Ecosystem Health
Ecosystem Health
Ecological assessments are a central focus of multidisciplinary projects and programs managed by the NYWSC and managed in cooperation with the water and soil chemistry laboratory as well as other Federal, State, county, and city agencies, academia, and nongovernmental organizations in New York and nationwide. The NYWSC studies the condition of aquatic communities to assess the effects of various manmade and natural stressors and of resource management practices on the aquatic ecosystems and environments in the State and nationwide and in cooperation with a wide array of partners and monitors climate change indicators to identify trends and data gaps for indicators of climate and habitat change. Specific studies include the effects of forest harvesting on the health of ecosystems at headwaters, the influence of remediation of watersheds on ecosystem health, and the interactions between urban landscapes and ecosystem health.
Filter Total Items: 95
Developing and Implementing Predictive Models for Estimating Recreational Water Quality at Great Lakes Beaches
The Great Lakes Restoration initiative (GLRI) template #77 (Beach Recreation Water Quality) in cooperation with 23 local and state agencies expanded the use of predictive modeling at 45 beaches throughout the Great Lakes (fig 1). Local agencies measure fecal-indicator bacteria such as Escherichia coli (E. coli.) along with easily obtained environmental variables used as surrogates to estimate conc
Assessment of Groundwater Resources to Adapt to Climate Change at Fire Island, New York
Summary Fire Island National Seashore (FIIS) occupies 42 km of the barrier island for which it is named that lies off the southern shore of western and central Suffolk County, Long Island, N.Y. Fire Island is underlain by a complex aquifer system consisting of unconsolidated glacial, lacustrine, deltaic, and marine deposits of clay, silt, sand, and gravel that range in age from Late Cretaceous
Mercury Cycling and Bioaccumulation in the Upper Hudson River Basin--Fishing Brook
BackgroundDetailed investigations of mercury cycling and bioaccumulation have been done in the Upper Hudson River basin (upstream of the Hudson River near Newcomb, in New York's Adirondack Mountains, with a focus on the Fishing Brook sub-basin, part of the western headwaters of the Hudson River. This study is part of a National mercury study that includes a concurrent study of McTier Creek, a head
Assessing Spatiotemporal Patterns in Fish Assemblages from Acid-Sensitive Streams in the Adirondack and Catskill Mountains
Background With few exceptions, the contemporary and past effects of acidification on fish populations and communities in streams across acid-sensitive regions of NY have not been documented. The pervasive lack of information only permits anecdotal insight into the spatial effects of acidification on stream-fish assemblages and essentially precludes any broad effort to quantify temporal trends
Organic Wastewater Contaminants in New York City Watersheds
Problem - In August 2000, eleven sites were sampled from 9 streams within the Croton watershed for pharmaceuticals and other organic compounds associated with wastewater as part of a national study of these compounds in streams receiving wastewater discharges. Results from the national study indicated that streams in the Croton Reservoir downstream of sewage treatment plants had concentrations
Organic Wastewater and Pesticide Monitoring at Key Points in the New York City Reservoir System
Problem Samples were collected from 10 Key Point sites in the New York City Reservoir system as part of the cooperative USGS-New York State Department of Environmental Conservation (NYSDEC) statewide pesticide monitoring project ( Phillips and others, 2000). Ten pesticides were detected in the key-point samples collected between January 1999 and September 2000 - the herbicides atrazine, metolac
Estimating Loading Above and Below Agricultural Best Management Practices (BMPs) and Combined Animal Feeding Operations (CAFOs) in the Genesee River Watershed
The current information available for the Genesee River and watershed is insufficient to assess if the Beneficial Use Impairment (BUI) delisting criteria for the Rochester Embayment Area of Concern (AOC) can or have been met. With on-going and future projects that are implementing best practices to control soil erosion and the reduction of nutrients that reach the Rochester Embayment, the river an
Use of telemetry to assess potential effects of Schoharie Reservoir waters on trout populations in the Upper Esopus Creek
Background - Turbid waters originating in the Schoharie Reservoir allegedly impair habitat and resident trout populations in Upper Esopus Creek; however, to date no scientific studies have documented adverse affects of altered thermal, suspended sediment (turbidity), and flow regimes on survival, growth, or behavior of trout or the health of their populations. The 424 mi2 Esopus Creek watershed is
Quantitative assessment of water quality in the Upper Esopus Creek using fatty acid content of periphyton
Problem - The Esopus Creek is located in the Catskill Mountains of New York State and is part of the New York City (NYC) drinking water supply system. The basin was dammed in 1915 to form the Ashokan Reservoir splitting the creek into Upper (upstream of the reservoir) and Lower segments. The Schoharie Reservoir, located 27 miles north of the Ashokan Reservoir, supplies water to Upper Esopus Creek
Didymosphenia geminata in the Upper Esopus Creek: Seasonal changes in density and distribution, controlling environmental factors, and potential ecosystem impacts
Background The invasive diatom Didymosphenia geminata (didymo) has historically been a wide-spread, but rare, micro algae found in moderately flowing cold-water streams of North America, Europe, Asia, and (more recently) New Zealand. Demographic patterns of didymo have recently changed resulting in greater spatial coverage and temporal persistence (e.g. blooms) in streams worldwide. Didymo blooms
Effects of recreational flow releases on natural resources of the Indian and Hudson Rivers
The New York State Department of Environmental Conservation (NYSDEC) is developing a unit management plan/environmental impact statement (UMP/EIS) for the Hudson Gorge Primitive Area, an area of Forest Preserve land encompassing a scenic stretch of the Hudson River in the Adirondack Park. Two goals of the UMP/EIS are to inventory natural resources and ecosystems and take actions to protect those r
Identifying Thermal Refuges in the Schoharie Watershed
Problem Water temperature is a critical component of trout habitat. Stream temperatures not only affect the distribution, behavior, and survival of trout (and other species), but also compel these species to move toward small areas of preferred temperatures, known as refuges, to maximize growth, survival, and fitness. The Schoharie watershed in the Catskill Mountains, including East Kill, West Kil