Survival of brook trout embryos in three episodically acidified streams
Technical Report
·
OSTI ID:5607481
The authors evaluated brook trout Salvelinus fontinalis in three streams that undergo episodic acidification during critical periods of embryo development for survival of embryos from egg deposition to preemergence in natural redds and survival of sac fry in toxicity tests done in situ. Twenty-five natural redds were used for comparisons among streams. Median survival to preemergence (range, 16-68%) was different among streams and was inversely related to stream concentration of inorganic monomeric aluminum. Survival to preemergence was not related to intragravel dissolved oxygen concentration, gravel quality, or depth or velocity of stream water at redd sites.
- Research Organization:
- Pennsylvania State Univ., University Park, PA (United States). School of Forest Resources
- OSTI ID:
- 5607481
- Report Number(s):
- PB-94-117546/XAB; CNN: EPA-R-814566-01-2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACIDIFICATION
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
DATA
EVALUATED DATA
FISHES
INFORMATION
NUMERICAL DATA
VERTEBRATES
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACIDIFICATION
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL EFFECTS
DATA
EVALUATED DATA
FISHES
INFORMATION
NUMERICAL DATA
VERTEBRATES