... collaboration of multidisciplinary researchers under the sponsorship of Universitas 21 met at the University of Virginia recently to discuss these chemicals emerging in aquatic ecosystems.
... , although the study was focused on algae preserved in lake sediments, changes to other parts of the aquatic ecosystem are also likely (for example algal blooms and deep-water oxygen levels).
"The ...
... goal of nutrient reduction programs is to reestablish balanced aquatic ecosystems, research tells us to focus pollution reductions efforts on both nitrogen and phosphorus," said co- ...
... . In addition, ponds were found to take up carbon at a higher rate than larger lakes.
"Aquatic ecosystems play a disproportionately large role in the global carbon budget," Downing said. "Despite ...
... increase surface erosion.
Forest chemicals, including those used to fight fire, can adversely affect aquatic ecosystems, especially if they are applied directly to water bodies or wet soil.
One ...
... habitats--factors that can, in turn, alter the structure and function of terrestrial and aquatic ecosystems and the assemblages of organisms.
Similarly, "climate change and its expected increase in ...
... , streams, lakes, and reservoirs. The meeting, titled "Fate and Bioavailability of Mercury in Aquatic Ecosystem and Effects on Human Exposure," also included experts on mercury in marine systems. All ...
... in the environment once it is released, even if concentrations rise to levels that are toxic to aquatic ecosystems."
The U.S. federal government has invested only a small percentage of its overall ...
... drainage. "Human populations have greatly expanded in many of these watersheds, compounding negative impacts on aquatic ecosystems," noted Howard Jelks, a USGS researcher and the senior author of ...
... the massive worldwide contamination by this chemical due its to disposal in landfills and the dumping into aquatic ecosystems of myriad other products containing BPA, which Canada has already declared ...
... nitrogen from air pollution causes detrimental chemical and biological effects to terrestrial and aquatic ecosystems. Other harmful effects include elevated nitrate concentrations in streams and ...
Declining levels of calcium in North American lakes, caused in part by acid rain, are having a lasting impact on the food web of these aquatic ecosystems, scientists said Thursday.
... tissue – such as the pH of the water and the size and species of the fish – to identify those aquatic ecosystems that are likely to have fish with high mercury levels. "We want to be predictive," ...
... points out "When this is added to the effect on water demand and waste disposal on aquatic ecosystems, then African cities can have an ecological footprint much larger than their actual extent."
But ...
... the world's most important water supplies for urban use and agriculture, and is also one of the most contaminated aquatic ecosystems.
The ominous decline in estuary populations of striped bass, delta ...
