Environmental stress and assessment program

Research progress is reported in sections entitled: Savannah River Plant (SRP) studies provide general models for thermal research; in vivo studies of thermal stabilities of cattail isozymes reveal interspecific differences; thermal regimes in Par Pond have little effect on micronutrient uptake by cattails; continued tree kill in the SRP swamp may have an adverse impact on the swamp's cooling capabilities; Par Pond provides understanding of complexity of lake ecosystems affected by thermal effluents; temperature affects size, species distribution, and emergence date of dragonfly larvae; the midge subcommunity in Par Pond maintains relative integrity across a multi-faceted environmental gradient; temperature does not alter contribution of predators to community stability; habitat affects enzyme activity levels in natural populations of Gambusia affinis; studies of large-mouth bass in Par Pond system reveal lipid cycles; long-term turtle research provides information on survivorship and longevity; data on SRP watersnakes contribute to understanding of sexual dimorphism in animals; terrestrial drift fences and pitfall traps prove to be an effective technique for quantitative sampling of animal populations; and, Steel Creek targeted for environmental assessment