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
ACID RAIN
ACIDIFICATION
AIR POLLUTION
ALGAE
ANIMALS
ARTHROPODS
ATMOSPHERIC PRECIPITATIONS
CALIFORNIA
CHROMOPHYCOTA
DENSITY
DEPOSITION
DIATOMS
DIPTERA
DOCUMENT TYPES
FEDERAL REGION IX
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INSECTS
INVERTEBRATES
NITRIC ACID
NORTH AMERICA
PHYSICAL PROPERTIES
PLANTS
POLLUTION
PROGRESS REPORT
RAIN
SUBSTRATES
SULFURIC ACID
USA
WATER POLLUTION
WATERSHEDS
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
ACID RAIN
ACIDIFICATION
AIR POLLUTION
ALGAE
ANIMALS
ARTHROPODS
ATMOSPHERIC PRECIPITATIONS
CALIFORNIA
CHROMOPHYCOTA
DENSITY
DEPOSITION
DIATOMS
DIPTERA
DOCUMENT TYPES
FEDERAL REGION IX
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INSECTS
INVERTEBRATES
NITRIC ACID
NORTH AMERICA
PHYSICAL PROPERTIES
PLANTS
POLLUTION
PROGRESS REPORT
RAIN
SUBSTRATES
SULFURIC ACID
USA
WATER POLLUTION
WATERSHEDS