The mysterious rocks and shoreline of Whitefish Point, Lake Superior. Photo credit: Cory Brant, USGS.
Cory O Brant, PhD
I'm a Biologist at the USGS-Great Lakes Science Center based in Ann Arbor, Michigan. I'm mainly interested in invasive species control and native fish restoration in the Great Lakes, and my current projects focus on sea lamprey control and cisco and whitefish (Great Lakes coregonines) restoration.
I rely on a wide range of approaches and disciplines as a scientist, from field studies and scientific surveys to oral histories, social, and archival science. I'm passionate about learning from history to help solve current and future Great Lakes conservation problems. I'm also a biological illustrator and very much enjoy drawing nature.
One of my main projects at the USGS-GLSC involves a deep and systematic dive into archives and historical records to better understand where native coregonine fish populations once spawned, and where they spawn today, in the Great Lakes. I work with a team of experts in database development, archival theory, ecology, geospatial science, and both quantitative and qualitative methods for extracting data from historic sources. Together we hope to use the information we uncover to inform the science-based Coregonine Restoration Framework (CRF) for the Great Lakes that was developed by the USGS-GLSC and US Fish and Wildlife Service in coordination with the Great Lakes Fishery Commission (GLFC). I'm also working with a team to develop and implement a methodology to conduct a gap analysis for the Great Lakes CRF, which is part of several core planning phases of the framework. My work at USGS-GLSC also includes fish morphology research and early life history studies related to coregonines (mainly ciscoes and whitefish) in the Great Lakes. Most of my coregonine early life history research is focused on Lake Huron through my involvement with the Cooperative Science and Monitoring Initiative (CSMI), a binational effort to provide lake and fishery managers with valuable science and monitoring information. We are focused on collecting and examining larval fishes throughout the lake to better understand early life history recruitment constraints these ecologically and economically important fishes may face.
Professional Experience
2020 – Present: Fishery Biologist, USGS Great Lakes Science Center, Ann Arbor, MI.
2019 – 2020: Communications and policy specialist, Great Lakes Fishery Commission and USGS Great Lakes Science Center, Ann Arbor, MI.
2015 - 2018: Postdoctoral fellow, Water Center, University of Michigan, Ann Arbor, MI. Led Great Lakes basin-wide oral history project of those affected by sea lamprey invasion, and those charged with controlling sea lamprey.
2009 – 2015: Graduate student at Michigan State University, East Lansing, MI. Led in-stream behavioral bioassays that helped discover new migratory and mating pheromones in sea lampreys.
2003 – 2008: Active member of the UW-Stevens Point student sub-unit of the American Fisheries Society, Stevens Point, WI.
2006 – 2008: Peer advisor for incoming natural resources majors, UW-Stevens Point, Stevens Point, WI.
2007: Summer internship with Minnesota Dept. of Natural Resources, Aitkin, MN. SCUBA diver for zebra mussel invasion study conducted in Mille Lacs Lake.
Education and Certifications
2018: Postdoctoral Fellowship. Aquatic invasive species policy, history, and control. University of Michigan Water Center, Ann Arbor, MI.
2015: Ph.D. Michigan State University, Li Laboratory, Department of Fisheries and Wildlife, East Lansing, MI.
2011: M.Sc. Michigan State University, Li Laboratory, Department of Fisheries and Wildlife, East Lansing, MI.
2008: B.Sc. Majors: Fisheries/Water Resources; Biology. Minor: Aquaculture. University of Wisconsin-Stevens Point, Stevens Point, WI.
Affiliations and Memberships*
International Association for Great Lakes Research (Member #5735)
Honors and Awards
2020 University of Michigan Press Book Award
Historical Society of Michigan (HSM) 2020 State History Award
Science and Products
Demographic, morphometric, and meristic data describing cisco (Coregonus artedi) captured in the Spanish River, Ontario, Canada, 15-16 November 2022
Traditional and geometric morphometric data describing wild and artificially reared cisco (Coregonus artedi) from lakes Huron and Ontario
Multimedia related to this scientist
The mysterious rocks and shoreline of Whitefish Point, Lake Superior. Photo credit: Cory Brant, USGS.
A fall day at the Tahquamenon Upper Falls, Michigan. Photo credit: Cory Brant, USGS.
A fall day at the Tahquamenon Upper Falls, Michigan. Photo credit: Cory Brant, USGS.
