Geographic analysis of thermal equilibria: A bioenergetic model for predicting thermal response of aquatic insect communities. Final report, February 1, 1985--July 31, 1989: Volume 2
The thermal regime immediately downstream from bottom release reservoirs is often characterized by reduced diel and seasonal (winter warm/summer cool) conditions. These unusual thermal patterns have often been implicated as a primary factor underlying observed downstream changes in the species composition of aquatic macroinvertebrate communities. The potential mechanisms for selective elimination of benthic species by unusual thermal regimes has been reviewed. Although the effects of temperature on the rate and magnitude of larval growth and development has been included in the list of potential mechanisms, only recently have field studies below dams focused on this interrelationship. This study investigates the overall community structure as well as the seasonal pattern of larval growth and development for several univoltine species of insects in the Delaware River below or near the hypolimnetic discharge of the Cannonsville and Pepeacton dams. These dams, which are located on the West and East branches of the Delaware River, respectively, produce a thermal gradient extending about 70 km downstream.
- Research Organization:
- Academy of Natural Sciences, Avondale, PA (United States). Stroud Water Research Center
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-79EV10259
- OSTI ID:
- 10109475
- Report Number(s):
- DOE/EV/10259-T4-Vol.2; ON: DE92004942
- Resource Relation:
- Other Information: PBD: Dec 1991
- Country of Publication:
- United States
- Language:
- English
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Geographic analysis of thermal equilibria: A bioenergetic model for predicting thermal response of aquatic insect communities: Volume 2: Technical progress report, February 1, 1985-January 31, 1988
Geographic analysis of thermal equilibria: a bioenergetic model for predicting thermal response of aquatic insect communities. Technical progress report, January 1, 1983-December 31, 1983. Proposed research program, January 1, 1984-December 31, 1984
Related Subjects
13 HYDRO ENERGY
54 ENVIRONMENTAL SCIENCES
RESERVOIR TEMPERATURE
DAILY VARIATIONS
ENVIRONMENTAL EFFECTS
POPULATION DYNAMICS
BIOLOGICAL MODELS
FORECASTING
INSECTS
SURFACE WATERS
MODIFICATIONS
PROGRESS REPORT
WATER RESERVOIRS
SPILLWAY
LARVAE
DAMS
ANIMAL GROWTH
LIMNOLOGY
DELAWARE RIVER
POWER PLANTS
550100
130600
540340
BEHAVIORAL BIOLOGY
ENVIRONMENTAL ASPECTS
THERMAL EFFLUENTS MONITORING AND TRANSPORT