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Macroinvertebrate samples were collected from streams tributary to Honnedaga Lake and from the Middle Branch of the Black River during 2012-2016 and analyzed for methylmercury concentrations and for stable isotope ratios of nitrogen and carbon. Macroinvertebrates were identified in the field, and the level of taxonomic resolution varied from order to species; most taxa were identified to the family level. Specimens were field-processed into composite samples, field-frozen, and submitted to the mercury laboratory for freeze-drying and analysis. Subsamples were then submitted to the stable isotope laboratory for analysis of nitrogen and carbon isotope ratios. This database contains the resulting data and associated...
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Background Deoxyribonucleic acid (DNA) is the hereditary material in organisms that contains the biological instructions for building and maintaining them. The chemical structure of DNA is the same for all organisms, but differences exist in the order of the DNA building blocks, known as base pairs. Unique sequences provide a means to identify individual species and detect their presence within aquatic or terrestrial environments. Environmental DNA (eDNA) is nuclear or mitochondrial DNA that is shed from an organism into the environment. Sources of eDNA include feces, mucous, and gametes; shed skin; and carcasses. In aquatic environments, eDNA is diluted and distributed by currents and other hydrological processes....
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Background: The waters of the Mohawk River and its tributaries are inhabited by some of the most diverse fish communities in the Northeast. The construction of the Erie Canal in 1825, and later the Barge Canal in 1918, enabled the westward expansion of fishes from the Hudson River drainage as well as the eastward expansion of fishes indigenous to the Great Lakes drainage. Today, almost half of the fish species in the Mohawk River are nonnative (Carlson and Daniels, 2004) and George et al (2016), yet the fish community still fulfills many important economic and ecological functions. The Round Goby (Neogobius melanostomus) is an invasive benthic fish indigenous to Ponto-Caspian region of Eurasia that is invading eastward...
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Background Heavy metals, phosphorus, and organic contaminants in water and sediments of the lower Genesee River, resulted in the designation of fourteen beneficial uses as impaired in the Rochester Embayment Area of Concern (AOC). The benthic macroinvertebrate community or “benthos” Beneficial Use Impairment (BUI) was designated as degraded in the Genesee River because the New York State Department of Environmental Conservation (NYSDEC) impairment metrics generally identified slight to moderate impacts through the 1990s and 2000s. Accumulation of “sediments on more suitable substrates” and “contaminants in sediment of the Genesee River related to past municipal and industrial waste-water treatment plant discharges...
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Problem - Plastic debris pollution in freshwater ecosystems is becoming a major ecosystem and public health concern. Plastic pollution is now identified as the most abundant anthropogenic debris and it is found throughout all marine environments, comprising 60-80% of all floating debris (Eriksen et al., 2013). This debris can have a lasting effect on marine life through ingestion or entanglement (Laist, 1987). Recent studies in small tributaries and freshwater environments (Baldwin, 2016) indicate microplastic pollution is pervasive across all hydrologic environments. Mike Antidormi using a net sampler to collect a microplastic sample Microscope used for size, colors, and count for microplastics analyisis...
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Background 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 drainage area of Upper Esopus Creek, between the source (Winisook Lake) and the Ashokan Reservoir is approximately 192 mi2. The Schoharie Reservoir, located 27 miles north of the Ashokan Reservoir, also supplies water to Upper Esopus Creek (and to the Ashokan Reservoir) via the Shandaken tunnel. Waters from the Schoharie watershed enter Upper Esopus Creek at the Shandaken portal and travel 18 km before entering the Ashokan...
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Background Past water-quality issues in the St. Lawrence River at Massena, NY resulted in a determination that selected beneficial uses may be impaired in a surrounding Area of Concern (AOC) and on the Canadian side of the international boundary (Cornwall, Ontario). The plankton (phytoplankton zooplankton) Beneficial Use Impairment (BUI) was so designated because impairment metrics were unavailable or inconclusive. Recent investigations, however, suggest that plankton communities are relatively healthy and no longer threaten the local ecosystem. Thus, the BUI for plankton may now be outdated in all, or parts of, the St. Lawrence River in the Massena AOC. The primary goal for the Massena (and Cornwall) Remedial Action...
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Background Past water-quality issues in the St. Lawrence River at Massena, NY resulted in a determination that selected beneficial uses were impaired in a surrounding Area of Concern (AOC) and on the Canadian side of the international boundary (Cornwall, Ontario). The benthic macroinvertebrate community or “benthos” Beneficial Use Impairment (BUI) was designated degraded because impairment metrics were unavailable or inconclusive. Recent sampling efforts by New York State Department of Environmental Conservation (NYSDEC) as part of their Rotating Integrated Basin Studies (RIBS) program indicate that macroinvertebrate communities in some sections of the St. Lawrence River and its tributaries in the Massena AOC are...
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The dataset is composed of two tables containing data collected during screening surveys for invasive Round Goby (Neogobius melanostomus) on the Eastern Erie Canal in New York. Environmental DNA using water samples and traditional fish surveys using benthic trawling, seining, and trapping were conducted twice annually at 12 sites on the Eastern Erie Canal between Oneida Lake and the Hudson River from 2016-2019. Study sites were selected to be approximately equidistant apart (~ 20 km) while also taking advantage of suitable access points. Within a study site, the exact areas that were sampled were often staggered by 500 m or occasionally more in order to find appropriate habitat for each gear type (i.e., wadable...
