Francesco Guzzo
Francesco Guzzo is a Biological Science Technician at the Lake Erie Biological Station in Huron, OH.
Science and Products
Yellow perch (Perca flavescens) external tagging experiment data Yellow perch (Perca flavescens) external tagging experiment data
This dataset includes information from a yellow perch (Perca flavescens) tagging experiment, where the goal was to evaluate tag retention rates, and impact of tagging on growth, condition, and survival. Fish were held in a recirculating aquaculture system (RAS) over a 168-day period to evaluate four external tag types including loop, ring, streamer, and T-bar anchor tags. Data were...
Lake Erie Fish Community Data, 2013-2025 Lake Erie Fish Community Data, 2013-2025
Assessing the distribution and abundance of both predator and prey (forage) fish species is a cornerstone of ecosystem-based fishery management and supports decision making that considers food-web interactions. In support of binational Great Lakes fishery management, the objectives of this survey were to: provide estimates of densities of key forage and predator species in the western...
The Impact of seasonal hypoxia on lake whitefish migration, habitat selection, and mortality revealed by telemetry detections The Impact of seasonal hypoxia on lake whitefish migration, habitat selection, and mortality revealed by telemetry detections
Efforts to improve water quality by changing the amount of nutrients in the water can affect fish habitats and fisheries. This makes it important to coordinate fishery management and water quality efforts, taking into account how fish behave in response to changes in their habitat. This data set combines information from acoustic telemetry, which tracks the movements of native lake...
Fisheries research and monitoring activities of the Lake Erie Biological Station, 2025 Fisheries research and monitoring activities of the Lake Erie Biological Station, 2025
Lake Erie has the most populated watershed of all the Great Lakes and has undergone dramatic anthropogenic changes. Since the 1800s, overexploitation of fish populations, habitat destruction, non-native species proliferation, industrial contamination, and changes in nutrient loading have impacted the fish community including declines in or extirpation of many native species (Regier et al...
Authors
Mark Richard Dufour, Francesco Guzzo, Corbin David Hilling, Branden Eric Kohler, Richard Kraus, Richard Cole Oldham, James J. Roberts, Joseph Schmitt
Tag retention, growth, condition, and survival of externally marked Yellow Perch Tag retention, growth, condition, and survival of externally marked Yellow Perch
Objective: Determining the movement and survival of Yellow Perch Perca flavescens that inhabit Lake Erie is a priority management concern, yet contemporary understanding of their cross-jurisdictional movements and exploitation is lacking. To support future movement and survival studies, we evaluated the retention rates, condition, growth, and survival associated with four external...
Authors
Mark Richard Dufour, Francesco Guzzo, Kevin Keeler, Christopher S. Vandergoot
Fisheries research and monitoring activities of the Lake Erie Biological Station, 2024 Fisheries research and monitoring activities of the Lake Erie Biological Station, 2024
A comprehensive understanding of fish populations and their interactions is the cornerstone of modern fishery management and the basis for Lake Erie’s Fish Community Objectives (FCOs) developed in 2020 (Francis et al. 2020). The 2024 U.S. Geological Survey (USGS) Lake Erie Biological Station Annual Report is responsive to these FCOs and the USGS obligations via a Memorandum of...
Authors
Mark Richard Dufour, Francesco Guzzo, Corbin David Hilling, Kevin R. Keretz, Richard Kraus, Richard Cole Oldham, James J. Roberts, Joseph Schmitt
Fisheries research and monitoring activities of the Lake Erie Biological Station, 2023 Fisheries research and monitoring activities of the Lake Erie Biological Station, 2023
This report presents biomass-based summaries of fish communities in western Lake Erie derived from USGS bottom trawl surveys conducted from 2013 to 2023. Analyses herein evaluated trends in total biomass, abundance of dominant predator and forage species, non-native species composition, biodiversity and community structure. Data from this effort can be explored interactively online and...
