When Scott Pruitt takes the reins of the Environmental Protection Agency, we can expect him to dismantle federal environmental protections. Among the protections that he would like to roll back is the recent rule defining the "waters of the United States" under the Clean Water Act. Repealing this rule would cut the heart out of the Clean Water Act, effectively handing our waters back to big polluters. This should be resisted.
Whoever named the "temperate zone" must have had a sense of humor. I'm writing this during a week of humid, 90-degree days, and just a few months ago it was 13 below, a stiff north wind providing the icing on that frozen cake. Since then, we've had rain, snow, sleet, warm spells, cold snaps and thunderstorms.
Gwynns Falls in Baltimore has a drug problem. Researchers found amphetamines, opioids and morphine in the water, and that kind of pollution is having an impact on the aquatic food chain. WBAL-TV reports.
We are working in collaboration with a consortium of governmental and non-profit agencies in southeastern Québec to try to understand the effects of water level management on littoral food webs in this region.
We are working with the Adirondack chapter of The Nature Conservancy to build a population model of an Adirondack strain, heritage lake trout population and test alternative management strategies for maximizing the fishery's conservation and value.
Fisheries are classic examples of tightly coupled natural-human systems, and have high cultural and economic value in North America and around the world. They are thus useful model systems for testing and developing social-ecological theory, and important venues for real-world application of such theory.
Organic matter produced by terrestrial plants enters lakes via streams, groundwater, and surface deposition. These inputs strongly structure lake ecosystems, altering heat and light budgets, fueling carbon cycles, and becoming incorporated into the tissues of aquatic organisms like invertebrates and fishes.
Increasing salt in our streams has been a concern at the Cary Institute for many years. Even in the relatively undeveloped watershed of the East Branch of Wappinger Creek, the salt levels have increased since 1985 when sampling began.
Dr. Weathers is co-Chair of the Global Lake Ecological Observatory Network (GLEON), a grassroots research network that conducts innovative science by sharing and interpreting high resolution sensor data to understand, predict and communicate the role and response of lakes in a changing global environment.
Carbon released from terrestrial ecosystems is an important source of organic matter in most streams, lakes and rivers. In the Hudson River there has been a doubling in concentration of dissolved organic carbon over the past 15 years.
Submersed aquatic vegetation (SAV) is an important habitat in the Hudson River. We have investigated a wide range of functions in SAV beds including maintenance of high dissolved oxygen, effects on suspended sediment, and habitat value.
Beds of water celery (Vallisneria americana) and other plants are widespread in the Hudson River, and play several important ecological functions. These beds contain a diverse invertebrate community, which may serve as a major source of food to the river's fish.
We have carried out a diversity of small and mesocosm-scale experiments, in conjunction with regionally distributed field sampling, to assess when the composition of stream benthic bacterial communities corresponds with differences in stream metabolic activities.
For three decades, our scientists have been researching the Hudson River ecosystem– from the way shoreline development impacts water quality to how invasive species influence resident plants and animals. As a result, the Hudson is the most scientifically scrutinized river in the world.