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Background Watersheds of the Great Smoky Mountains National Park (GRSM) receive high levels of acid deposition resulting from atmospheric emissions of nitrogen and sulfur oxides. Acidic deposition has been shown to reduce acid neutralizing capacity (ANC) and calcium concentrations and increase acidity and aluminum concentrations in soils and surface waters and affect forest health as well as fish and macroinvertebrate assemblages across the GRSM. In fact, 12 streams on the Tennessee-side of the GRSM National Park are listed on the Clean Water Act’s 303d list of impaired surface waters for failing the pH standard (<6.0) as a result of atmospheric deposition of air pollutants (mainly nitrogen and sulfur). In the...
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Background Fish communities of the mainstem Mohawk River and Barge Canal have been well-documented (Carlson, 2015; George et al., 2016) but comparatively less information is available regarding the current status of fish communities in tributaries to the Mohawk River. This information gap is problematic because long-term shifts in species distributions or abundances due to climate change, eutrophication, or other anthropogenic stressors may go unnoticed in the absence of baseline data. More importantly, an approaching invasive fish species, the Round Goby (Neogobius melanostomus), is expected to colonize much of the Mohawk River and the lower portion of many major tributaries. Introductions of Round Goby have had...
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The dataset is composed of two data tables containing information from boat electrofishing surveys of two tributaries to Lake Ontario, Eighteenmile Creek and Oak Orchard Creek during June 2019. The first data table contains fish collection information and the second data table contains information on the sampled reaches.
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Background Acidification of lotic and lentic environments has been found to adversely affect the integrity of resident biological assemblages. These effects have been particularly severe in poorly buffered regions like the Western Adirondacks. Although the Clean Air Act and its amendments have greatly reduced levels of atmospheric deposition, many streams in this region are still chronically or episodically acidified. In-stream and watershed-wide liming are two directed-mitigation techniques which could be used to accelerate ecosystem recovery and help restore the condition of biological assemblages. The costs and abilities (as well as effective duration) of these techniques to improve water and soil chemistry,...
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Fish tissue from 159 samples collected at four locations in the Buffalo River Area of Concern in 2017 were analyzed for a wide range of analytes including Polychlorinated Biphenyls (PCBs), pesticides, polycyclic aromatic hydrocarbons, organochlorine and other persistent organic compounds, metals, lipid and moisture. Over 230 analytes were analyzed in the tissue samples, including 160 PCB congeners. The data set includes a variety of laboratory quality assurance data including sample replicates, laboratory blank data, laboratory spike data, matrix spike recoveries, and replicate matrix spike recoveries.
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Background Discharges from non-point sources, municipal and industrial point sources, and combined sewage overflows over the last century resulted in elevated levels of heavy metals, conventional pollutants, phosphorus, and toxic organic contaminants in water and sediments of the Lower Genesee River and Rochester Embayment. As a result, the zooplankton and phytoplankton or “plankton” communities were designated as one of fourteen Beneficial Use Impairments (BUI); i.e., the resource was either impaired or in need of assessment in the Rochester Embayment Area of Concern (AOC). The Rochester Embayment Remedial Action Committee (RAC) was formed by the New York State Department of Environmental Conservation (NYSDEC)...
Categories: Data, Project; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Aquatic Community Health, Aquatic Community Health, Biogeochemical and Hydrologic Assessment, Biogeochemical and Hydrologic Assessment, BiogeochemicalandHydrologicAssessment, All tags...
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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 and potential recovery of fish assemblages in less acidic or less toxic streams. Though the effects of acidification on fish assemblages have been qualified in several streams of the eastern Adirondacks during 1979, the 1980s, and early 2000s, (Schofield and Driscoll 1987; Simonin et al. 2005) quantitative impacts were...
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Background The New York State Department of Environmental Conservation (NYSDEC) and Adirondack Lakes Survey Corporation (ALSC) repeatedly surveyed fish assemblages and characterized water chemistry from 44 to 52 lakes during the periods 1984-1987 and 1994-2005, and 2008-2012 to document the regional effects of acidic deposition and potential recovery associated with the 1990 Clean Air Act Amendment (CAAA) under the Adirondack Long-Term Monitoring (ATLM) Project. An initial analysis of changes in fish assemblages between the periods 1984-1987 and 1994-2005 noted modest and mixed recoveries, identified five fish-community response/recovery classes, and helped to devise a fish-community index based on species acid...
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The dataset is composed of three data tables containing information from electrofishing and pebble count surveys conducted in tributaries to the Mohawk River in central and eastern New York during 2019. The first table contains information on the sampled reaches, the second table contains fish collection data, and the third table contains pebble count data.
