Experiments were conducted to determine the effects of feeding
sulfamethazine to chinook salmon (Oncorhyncus tshawytscha, Walbaum)
as it is used in the Oregon Moist Pellet diet (OMP) for control of
bacterial infections and to compare this drug with sulfisoxazole and
sulfadimethoxine. These drugs were compared in the following manner:
toxicity,...
Analyses of long-term records at 35 headwater basins in the United States and Canada indicate that climate change effects on streamflow are not as clear as might be expected, perhaps because of ecosystem processes and human influences. Evapotranspiration was higher than was predicted by temperature in water-surplus ecosystems and lower...