Richard C Oldham
Richard Oldham is a Biological Science Technician based in Huron, OH.
Science and Products
Data releases by this scientist
Telemetry based determination of first-year survival for lake sturgeon reintroduced to the Maumee River
Lake sturgeon (Acipenser fulvescens) have experienced large population declines due to overfishing, habitat degradation, and pollution. Due to these factors, lake sturgeon were extirpated in the Maumee River watershed (Ohio, USA). In 2018, a 20-year reintroduction program began that aims to establish a self-sustaining population in the Maumee River. To understand the potential success of...
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...
Bottom dissolved oxygen measurements from Lake Erie's Central Basin, 2023
This data set, compiled by the USGS Lake Erie Biological Station, provides near-bottom measurements of temperature and dissolved oxygen for the Central Basin of Lake Erie. Data were recorded by self-contained environmental data loggers (PME, Inc., MiniDOT data loggers). The data loggers for 2023 were deployed to collect data during April 2023 through November 2023 to better understand...
Telemetry detections of hatchery reared Cisco in Lake Erie with reference to temperature and predation, 2021-2022
Cisco (Coregonus artedi) have been extirpated from Lake Erie since the 1960s, but they once supported one of the largest Laurentian Great Lakes fisheries. Reintroduction may be beneficial to the Lake Erie fishery, but impediments for re-establishment are not fully understood. This data set aimed to use acoustic telemetry to investigate the thermal habitat use and survival of hatchery...
Bottom dissolved oxygen measurements from Lake Erie's Central Basin, 2021-2022
This data set, compiled by the USGS Lake Erie Biological Station, provides near-bottom measurements of temperature and dissolved oxygen for the Central Basin of Lake Erie. Data were recorded by self-contained environmental data loggers (PME, Inc., MiniDOT data loggers). The data loggers were deployed to collect data during August 2021 through November 2022 to better understand how...
Hydroacoustic data from central Lake Erie, 2021
Hydroacoustic estimates of fish density are used for fisheries management in central Lake Erie. Hydroacoustic data were collected along 10, randomly-selected, 5-kilometer transects and two cross-basin transects between the US and Canadian shorelines in central Lake Erie during July 2021. Software-generated raw variables were used for calculating estimates of hydroacoustic fish densities...
Bottom dissolved oxygen measurements from Lake Erie's Central Basin, 2021
This data set, compiled by the USGS Lake Erie Biological Station, provides near-bottom measurements of temperature and dissolved oxygen for the Central Basin of Lake Erie. Data were recorded by self-contained environmental data loggers (PME, Inc., MiniDOT data loggers). The data loggers were deployed to collect data during mid-May 2021 through late October 2021 to better understand how...
Bottom dissolved oxygen measurements from Lake Erie's Central Basin, 2020
This data set, compiled by USGS Lake Erie Biological Station, provides near-bottom measurements of temperature and dissolved oxygen for the Central Basin of Lake Erie. Data were recorded by self-contained environmental data loggers (PME, Inc., MiniDOT data loggers). The data loggers were deployed during the stratified period (i.e., beginning of June 2020 through late October 2020) to...
Publications by this scientist
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 T. Kraus, Richard Cole Oldham, James Roberts, Joseph Schmitt
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 T. Kraus, Richard Cole Oldham, James Roberts, Joseph Schmitt
Fisheries research and monitoring activities of the Lake Erie Biological Station, 2022
This report presents biomass-based summaries of fish communities in western Lake Erie derived from USGS bottom trawl surveys conducted from 2013 to 2022 in June and September. The survey design compliments the August ODNR- OMNDMNRF effort by reinforcing stock assessments with more robust data. Analyses herein evaluated trends in total biomass, abundance of dominant predator and forage...
Authors
Mark Richard Dufour, Corbin David Hilling, Kevin R. Keretz, Richard T. Kraus, Richard Cole Oldham, James Roberts, Joseph Schmitt
Fisheries research and monitoring activities of the Lake Erie Biological Station, 2021
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 Goals and Objectives (FCOs) developed in 2020 (Francis et al. 2020). The 2021 USGS Lake Erie Biological Station annual report is responsive to these FCOs and the U.S. Geological Survey (USGS) obligations via a Memorandum of...
