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Description of Work The Great Lakes Restoration Initiative (GLRI) was established to accelerate ecosystem restoration in the Great Lakes by confronting the most serious threats to the region, such as nonpoint source pollution, toxic sediments, and invasive species. Three Priority Watersheds have been targeted by the Regional Working Group's Phosphorus Reduction Work Group (Fox/Green Bay, Saginaw, and Maumee) and are characterized by having a high density of agricultural land use and have ecosystem impairments that have been clearly identified. Within the Maumee River Priority Watersheds, monitoring is being conducted at the sub-watershed, edge-of-field, and subsurface-tile scale. The edge-of-field and subsurface-tile...
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Description of Work The Great Lakes Observing System (GLOS) coordinates and integrates regional coastal observations supporting national and regional priorities including Great Lakes restoration. The Department of Interior backbone project is providing GLOS equipment for collecting water-quality sensor parameters and samples for organic and metal contaminants, and nutrient and sediment data in tributaries, embayments, and the nearshore to determine and guide restoration activities. Simulation models are also being developed that will provide quantifiable measures of restoration progress and comparisons of progress over time and space.
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Description of Work The Great Lakes Restoration Initiative (GLRI) was established to accelerate ecosystem restoration in the Great Lakes by confronting the most serious threats to the region, such as nonpoint source pollution, toxic sediments, and invasive species. Three Priority Watersheds have been targeted by the Regional Working Group's Phosphorus Reduction Work Group (Fox/Green Bay, Saginaw, and Maumee) and are characterized by having a high density of agricultural land use and have ecosystem impairments that have been clearly identified. Within the Fox River Priority Watershed, monitoring is being conducted at the sub-watershed and edge-of-field scale. The edge-of-field stations are targeted to those areas...
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Habitat suitability was estimated for invasive Phragmites in the coastal Great Lakes region (shoreline to 10 km inland). These estimates were based on current distribution patterns and environmental conditions. Phragmites presence or absence was defined based on a distribution map produced by cooperative research between the GLSC and Michigan Technical Research Institute. Environmental variables were processed in a Geographic Information System (GIS) and came from existing publicly available sources. Variables include descriptors of soils, nutrients, topography, ecoregion, anthropogenic disturbance, and climate. Environmental conditions and Phragmites presence/absence were sampled in a GIS at points established...
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Description of Work Since the early 2000s, the LaMP has proposed adding nutrients (specifically phosphorus) to its “pollutant of concern” list, given that excessive nutrients were believed to cause impairments in the nearshore waters. Since that time, scientists have highlighted the “shunting” of nutrients to the nearshore, owing to the ability of invasive dreissenid mussels to capture some portion of allochthanous phosphorus that enters the lake through tributaries. These changes are believed to underlie a series of changes in the nearshore, including increased biomass of cladophora and hypothesized increases in benthic and pelagic biomass, including zooplankton and fish. As an extension, this model proposes the...
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Description of Work The main objective of this project is to identify locations within the St. Clair and Detroit Rivers that provide the best opportunities for remediation of fish spawning and nursery habitats, with the ultimate goal of enhancing native fish populations. Information about existing river habitat, current patterns, fish nursery areas, movements, spawning, and early life habitat requirements are being used in adaptive management models to identify areas suitable for creation or restoration of fish habitats. Physical and biological information are being coupled to show where and how habitat restoration will produce the strongest benefits to native fishes at multiple locations in the St. Clair and Detroit...
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Description of Work U.S. Geological Survey (USGS) will use remote sensing data to establish a baseline understanding of current distributions of invasive wetland plants and then forecast potential invasion corridors. Alterations to the Great Lakes shoreline or water-level patterns associated with global climate change could have significant impacts on the extent and composition of coastal habitat. Low lake levels can expose fertile wetland bottomlands to invasive species such as common reed ( Phragmites). Goals & Objectives Goals: Identify current Phragmites distribution in the Great Lakes coastal zone, detect potential areas vulnerable to invasion due to influences such as altered water levels, nutrient and...
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Description of Work In collaboration with 23 local and state agencies, beach-specific models were developed at 43 beaches throughout the Great Lakes region, and data were collected at 6 more beaches for future predictive model development. A predictive modeling workshop was hosted by USGS with instructors from USGS, USEPA, and Wisconsin DNR and included training on the use of USGS-developed data aggregation tools and USEPA’s Virtual Beach. Relevance & Impact Over 56 beaches across the Great Lakes region, in addition to those currently being monitored, will be included in this effort to help meet goals for healthier beaches. Key Findings Analyses were completed for a suite of pathogens at 12 Great Lakes beaches....
