Barry P Baldigo
Barry Baldigo has been a Research Biologist with the U.S. Geological Survey since 1990. He leads numerous collaborative studies that aim to improve our understanding of the health of aquatic ecosystems, impacts of environmental contaminants and hydrologic modification, important interrelations, and management options that help mitigate ecological disturbance and sustain valuable natural resources.
Professional Membership:
Society of Environmental Toxicology and Chemistry
American Fisheries Society
New York State Chapter of the American Fisheries Society
Society for Freshwater Science (formerly North American Benthological Society)
Science and Products
Filter Total Items: 41
Documenting Biological Recovery in Acidified Adirondack Streams in Response to the 1990 Amendment to the Clean Air Act
BACKGROUND Chemistry data from a group of Adirondack lakes monitored since the mid-1990s indicate that chemical recovery is currently underway and can be attributed to declining deposition loads of sulfate and nitrate in direct response to the 1990 amendment to the Clean Air Act (CAA) and other regulations. Changes in the water quality of several western Adirondack streams suggest that...
Areas of Concern: New York Statewide Fish Collection - Contaminants in fish from the Buffalo River AOC
The New York State Department of Environmental Conservation (NYSDEC) and Department of Health (NYSDOH), and the U.S. Geological Survey (USGS) sampled fish from the Buffalo River AOC during summer 2017 to help determine if current fish-consumption advisories are appropriate and if residue data support or do not support removal of the “Restrictions on Fish and Wildlife Consumption” beneficial use...
Areas of Concern: Niagara River
USGS scientists participated in several projects supporting work in the Niagara River Area of Concern including: 1) Evaluating toxicity in Benthos Sediment, 2) Tracking PCB Sources in the AOC, and Identifying Source Areas Contributing to Contaminants Found in Fish Tissue.
Eighteenmile Creek Area of Concern Fish Community Assessment
Background: Eighteenmile Creek was designated as an Area of Concern (AOC) in 1985 because water quality and bed sediments were contaminated by past industrial and municipal discharges, waste disposal, and pesticide usage. Five Beneficial Use Impairments (BUIs) were identified in the Eighteenmile Creek AOC, including BUI #3 - the degradation of fish and wildlife populations. The remedial...
Status of American Eel populations in the Mohawk River Basin
Background: The waters of the Mohawk River basin are inhabited by one of the richest fish communities on the East Coast. The American Eel, Anguilla rostrata, is a unique member of this community, exhibiting a catadramous (maturing in fresh water and spawning in salt water) life history. Like many migratory fish, the American Eel has suffered a general decline across the East Coast...
Track down survey of PCBs in three tributaries to the Niagara River Area of Concern (AOC)
Background Industrial discharges of toxic and bio-accumulating compounds to the Niagara River and its tributaries have occurred over many decades. High concentrations of polychlorinated biphenyls (PCBs) have been found in samples of fish tissue from many locations, including three tributaries to the Niagara River: Tonawanda Creek, Two mile Creek, and Rattlesnake Creek (study reaches...
Contaminants in fish tissues from AOCs in New York State: The Niagara River AOC
DEC collaborators collect fish from a Niagara River tributary using an electrofishing boat The New York State Department of Environmental Conservation (NYSDEC) and Department of Health (NYSDOH), and the U.S. Geological Survey (USGS) are gathering data on chemical contaminants in fish from multiple Areas of Concern (AOCs) in New York State and plan to use this information to evaluate fish...
Niagara River AOC-wide Benthos BUI Assessment
A USGS biologist prepares to collect a sediment sample using a petit ponar dredge. Background:The Niagara River forms the boundary between the United States and Canada and was designated as a binational Area of Concern (AOC) in 1987 because past industrial discharges and hazardous waste sites had caused extensive degradation of aquatic habitats. Within the United States (eastern) portion...
Quantitative Fish Surveys of Mohawk River Tributaries
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 eutrophication...
Long-term trends in Rainbow Trout growth and naturalized populations in the Ashokan Basin
Background: Rainbow Trout (Oncorhynchus mykiss) have thrived in the Esopus Creek since their introduction in the 1880s. The construction of the Ashokan Reservoir in 1915 changed the fishery by providing a stable lentic environment where adult trout could grow large and find refuge during periods when stream conditions become stressful. Although many adult Rainbow Trout spend time in the...
Monitoring the Status and Expansion of Round Goby Populations in the Mohawk River/Barge Canal System
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...
