GLSC’s Stacey Ireland and attendees reviewing a larval fish identification at the OMNRF Field Office in Wheatley, Ontario. Photo Credit: Robin DeBruyne, USGS.
Images
Images captured by GLSC scientists while working in and around the Great Lakes.

GLSC’s Stacey Ireland and attendees reviewing a larval fish identification at the OMNRF Field Office in Wheatley, Ontario. Photo Credit: Robin DeBruyne, USGS.
Sea lampreys in a tank at the Great Lakes Fishery Commission. Sea lampreys are a parasitic invasive species in the Great Lakes.
Sea lampreys in a tank at the Great Lakes Fishery Commission. Sea lampreys are a parasitic invasive species in the Great Lakes.
Photo of the first ever sea lamprey reared in the laboratory at the USGS Hammond Bay Biological Station (GLSC; Millersburg, MI) to undergo transformation (metamorphosis), which entails moving from the larval life stage to the parasitic life stage. Photo credit: Trisha Searcy, USGS.
Photo of the first ever sea lamprey reared in the laboratory at the USGS Hammond Bay Biological Station (GLSC; Millersburg, MI) to undergo transformation (metamorphosis), which entails moving from the larval life stage to the parasitic life stage. Photo credit: Trisha Searcy, USGS.
USGS researchers (GLSC; Cortland and Oswego, New York) fertilize cisco (Coregonus artedi) eggs from adults captured in Chaumont Bay, Lake Ontario that were transported to Little Sodus Bay, Lake Ontario and seeded on cleaned substrate within the bay. Photo credit: Marc Chalupnicki, USGS.
USGS researchers (GLSC; Cortland and Oswego, New York) fertilize cisco (Coregonus artedi) eggs from adults captured in Chaumont Bay, Lake Ontario that were transported to Little Sodus Bay, Lake Ontario and seeded on cleaned substrate within the bay. Photo credit: Marc Chalupnicki, USGS.
USGS marine maintenance repairer and ship operator (GLSC; Cheboygan, Michigan) ready the trawl doors at sunset as the R/V Sturgeon heads out for a night of work to search for ciscos (Coregonus artedi) on Lake Huron. Photo credit: Patty Dieter, USGS.
USGS marine maintenance repairer and ship operator (GLSC; Cheboygan, Michigan) ready the trawl doors at sunset as the R/V Sturgeon heads out for a night of work to search for ciscos (Coregonus artedi) on Lake Huron. Photo credit: Patty Dieter, USGS.
Toronto's skyline at sunset from Humber Bay in Lake Ontario. Photo credit: Alden Tilley, USGS.
Toronto's skyline at sunset from Humber Bay in Lake Ontario. Photo credit: Alden Tilley, USGS.
A honey bee (genus Apis) observed visiting an aster; a great observation for potential environmental DNA that can be recovered. Photo credit: Leslie Reyes, USGS Contractor.
A honey bee (genus Apis) observed visiting an aster; a great observation for potential environmental DNA that can be recovered. Photo credit: Leslie Reyes, USGS Contractor.
The GLSC’s R/V Sturgeon leaves Charlevoix, Michigan at the end of a lake trout spawner gillnet survey on Lake Michigan to head home to the Cheboygan Vessel Base (GLSC; Cheboygan, Michigan). Photo credit: Patty Dieter, USGS.
The GLSC’s R/V Sturgeon leaves Charlevoix, Michigan at the end of a lake trout spawner gillnet survey on Lake Michigan to head home to the Cheboygan Vessel Base (GLSC; Cheboygan, Michigan). Photo credit: Patty Dieter, USGS.
USGS science staff (GLSC; Ann Arbor, Michigan) and vessel crewmembers (GLSC; Cheboygan, Michigan) picking lake trout (Salvelinus namaycush) out of a gillnet during the 2023 Lake Michigan Northern Refuge lake trout spawner survey aboard the GLSC’s R/V Sturgeon. Photo credit: Ben Leonhardt, USGS.
USGS science staff (GLSC; Ann Arbor, Michigan) and vessel crewmembers (GLSC; Cheboygan, Michigan) picking lake trout (Salvelinus namaycush) out of a gillnet during the 2023 Lake Michigan Northern Refuge lake trout spawner survey aboard the GLSC’s R/V Sturgeon. Photo credit: Ben Leonhardt, USGS.
A USGS technician (GLSC; Ann Arbor, Michigan) throws the gillnet buoy flag overboard during a fall gillnet survey on Lake Michigan aboard the GLSC’s R/V Sturgeon. Photo credit: Patty Dieter, USGS.