USGS vessel crewmembers (GLSC; Cheboygan, Michigan) and science crew (GLSC; Ann Arbor, Michigan) heave out the cod end of a bottom trawl net during the 2023 fall prey fish assessment in Lake Michigan aboard the GLSC’s R/V Arcticus. Photo credit: Cory Brant, USGS.
USGS vessel crewmembers (GLSC; Cheboygan, Michigan) and science crew (GLSC; Ann Arbor, Michigan) heave out the cod end of a bottom trawl net during the 2023 fall prey fish assessment in Lake Michigan aboard the GLSC’s R/V Arcticus. Photo credit: Cory Brant, USGS.
Leaving Alpena for a day of Great Lakes science during the Lake Huron fall forage fish survey. Photo credit: Cory Brant, USGS.
Leaving Alpena for a day of Great Lakes science during the Lake Huron fall forage fish survey. Photo credit: Cory Brant, USGS.
A larval coregonine, collected by USGS scientists during the 2022 Cooperative Science and Monitoring Initiative survey on Lake Huron, is examined and identified using a stereo microscope and high-resolution camera. Photo credit: Cory Brant, USGS.
A larval coregonine, collected by USGS scientists during the 2022 Cooperative Science and Monitoring Initiative survey on Lake Huron, is examined and identified using a stereo microscope and high-resolution camera. Photo credit: Cory Brant, USGS.
The diversity of larval fishes from one 10-minute tow collected at the surface of Lake Huron by USGS scientists during the 2022 Lake Huron Cooperative Science and Monitoring Initiative survey. Photo credit: Cory Brant, USGS.
The diversity of larval fishes from one 10-minute tow collected at the surface of Lake Huron by USGS scientists during the 2022 Lake Huron Cooperative Science and Monitoring Initiative survey. Photo credit: Cory Brant, USGS.
A determined USGS research crew sets out on Lake Huron by small vessel to lift micromesh gillnets in search of elusive juvenile lake whitefish. Photo credit: Cory Brant, USGS.
A determined USGS research crew sets out on Lake Huron by small vessel to lift micromesh gillnets in search of elusive juvenile lake whitefish. Photo credit: Cory Brant, USGS.
Pancake ice forms near the landing at Harbor Beach, Michigan, while USGS scientists scout for locations to sample for larval fishes at the start of the 2022 Lake Huron Cooperative Science and Monitoring Initiative field sampling season. Photo credit: Cory Brant, USGS.
Pancake ice forms near the landing at Harbor Beach, Michigan, while USGS scientists scout for locations to sample for larval fishes at the start of the 2022 Lake Huron Cooperative Science and Monitoring Initiative field sampling season. Photo credit: Cory Brant, USGS.
USGS leads the way out on a frozen Muskegon Lake to sample ciscoes with hook and line for morphometrics and acoustic telemetry projects. Photo credit: Cory Brant, USGS.
USGS leads the way out on a frozen Muskegon Lake to sample ciscoes with hook and line for morphometrics and acoustic telemetry projects. Photo credit: Cory Brant, USGS.
A cisco (Coregonus artedi) collected by Dr. Walter Koelz on August 20, 1920, in Lake Michigan is photographed and measured by USGS scientists at the University of Michigan Research Museums Center over 100 years later. Photo credit: Cory Brant, USGS.
A cisco (Coregonus artedi) collected by Dr. Walter Koelz on August 20, 1920, in Lake Michigan is photographed and measured by USGS scientists at the University of Michigan Research Museums Center over 100 years later. Photo credit: Cory Brant, USGS.
A slimy sculpin (left) and deepwater sculpin (right), two native sculpin species in the Great Lakes, are compared side-by-side after capture in a bottom trawl during the Lake Huron fall forage survey aboard the R/V Arcticus. Photo credit: Cory Brant, USGS.
A slimy sculpin (left) and deepwater sculpin (right), two native sculpin species in the Great Lakes, are compared side-by-side after capture in a bottom trawl during the Lake Huron fall forage survey aboard the R/V Arcticus. Photo credit: Cory Brant, USGS.
A native deepwater sculpin, captured by bottom trawl in the Lake Huron depths off Cheboygan, Michigan, is held for a quick photo op during the USGS Great Lakes Science Center fall forage sampling cruise aboard the R/V Arcticus. Photo credit: Cory Brant, USGS.
