Gregg E Mackey
Gregg is a Biological Science Technician based out of Cortland, NY.
Science and Products
Publications by this Scientist
U.S. Geological Survey Tunison Laboratory of Aquatic Science research to rehabilitate native prey fish of the Lake Ontario fish community—Coregonine fishes U.S. Geological Survey Tunison Laboratory of Aquatic Science research to rehabilitate native prey fish of the Lake Ontario fish community—Coregonine fishes
Restoration of native coregonines to Lake Ontario of the Laurentian Great Lakes will improve the diversity of forage for salmonid predators and ecological function in the lake, but efficacy of experimental releases for native species restoration must be evaluated. The Coregonine Research Program at the U.S. Geological Survey Tunison Laboratory of Aquatic Science encompassed a diverse...
Authors
James McKenna, James Johnson, Steven Lapan, Marc Chalupnicki, Gregg Mackey, Mike Millard, Kevin Loftus, Michael Connerton, Christopher Legard, Brian Weidel, Dimitry Gorsky
Cisco (Coregonus artedi) and bloater (Coregonus hoyi) culture manual Cisco (Coregonus artedi) and bloater (Coregonus hoyi) culture manual
The primary objective of the Coregonine Research Program established at the U.S. Geological Survey, Great Lakes Science Center, Tunison Laboratory of Aquatic Science as mandated by the Great Lakes Restoration Initiative is to restore native coregonines, specifically Coregonus artedi (Lesueur, 1818; ciscoes) and Coregonus hoyi (Milner, 1874; bloaters) into Lake Ontario. This objective...
Authors
Marc A. Chalupnicki, Gregg Mackey, James McKenna
Field and laboratory validation of new sampling gear to quantify coregonine egg deposition and larval emergence across spawning habitat gradients Field and laboratory validation of new sampling gear to quantify coregonine egg deposition and larval emergence across spawning habitat gradients
The influence of habitat and environmental conditions on Great Lakes coregonine reproduction is not well described, in part, because we lack sampling gears for early life stages that are effective across habitats. We designed new egg and larval emergence traps to quantify coregonine reproductive success across variable depths and substrates and tested them in laboratory and field...
Authors
Brian Weidel, Cameron Davis, Brian O’Malley, Hannah Lachance, Christopher Osborne, Alexander Gatch, Stacy Furgal, Gregg Mackey, Marc Chalupnicki, Nicholas Sard, Aaron Heisey, Michael Connerton, Brian Lantry
Results of the collaborative Lake Ontario bloater restoration stocking and assessment, 2012–2020 Results of the collaborative Lake Ontario bloater restoration stocking and assessment, 2012–2020
Bloater, Coregonus hoyi, are deepwater planktivores native to the Laurentian Great Lakes and Lake Nipigon. Interpretations of commercial fishery time series suggest they were common in Lake Ontario through the early 1900s but by the 1950s were no longer captured by commercial fishers. Annual bottom trawl surveys that began in 1978 and sampled extensively across putative bloater habitat...
Authors
Brian Weidel, Amanda Ackiss, Marc Chalupnicki, Michael Connerton, Steve Davis, John Dettmers, Timothy Drew, Aaron T. Fisk, Roger Gordon, S. Hanson, Jeremy Holden, Mark Holey, James Johnson, Timothy B. Johnson, Colin Lake, Brian Lantry, Kevin Loftus, Gregg Mackey, James McKenna, Michael Millard, Scott Minihkeim, Brian O’Malley, Adam Rupnik, Andrew Todd, Steven Lapan
Mark retention of calcein in Cisco and Bloater Mark retention of calcein in Cisco and Bloater
Since 2012, a multi-agency initiative to restore these native forage species has been under way. Evaluating the restoration success of Cisco Coregonus artedi and Bloater C. hoyi in Lake Ontario waters requires methods to identify stocked fish. However, juvenile Cisco and Bloater are fragile; thus, mass marking techniques that reduce the handling of individual fish are required and have...