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Description of Work This project is designed to (1) collect more frequent total suspended sediment (TSS) and total phosphorous (TP) data for the Genesee River Watershed, especially sub-watersheds at the 12-digit HUC (Hydrologic Unit code) scale, both within and outside of the AOC; and (2) to conduct a pilot study capable of evaluating the reduction in sediments and nutrients from the current and proposed GLRI non-point source reduction projects in the watershed aggregated at the 12-digit HUC. This project is envisioned as a two-year pilot for the Genesee River Watershed, with potentially wider applications in the Lake Ontario Basin and other Great Lake areas.
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The Lakewide Management Plans (LaMPs) within the Great Lakes region are examples of broad-scale, collaborative resource-management efforts that require a sound ecosystems approach. Yet, the LaMP process is lacking a holistic framework that allows these individual actions to be planned and understood within the broader context of the Great Lakes ecosystem. To help this issue, a conceptual framework for Lake Michigan Coastal/Nearshore Ecosystems was developed to address for major LaMP goals; Can we drink the water?, Can we eat the fish?, Can we swim in the water?, Are all habitats healthy, naturally diverse, and sufficient to sustain viable biological communities?
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Description of Work Studies assessing seasonal and spatial changes in digestive enzymes and gill raker morphology in bigheaded carps and native planktivorous fishes have been completed. Results indicate that bigheaded carps feed earlier in the year than native filter-feeding fishes and that certain digestive enzymes present in bigheaded carps are either not present in some native fishes or are much less active in the native species than in bigheaded carps. Results also indicate that the gill raker morphology of bigheaded carps is relatively constant with minimal seasonally or spatially relevant changes unlike that of the native gizzard shad (Dorosoma cepedianum) which had both seasonal and spatially correlated changes...
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Description of Work 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 and 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)...
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Monthly water yields for 105,829 catchments and corresponding flows for 107,691 stream segments were estimated for water years 1951-2012 in the United States part of the Great Lakes Basin. Estimates were computed using the AFINCH (Analysis of Flows In Networks of CHannels) application within the NHDPlus geospatial data framework. AFINCH provides an environment to develop constrained regression models to integrate monthly streamflow and water-use data with monthly climatic data and fixed basin characteristics data available within NHDPlus or supplied by the user. Monthly flow time series for individual stream segments can be retrieved and used to approximate monthly flow duration characteristics and to identify possible...
map background search result map search result map Phragmites Habitat Suitability Water Toxicity in the St. Lawrence River at Massena Area of Concern Saginaw River Edge of Field Monitoring Maumee River Edge of Field Monitoring Enhance Great Lakes beach recreational water quality decision making Evaluation of Phosphorus Reduction - Fox River Forecasting Potential Phragmites Coastal Invasion Corridors Lakewide Management Plan Capacity Support by U.S. Geological Survey - LAKE MICHIGAN Fish Habitat Enhancement Strategies for the Huron-Erie Corridor Genesee River BUI / Genesee River Watershed: TSS and TP loading collection and Pilot Project to Evaluate Aggregate BMP Effectiveness Exploring nearshore-offshore linkages in energy transfer within Great Lakes food webs: implications for fish production in Lake Michigan in support of CSMI 2015 Monthly water yields and flows from 1951-2012 for the United States part of the Great Lakes Basin estimated using AFINCH Water Toxicity in the St. Lawrence River at Massena Area of Concern Maumee River Edge of Field Monitoring Evaluation of Phosphorus Reduction - Fox River Saginaw River Edge of Field Monitoring Genesee River BUI / Genesee River Watershed: TSS and TP loading collection and Pilot Project to Evaluate Aggregate BMP Effectiveness Fish Habitat Enhancement Strategies for the Huron-Erie Corridor Lakewide Management Plan Capacity Support by U.S. Geological Survey - LAKE MICHIGAN Exploring nearshore-offshore linkages in energy transfer within Great Lakes food webs: implications for fish production in Lake Michigan in support of CSMI 2015 Enhance Great Lakes beach recreational water quality decision making Forecasting Potential Phragmites Coastal Invasion Corridors Phragmites Habitat Suitability Monthly water yields and flows from 1951-2012 for the United States part of the Great Lakes Basin estimated using AFINCH