A native deepwater sculpin, captured by bottom trawl in the Lake Huron depths off Cheboygan, Michigan, is held for a quick photo op during the USGS Great Lakes Science Center fall forage sampling cruise aboard the R/V Arcticus. Photo credit: Cory Brant, USGS.
The USGS Great Lakes Science Center R/V Arcticus pulls into port in Cheboygan, Michigan, after a day of sampling in Lake Huron during the annual fall forage cruise. Photo credit: Cory Brant, USGS.
The USGS Great Lakes Science Center R/V Arcticus pulls into port in Cheboygan, Michigan, after a day of sampling in Lake Huron during the annual fall forage cruise. Photo credit: Cory Brant, USGS.
Publications by this scientist
Documentation of a probable spawning run of cisco Coregonus artedi in the Spanish River, Ontario, Canada
Impacts of artificial rearing on cisco Coregonus artedi morphology, including pugheadedness
Status and trends of pelagic and benthic prey fish populations in Lake Michigan, 2023
Gap analysis: A proposed methodology to describe and map historical and contemporary populations and habitats
A science and management partnership to restore coregonine diversity to the Laurentian Great Lakes
A pheromone antagonist liberates female sea lamprey from a sensory trap to enable reliable communication
Female sea lamprey shift orientation toward a conspecific chemical cue to escape a sensory trap
A pheromone outweighs temperature in influencing migration of sea lamprey
Timing is everything
A new clarification method to visualize biliary degeneration during liver metamorphosis in sea lamprey (Petromyzon marinus)
Odor-conditioned rheotaxis of the sea lamprey: Modeling, analysis and validation
Non-USGS Publications**
Brant, C.O., 2015. Characterization of sea lamprey pheromone components. Dissertation. Michigan State University.
Brant, C.O., 2011. From Synthesis to Behavioral Activity in Streams: Investigations of Putative Sea Lamprey Pheromone Components. Master’s thesis. Michigan State University.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Demographic, morphometric, and meristic data describing cisco (Coregonus artedi) captured in the Spanish River, Ontario, Canada, 15-16 November 2022
Traditional and geometric morphometric data describing wild and artificially reared cisco (Coregonus artedi) from lakes Huron and Ontario
Multimedia related to this scientist
The mysterious rocks and shoreline of Whitefish Point, Lake Superior. Photo credit: Cory Brant, USGS.
The mysterious rocks and shoreline of Whitefish Point, Lake Superior. Photo credit: Cory Brant, USGS.
A fall day at the Tahquamenon Upper Falls, Michigan. Photo credit: Cory Brant, USGS.
A fall day at the Tahquamenon Upper Falls, Michigan. Photo credit: Cory Brant, USGS.
USGS vessel crewmembers (GLSC; Cheboygan, Michigan) and science crew (GLSC; Ann Arbor, Michigan) heave out the cod end of a bottom trawl net during the 2023 fall prey fish assessment in Lake Michigan aboard the GLSC’s R/V Arcticus. Photo credit: Cory Brant, USGS.
USGS vessel crewmembers (GLSC; Cheboygan, Michigan) and science crew (GLSC; Ann Arbor, Michigan) heave out the cod end of a bottom trawl net during the 2023 fall prey fish assessment in Lake Michigan aboard the GLSC’s R/V Arcticus. Photo credit: Cory Brant, USGS.
Leaving Alpena for a day of Great Lakes science during the Lake Huron fall forage fish survey. Photo credit: Cory Brant, USGS.
Leaving Alpena for a day of Great Lakes science during the Lake Huron fall forage fish survey. Photo credit: Cory Brant, USGS.
A larval coregonine, collected by USGS scientists during the 2022 Cooperative Science and Monitoring Initiative survey on Lake Huron, is examined and identified using a stereo microscope and high-resolution camera. Photo credit: Cory Brant, USGS.
A larval coregonine, collected by USGS scientists during the 2022 Cooperative Science and Monitoring Initiative survey on Lake Huron, is examined and identified using a stereo microscope and high-resolution camera. Photo credit: Cory Brant, USGS.
The diversity of larval fishes from one 10-minute tow collected at the surface of Lake Huron by USGS scientists during the 2022 Lake Huron Cooperative Science and Monitoring Initiative survey. Photo credit: Cory Brant, USGS.
The diversity of larval fishes from one 10-minute tow collected at the surface of Lake Huron by USGS scientists during the 2022 Lake Huron Cooperative Science and Monitoring Initiative survey. Photo credit: Cory Brant, USGS.
