Survival of Brook Trout (Salvelinus fontinalis) Embryos and Fry in Streams of Different Acid Sensitivity in Shenandoah NP
Macavoy SE and Bulger AJ. 1995. Survival of Brook Trout (Salvelinus fontinalis) Embryos and Fry in Streams of Different Acid Sensitivity in Shenandoah NP. Water, Air, & Soil Pollution. 85:445-450
The researchers completed four 1-to-3 month-long field bioassays in three streams differing in acid neutralizing capacity (ANC) at Shenandoah National Park, using a total of 18,000 hatchery brook trout eyed-eggs through fry. In three of the four bioassays, embryos/fry showed poorer survivorship in the low-ANC stream, compared to the high-ANC stream. Substantial mortalities occurred under different hydrological conditions, including steady rain plus significant rain events (fall 1992), low rainfall followed by a significant rain event (spring 1993), and steady light rain and snowmelt with no large rain events (spring 1994). In a fourth bioassay (fall 1993), poor survivorship occurred in all three streams due to drought conditions.
- Type
- Journal Article
- Authors
- Macavoy, S; Bulger, A
- Units
- ARD , SHEN
- Keywords
- AIRBIB, ARD_Park-Air-Info_Collection, Deposition, Fish, Nitrogen, Sulfate, Sulfur