Authors
Mark Richard Dufour, Francesco Guzzo, Corbin David Hilling, Kevin R. Keretz, Richard Kraus, Richard Cole Oldham, James J. Roberts, Joseph Schmitt
Science and Products
Yellow perch (Perca flavescens) external tagging experiment data Yellow perch (Perca flavescens) external tagging experiment data
This dataset includes information from a yellow perch (Perca flavescens) tagging experiment, where the goal was to evaluate tag retention rates, and impact of tagging on growth, condition, and survival. Fish were held in a recirculating aquaculture system (RAS) over a 168-day period to evaluate four external tag types including loop, ring, streamer, and T-bar anchor tags. Data were...
Lake Erie Fish Community Data, 2013-2025 Lake Erie Fish Community Data, 2013-2025
Assessing the distribution and abundance of both predator and prey (forage) fish species is a cornerstone of ecosystem-based fishery management and supports decision making that considers food-web interactions. In support of binational Great Lakes fishery management, the objectives of this survey were to: provide estimates of densities of key forage and predator species in the western...
The Impact of seasonal hypoxia on lake whitefish migration, habitat selection, and mortality revealed by telemetry detections The Impact of seasonal hypoxia on lake whitefish migration, habitat selection, and mortality revealed by telemetry detections
Efforts to improve water quality by changing the amount of nutrients in the water can affect fish habitats and fisheries. This makes it important to coordinate fishery management and water quality efforts, taking into account how fish behave in response to changes in their habitat. This data set combines information from acoustic telemetry, which tracks the movements of native lake...
Fisheries research and monitoring activities of the Lake Erie Biological Station, 2025 Fisheries research and monitoring activities of the Lake Erie Biological Station, 2025
Lake Erie has the most populated watershed of all the Great Lakes and has undergone dramatic anthropogenic changes. Since the 1800s, overexploitation of fish populations, habitat destruction, non-native species proliferation, industrial contamination, and changes in nutrient loading have impacted the fish community including declines in or extirpation of many native species (Regier et al...
Authors
Mark Richard Dufour, Francesco Guzzo, Corbin David Hilling, Branden Eric Kohler, Richard Kraus, Richard Cole Oldham, James J. Roberts, Joseph Schmitt
Tag retention, growth, condition, and survival of externally marked Yellow Perch Tag retention, growth, condition, and survival of externally marked Yellow Perch
Objective: Determining the movement and survival of Yellow Perch Perca flavescens that inhabit Lake Erie is a priority management concern, yet contemporary understanding of their cross-jurisdictional movements and exploitation is lacking. To support future movement and survival studies, we evaluated the retention rates, condition, growth, and survival associated with four external...
Authors
Mark Richard Dufour, Francesco Guzzo, Kevin Keeler, Christopher S. Vandergoot
Fisheries research and monitoring activities of the Lake Erie Biological Station, 2024 Fisheries research and monitoring activities of the Lake Erie Biological Station, 2024
A comprehensive understanding of fish populations and their interactions is the cornerstone of modern fishery management and the basis for Lake Erie’s Fish Community Objectives (FCOs) developed in 2020 (Francis et al. 2020). The 2024 U.S. Geological Survey (USGS) Lake Erie Biological Station Annual Report is responsive to these FCOs and the USGS obligations via a Memorandum of...
Authors
Mark Richard Dufour, Francesco Guzzo, Corbin David Hilling, Kevin R. Keretz, Richard Kraus, Richard Cole Oldham, James J. Roberts, Joseph Schmitt
Fisheries research and monitoring activities of the Lake Erie Biological Station, 2023 Fisheries research and monitoring activities of the Lake Erie Biological Station, 2023
This report presents biomass-based summaries of fish communities in western Lake Erie derived from USGS bottom trawl surveys conducted from 2013 to 2023. Analyses herein evaluated trends in total biomass, abundance of dominant predator and forage species, non-native species composition, biodiversity and community structure. Data from this effort can be explored interactively online and...
Authors
Mark Richard Dufour, Francesco Guzzo, Corbin David Hilling, Kevin R. Keretz, Richard Kraus, Richard Cole Oldham, James J. Roberts, Joseph Schmitt