A determined USGS research crew sets out on Lake Huron by small vessel to lift micromesh gillnets in search of elusive juvenile lake whitefish. Photo credit: Cory Brant, USGS.
A determined USGS research crew sets out on Lake Huron by small vessel to lift micromesh gillnets in search of elusive juvenile lake whitefish. Photo credit: Cory Brant, USGS.
Pancake ice forms near the landing at Harbor Beach, Michigan, while USGS scientists scout for locations to sample for larval fishes at the start of the 2022 Lake Huron Cooperative Science and Monitoring Initiative field sampling season. Photo credit: Cory Brant, USGS.
Pancake ice forms near the landing at Harbor Beach, Michigan, while USGS scientists scout for locations to sample for larval fishes at the start of the 2022 Lake Huron Cooperative Science and Monitoring Initiative field sampling season. Photo credit: Cory Brant, USGS.
USGS leads the way out on a frozen Muskegon Lake to sample ciscoes with hook and line for morphometrics and acoustic telemetry projects. Photo credit: Cory Brant, USGS.
USGS leads the way out on a frozen Muskegon Lake to sample ciscoes with hook and line for morphometrics and acoustic telemetry projects. Photo credit: Cory Brant, USGS.
A cisco (Coregonus artedi) collected by Dr. Walter Koelz on August 20, 1920, in Lake Michigan is photographed and measured by USGS scientists at the University of Michigan Research Museums Center over 100 years later. Photo credit: Cory Brant, USGS.
A cisco (Coregonus artedi) collected by Dr. Walter Koelz on August 20, 1920, in Lake Michigan is photographed and measured by USGS scientists at the University of Michigan Research Museums Center over 100 years later. Photo credit: Cory Brant, USGS.
A slimy sculpin (left) and deepwater sculpin (right), two native sculpin species in the Great Lakes, are compared side-by-side after capture in a bottom trawl during the Lake Huron fall forage survey aboard the R/V Arcticus. Photo credit: Cory Brant, USGS.
A slimy sculpin (left) and deepwater sculpin (right), two native sculpin species in the Great Lakes, are compared side-by-side after capture in a bottom trawl during the Lake Huron fall forage survey aboard the R/V Arcticus. Photo credit: Cory Brant, USGS.
A native deepwater sculpin, captured by bottom trawl in the Lake Huron depths off Cheboygan, Michigan, is held for a quick photo op during the USGS Great Lakes Science Center fall forage sampling cruise aboard the R/V Arcticus. Photo credit: Cory Brant, USGS.
A native deepwater sculpin, captured by bottom trawl in the Lake Huron depths off Cheboygan, Michigan, is held for a quick photo op during the USGS Great Lakes Science Center fall forage sampling cruise aboard the R/V Arcticus. Photo credit: Cory Brant, USGS.
The USGS Great Lakes Science Center R/V Arcticus pulls into port in Cheboygan, Michigan, after a day of sampling in Lake Huron during the annual fall forage cruise. Photo credit: Cory Brant, USGS.
The USGS Great Lakes Science Center R/V Arcticus pulls into port in Cheboygan, Michigan, after a day of sampling in Lake Huron during the annual fall forage cruise. Photo credit: Cory Brant, USGS.
Publications by this scientist
Documentation of a probable spawning run of cisco Coregonus artedi in the Spanish River, Ontario, Canada
Impacts of artificial rearing on cisco Coregonus artedi morphology, including pugheadedness
Status and trends of pelagic and benthic prey fish populations in Lake Michigan, 2023
Gap analysis: A proposed methodology to describe and map historical and contemporary populations and habitats
A science and management partnership to restore coregonine diversity to the Laurentian Great Lakes
A pheromone antagonist liberates female sea lamprey from a sensory trap to enable reliable communication
Female sea lamprey shift orientation toward a conspecific chemical cue to escape a sensory trap
A pheromone outweighs temperature in influencing migration of sea lamprey
Timing is everything
A new clarification method to visualize biliary degeneration during liver metamorphosis in sea lamprey (Petromyzon marinus)
Odor-conditioned rheotaxis of the sea lamprey: Modeling, analysis and validation
Non-USGS Publications**
Brant, C.O., 2015. Characterization of sea lamprey pheromone components. Dissertation. Michigan State University.
Brant, C.O., 2011. From Synthesis to Behavioral Activity in Streams: Investigations of Putative Sea Lamprey Pheromone Components. Master’s thesis. Michigan State University.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government