Contaminants in fish tissues from AOCs in New York State: The Buffalo River AOC 2-year post remediation
Background The New York State Department of Environmental Conservation (NYSDEC) and Department of Health (NYSDOH), and the U.S. Geological Survey (USGS) plan to obtain data on chemical contaminants in fish from multiple Areas of Concern (AOCs) in New York State and use this information to evaluate fish consumption advisories, which are a critical component of most removal criteria for
Science and Products
Filter Total Items: 41
Documenting Biological Recovery in Acidified Adirondack Streams in Response to the 1990 Amendment to the Clean Air Act
BACKGROUND Chemistry data from a group of Adirondack lakes monitored since the mid-1990s indicate that chemical recovery is currently underway and can be attributed to declining deposition loads of sulfate and nitrate in direct response to the 1990 amendment to the Clean Air Act (CAA) and other regulations. Changes in the water quality of several western Adirondack streams suggest that...
Areas of Concern: New York Statewide Fish Collection - Contaminants in fish from the Buffalo River AOC
The New York State Department of Environmental Conservation (NYSDEC) and Department of Health (NYSDOH), and the U.S. Geological Survey (USGS) sampled fish from the Buffalo River AOC during summer 2017 to help determine if current fish-consumption advisories are appropriate and if residue data support or do not support removal of the “Restrictions on Fish and Wildlife Consumption” beneficial use...
Areas of Concern: Niagara River
USGS scientists participated in several projects supporting work in the Niagara River Area of Concern including: 1) Evaluating toxicity in Benthos Sediment, 2) Tracking PCB Sources in the AOC, and Identifying Source Areas Contributing to Contaminants Found in Fish Tissue.
Eighteenmile Creek Area of Concern Fish Community Assessment
Background: Eighteenmile Creek was designated as an Area of Concern (AOC) in 1985 because water quality and bed sediments were contaminated by past industrial and municipal discharges, waste disposal, and pesticide usage. Five Beneficial Use Impairments (BUIs) were identified in the Eighteenmile Creek AOC, including BUI #3 - the degradation of fish and wildlife populations. The remedial...
Status of American Eel populations in the Mohawk River Basin
Background: The waters of the Mohawk River basin are inhabited by one of the richest fish communities on the East Coast. The American Eel, Anguilla rostrata, is a unique member of this community, exhibiting a catadramous (maturing in fresh water and spawning in salt water) life history. Like many migratory fish, the American Eel has suffered a general decline across the East Coast...
Track down survey of PCBs in three tributaries to the Niagara River Area of Concern (AOC)
Background Industrial discharges of toxic and bio-accumulating compounds to the Niagara River and its tributaries have occurred over many decades. High concentrations of polychlorinated biphenyls (PCBs) have been found in samples of fish tissue from many locations, including three tributaries to the Niagara River: Tonawanda Creek, Two mile Creek, and Rattlesnake Creek (study reaches...
Contaminants in fish tissues from AOCs in New York State: The Niagara River AOC
DEC collaborators collect fish from a Niagara River tributary using an electrofishing boat The New York State Department of Environmental Conservation (NYSDEC) and Department of Health (NYSDOH), and the U.S. Geological Survey (USGS) are gathering data on chemical contaminants in fish from multiple Areas of Concern (AOCs) in New York State and plan to use this information to evaluate fish...
Niagara River AOC-wide Benthos BUI Assessment
A USGS biologist prepares to collect a sediment sample using a petit ponar dredge. Background:The Niagara River forms the boundary between the United States and Canada and was designated as a binational Area of Concern (AOC) in 1987 because past industrial discharges and hazardous waste sites had caused extensive degradation of aquatic habitats. Within the United States (eastern) portion...
Quantitative Fish Surveys of Mohawk River Tributaries
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 eutrophication...
Long-term trends in Rainbow Trout growth and naturalized populations in the Ashokan Basin
Background: Rainbow Trout (Oncorhynchus mykiss) have thrived in the Esopus Creek since their introduction in the 1880s. The construction of the Ashokan Reservoir in 1915 changed the fishery by providing a stable lentic environment where adult trout could grow large and find refuge during periods when stream conditions become stressful. Although many adult Rainbow Trout spend time in the...
Monitoring the Status and Expansion of Round Goby Populations in the Mohawk River/Barge Canal System
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...
Contaminants in fish tissues from AOCs in New York State: The Buffalo River AOC 2-year post remediation
Background The New York State Department of Environmental Conservation (NYSDEC) and Department of Health (NYSDOH), and the U.S. Geological Survey (USGS) plan to obtain data on chemical contaminants in fish from multiple Areas of Concern (AOCs) in New York State and use this information to evaluate fish consumption advisories, which are a critical component of most removal criteria for