Authors
Marc Chalupnicki, Gregg Mackey, Kendra Nash, Richard Chiavelli, James Johnson, Thomas Kehler, Neil Ringler
Science and Products
Publications by this Scientist
U.S. Geological Survey Tunison Laboratory of Aquatic Science research to rehabilitate native prey fish of the Lake Ontario fish community—Coregonine fishes U.S. Geological Survey Tunison Laboratory of Aquatic Science research to rehabilitate native prey fish of the Lake Ontario fish community—Coregonine fishes
Restoration of native coregonines to Lake Ontario of the Laurentian Great Lakes will improve the diversity of forage for salmonid predators and ecological function in the lake, but efficacy of experimental releases for native species restoration must be evaluated. The Coregonine Research Program at the U.S. Geological Survey Tunison Laboratory of Aquatic Science encompassed a diverse...
Authors
James McKenna, James Johnson, Steven Lapan, Marc Chalupnicki, Gregg Mackey, Mike Millard, Kevin Loftus, Michael Connerton, Christopher Legard, Brian Weidel, Dimitry Gorsky
Cisco (Coregonus artedi) and bloater (Coregonus hoyi) culture manual Cisco (Coregonus artedi) and bloater (Coregonus hoyi) culture manual
The primary objective of the Coregonine Research Program established at the U.S. Geological Survey, Great Lakes Science Center, Tunison Laboratory of Aquatic Science as mandated by the Great Lakes Restoration Initiative is to restore native coregonines, specifically Coregonus artedi (Lesueur, 1818; ciscoes) and Coregonus hoyi (Milner, 1874; bloaters) into Lake Ontario. This objective...
Authors
Marc A. Chalupnicki, Gregg Mackey, James McKenna
Field and laboratory validation of new sampling gear to quantify coregonine egg deposition and larval emergence across spawning habitat gradients Field and laboratory validation of new sampling gear to quantify coregonine egg deposition and larval emergence across spawning habitat gradients
The influence of habitat and environmental conditions on Great Lakes coregonine reproduction is not well described, in part, because we lack sampling gears for early life stages that are effective across habitats. We designed new egg and larval emergence traps to quantify coregonine reproductive success across variable depths and substrates and tested them in laboratory and field...
Authors
Brian Weidel, Cameron Davis, Brian O’Malley, Hannah Lachance, Christopher Osborne, Alexander Gatch, Stacy Furgal, Gregg Mackey, Marc Chalupnicki, Nicholas Sard, Aaron Heisey, Michael Connerton, Brian Lantry
Results of the collaborative Lake Ontario bloater restoration stocking and assessment, 2012–2020 Results of the collaborative Lake Ontario bloater restoration stocking and assessment, 2012–2020
Bloater, Coregonus hoyi, are deepwater planktivores native to the Laurentian Great Lakes and Lake Nipigon. Interpretations of commercial fishery time series suggest they were common in Lake Ontario through the early 1900s but by the 1950s were no longer captured by commercial fishers. Annual bottom trawl surveys that began in 1978 and sampled extensively across putative bloater habitat...
Authors
Brian Weidel, Amanda Ackiss, Marc Chalupnicki, Michael Connerton, Steve Davis, John Dettmers, Timothy Drew, Aaron T. Fisk, Roger Gordon, S. Hanson, Jeremy Holden, Mark Holey, James Johnson, Timothy B. Johnson, Colin Lake, Brian Lantry, Kevin Loftus, Gregg Mackey, James McKenna, Michael Millard, Scott Minihkeim, Brian O’Malley, Adam Rupnik, Andrew Todd, Steven Lapan
Mark retention of calcein in Cisco and Bloater Mark retention of calcein in Cisco and Bloater
Since 2012, a multi-agency initiative to restore these native forage species has been under way. Evaluating the restoration success of Cisco Coregonus artedi and Bloater C. hoyi in Lake Ontario waters requires methods to identify stocked fish. However, juvenile Cisco and Bloater are fragile; thus, mass marking techniques that reduce the handling of individual fish are required and have...
Authors
Marc Chalupnicki, Gregg Mackey, Kendra Nash, Richard Chiavelli, James Johnson, Thomas Kehler, Neil Ringler