Ammonia effects on microinvertebrates and fish in outdoor experimental streams

Technical Report · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6968632

Hermanutz, R O; Hedtke, S F; Arthur, J W; Andrew, R W; Allen, K N

Laboratory data on ammonia effects, the US EPA national-water-quality criteria for ammonia, and ammonia site-specific criteria were evaluated in four outdoor experimental streams (one control and three treatment streams) over a 76-week period. Calculated un-ionized ammonia concentrations varied daily and seasonally according to pH and temperature changes. Populations of four major microinvertebrate taxonomic groups (cladocerans, copepods, rotifers and protozoans) were monitored during a 4-week period early in the study, and six fish species (fathead minnows, bluegills, channel catfish, white suckers, walleyes, and rainbow trout) were tested for various time intervals, from 4 to 26 weeks, throughout the 76-week study period.

• Research Organization: Environmental Protection Agency, Monticello, MN (USA). Environmental Research Lab.
• OSTI ID: 6968632
• Report Number(s): PB-88-185160/XAB; EPA-600/J-87/291
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AMMONIA
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
ENVIRONMENTAL IMPACTS
ENVIRONMENTAL QUALITY
FISHES
HYDRIDES
HYDROGEN COMPOUNDS
INVERTEBRATES
MICROORGANISMS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
PROTOZOA
SAMPLING
TROUT
VERTEBRATES
WATER QUALITY