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Background Forested watersheds in the southwestern Adirondack Mountains of New York received some of the most acidic deposition in North America from the 1970s through much of the 1990s (NADP 2005). Thus it is not surprising that associated effects on surface-water quality and ecosystems in lakes and streams of the southwestern Adirondack Mountains of New York were investigated to various extents over the past 35 years; first to document acidification effects and then to evaluate potential recovery. In fact, evidence of adverse impacts on water quality and aquatic ecosystems across the region provided much support for implementation of the Clean Air Act (CAA) of 1990. Although the underlying effect mechanisms were...
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Background Although New York State has more than 70,000 miles of streams and rivers, little is known about the status, distribution, and trends of mercury (Hg) levels in stream fish, or the environmental drivers of these patterns. Streams and their riparian zones provide critical habitat for fish, birds, mammals, reptiles and amphibians, and serve as the interface between aquatic and terrestrial Hg transfer, transformations (most notably methylation) and bioaccumulation. Importantly, monitoring data from lakes (e.g., Simonin et al. 2006) does not transfer reliably to streams because of fundamental differences in Hg cycling and bioaccumulation processes. An assessment of fish Hg bioaccumulation focused on New...


map background search result map search result map Response of Fish Assemblages to Changing Acid-base Chemistry in Adirondack Long Term Monitoring Lakes, 1984-2012 Estimating Acute and Chronic Toxicity of Waters from the Rochester Embayment Area of Concern Using Two Plankton Species Estimating chronic toxicity of waters from the St. Lawrence River at Massena Area-of-Concern using two plankton species Sediment toxicity and status of benthic invertebrate communities in the St. Lawrence River and its tributaries within the Massena Area-of-Concern Sediment Toxicity and Condition of Benthic Invertebrate Communities in the Rochester Embayment Area-of-Concern Assessing Spatiotemporal Patterns in Fish Assemblages from Acid-Sensitive Streams in the Adirondack and Catskill Mountains Quantitative Assessment of Water Quality in Upper Esopus Creek: Fish, Macroinvertebrates, Periphyton, Turbidity, and Nutrients Emerging Methods for Detection and their Potential for Inventorying Brook Trout Populations in Streams of the Western Adirondacks Effects of acid-base chemistry on biology of streams in the Great Smoky Mountains National Park Long-term Effects of the Clean Air Act on Water Toxicity and Brook Trout Survival in Acidified Streams of the Southwestern Adirondacks, 1984-2017 Effects of Watershed and In-stream Liming on Accelerated Recovery of Macroinvertebrate Assemblages in Tributaries to Honnedaga Lake Mercury Bioaccumulation in Fish in New York's Streams and Rivers Monitoring the Status and Expansion of Round Goby Populations in the Mohawk River/Barge Canal System Quantitative Fish Surveys of Mohawk River Tributaries Organic and metal contaminants in fish tissue collected from the Buffalo River Area of Concern, 2017 Data for assessing the status of resident fish communities in the Eighteenmile Creek Area of Concern, New York Mohawk Microplastics Methylmercury and associated data in macroinvertebrates from tributaries of Honnedaga Lake and from the Middle Branch Black River in New York. Environmental DNA (eDNA) and fish capture data from Round Goby screening surveys on the Eastern Erie Canal, New York Fish community and substrate data from tributaries to the Mohawk River Effects of Watershed and In-stream Liming on Accelerated Recovery of Macroinvertebrate Assemblages in Tributaries to Honnedaga Lake Estimating chronic toxicity of waters from the St. Lawrence River at Massena Area-of-Concern using two plankton species Sediment toxicity and status of benthic invertebrate communities in the St. Lawrence River and its tributaries within the Massena Area-of-Concern Organic and metal contaminants in fish tissue collected from the Buffalo River Area of Concern, 2017 Estimating Acute and Chronic Toxicity of Waters from the Rochester Embayment Area of Concern Using Two Plankton Species Sediment Toxicity and Condition of Benthic Invertebrate Communities in the Rochester Embayment Area-of-Concern Quantitative Assessment of Water Quality in Upper Esopus Creek: Fish, Macroinvertebrates, Periphyton, Turbidity, and Nutrients Data for assessing the status of resident fish communities in the Eighteenmile Creek Area of Concern, New York Effects of acid-base chemistry on biology of streams in the Great Smoky Mountains National Park Methylmercury and associated data in macroinvertebrates from tributaries of Honnedaga Lake and from the Middle Branch Black River in New York. Emerging Methods for Detection and their Potential for Inventorying Brook Trout Populations in Streams of the Western Adirondacks Long-term Effects of the Clean Air Act on Water Toxicity and Brook Trout Survival in Acidified Streams of the Southwestern Adirondacks, 1984-2017 Fish community and substrate data from tributaries to the Mohawk River Environmental DNA (eDNA) and fish capture data from Round Goby screening surveys on the Eastern Erie Canal, New York Assessing Spatiotemporal Patterns in Fish Assemblages from Acid-Sensitive Streams in the Adirondack and Catskill Mountains Monitoring the Status and Expansion of Round Goby Populations in the Mohawk River/Barge Canal System Quantitative Fish Surveys of Mohawk River Tributaries Response of Fish Assemblages to Changing Acid-base Chemistry in Adirondack Long Term Monitoring Lakes, 1984-2012 Mercury Bioaccumulation in Fish in New York's Streams and Rivers