Authors
Mark Richard Dufour, Corbin David Hilling, Kevin R. Keretz, Richard T. Kraus, Richard Cole Oldham, James Roberts, Joseph Schmitt
Science and Products
Data releases by this scientist
Telemetry based determination of first-year survival for lake sturgeon reintroduced to the Maumee River
Lake sturgeon (Acipenser fulvescens) have experienced large population declines due to overfishing, habitat degradation, and pollution. Due to these factors, lake sturgeon were extirpated in the Maumee River watershed (Ohio, USA). In 2018, a 20-year reintroduction program began that aims to establish a self-sustaining population in the Maumee River. To understand the potential success of...
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...
Bottom dissolved oxygen measurements from Lake Erie's Central Basin, 2023
This data set, compiled by the USGS Lake Erie Biological Station, provides near-bottom measurements of temperature and dissolved oxygen for the Central Basin of Lake Erie. Data were recorded by self-contained environmental data loggers (PME, Inc., MiniDOT data loggers). The data loggers for 2023 were deployed to collect data during April 2023 through November 2023 to better understand...
Telemetry detections of hatchery reared Cisco in Lake Erie with reference to temperature and predation, 2021-2022
Cisco (Coregonus artedi) have been extirpated from Lake Erie since the 1960s, but they once supported one of the largest Laurentian Great Lakes fisheries. Reintroduction may be beneficial to the Lake Erie fishery, but impediments for re-establishment are not fully understood. This data set aimed to use acoustic telemetry to investigate the thermal habitat use and survival of hatchery...
Bottom dissolved oxygen measurements from Lake Erie's Central Basin, 2021-2022
This data set, compiled by the USGS Lake Erie Biological Station, provides near-bottom measurements of temperature and dissolved oxygen for the Central Basin of Lake Erie. Data were recorded by self-contained environmental data loggers (PME, Inc., MiniDOT data loggers). The data loggers were deployed to collect data during August 2021 through November 2022 to better understand how...
Hydroacoustic data from central Lake Erie, 2021
Hydroacoustic estimates of fish density are used for fisheries management in central Lake Erie. Hydroacoustic data were collected along 10, randomly-selected, 5-kilometer transects and two cross-basin transects between the US and Canadian shorelines in central Lake Erie during July 2021. Software-generated raw variables were used for calculating estimates of hydroacoustic fish densities...
Bottom dissolved oxygen measurements from Lake Erie's Central Basin, 2021
This data set, compiled by the USGS Lake Erie Biological Station, provides near-bottom measurements of temperature and dissolved oxygen for the Central Basin of Lake Erie. Data were recorded by self-contained environmental data loggers (PME, Inc., MiniDOT data loggers). The data loggers were deployed to collect data during mid-May 2021 through late October 2021 to better understand how...
Bottom dissolved oxygen measurements from Lake Erie's Central Basin, 2020
This data set, compiled by USGS Lake Erie Biological Station, provides near-bottom measurements of temperature and dissolved oxygen for the Central Basin of Lake Erie. Data were recorded by self-contained environmental data loggers (PME, Inc., MiniDOT data loggers). The data loggers were deployed during the stratified period (i.e., beginning of June 2020 through late October 2020) to...
Publications by this scientist
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 T. Kraus, Richard Cole Oldham, James Roberts, Joseph Schmitt
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 T. Kraus, Richard Cole Oldham, James Roberts, Joseph Schmitt
Fisheries research and monitoring activities of the Lake Erie Biological Station, 2022
This report presents biomass-based summaries of fish communities in western Lake Erie derived from USGS bottom trawl surveys conducted from 2013 to 2022 in June and September. The survey design compliments the August ODNR- OMNDMNRF effort by reinforcing stock assessments with more robust data. Analyses herein evaluated trends in total biomass, abundance of dominant predator and forage...
Authors
Mark Richard Dufour, Corbin David Hilling, Kevin R. Keretz, Richard T. Kraus, Richard Cole Oldham, James Roberts, Joseph Schmitt
Fisheries research and monitoring activities of the Lake Erie Biological Station, 2021
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 Goals and Objectives (FCOs) developed in 2020 (Francis et al. 2020). The 2021 USGS Lake Erie Biological Station annual report is responsive to these FCOs and the U.S. Geological Survey (USGS) obligations via a Memorandum of...
Authors
Mark Richard Dufour, Corbin David Hilling, Kevin R. Keretz, Richard T. Kraus, Richard Cole Oldham, James Roberts, Joseph Schmitt