A USGS technician (GLSC; Ann Arbor, Michigan) throws the gillnet buoy flag overboard during a fall gillnet survey on Lake Michigan aboard the GLSC’s R/V Sturgeon. Photo credit: Patty Dieter, USGS.
Colorful elutriates (washings) from processed fresh flower samples as part of a Bipartisan Infrastructure Law-funded pollinator project (GLSC; Chesterton, Indiana). Photo credit: Leslie Reyes, USGS Contractor.
Colorful elutriates (washings) from processed fresh flower samples as part of a Bipartisan Infrastructure Law-funded pollinator project (GLSC; Chesterton, Indiana). Photo credit: Leslie Reyes, USGS Contractor.
Two USGS science technicians (GLSC; Ann Arbor, Michigan) and the ship operator (GLSC; Cheboygan, Michigan) take in the early morning scenery as the R/V Sturgeon heads out for a day of setting gillnets in the Northern Refuge of Lake Michigan. Photo credit: Patty Dieter, USGS.
Two USGS science technicians (GLSC; Ann Arbor, Michigan) and the ship operator (GLSC; Cheboygan, Michigan) take in the early morning scenery as the R/V Sturgeon heads out for a day of setting gillnets in the Northern Refuge of Lake Michigan. Photo credit: Patty Dieter, USGS.
Juvenile lake sturgeon (Acipenser fulvescens) caught in a sea lamprey net in November 2023 in the Sturgeon River in northern Michigan. Photo credit: Ed Benzer, USGS.
Juvenile lake sturgeon (Acipenser fulvescens) caught in a sea lamprey net in November 2023 in the Sturgeon River in northern Michigan. Photo credit: Ed Benzer, USGS.
A USGS research fisheries biologist (GLSC; Ann Arbor, Michigan) examines the catch from waters around Goderich, Ontario during the Lake Huron fall prey fish survey aboard the GLSC’s R/V Sturgeon. Photo credit: Kristy Phillips, USGS.
A USGS research fisheries biologist (GLSC; Ann Arbor, Michigan) examines the catch from waters around Goderich, Ontario during the Lake Huron fall prey fish survey aboard the GLSC’s R/V Sturgeon. Photo credit: Kristy Phillips, USGS.
USGS vessel crewmembers (GLSC; Cheboygan, Michigan) and science staff (GLSC; Ann Arbor, Michigan) aboard the GLSC’s R/V Sturgeon open the cod end of a full bottom trawl net to examine the catch during an annual Lake Huron fall prey fish survey. Photo credit: Kristy Phillips, USGS.
USGS vessel crewmembers (GLSC; Cheboygan, Michigan) and science staff (GLSC; Ann Arbor, Michigan) aboard the GLSC’s R/V Sturgeon open the cod end of a full bottom trawl net to examine the catch during an annual Lake Huron fall prey fish survey. Photo credit: Kristy Phillips, USGS.
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.
A USGS intern (GLSC; Chesterton, Indiana) jumping high with his bag of recently collected flower samples. Photo credit: Jessica Oswald, USGS Contractor.
A USGS intern (GLSC; Chesterton, Indiana) jumping high with his bag of recently collected flower samples. Photo credit: Jessica Oswald, USGS Contractor.
USGS researchers (GLSC; Chesterton, Indiana) spiking chrysanthemums with DNA prior to a simulated rainfall as part of an environmental DNA degradation experiment. Photo credit: Zachary Hatfield, USGS Contractor.
USGS researchers (GLSC; Chesterton, Indiana) spiking chrysanthemums with DNA prior to a simulated rainfall as part of an environmental DNA degradation experiment. Photo credit: Zachary Hatfield, USGS Contractor.
Cisco (Coregonus artedi) and an assortment of prey fish caught in the North Channel of Lake Huron. Photo credit: Kristy Phillips, USGS.
Cisco (Coregonus artedi) and an assortment of prey fish caught in the North Channel of Lake Huron. Photo credit: Kristy Phillips, USGS.
USGS Cheboygan Vessel Base crew (GLSC; Cheboygan, Michigan) and GLSC science staff (Ann Arbor, Michigan) assist the R/V Sturgeon vessel captain through dark waters of the Byng Inlet after completing a long night of hydro-acoustic survey work in Georgian Bay, Canada. Photo credit: Kristy Phillips, USGS.
USGS Cheboygan Vessel Base crew (GLSC; Cheboygan, Michigan) and GLSC science staff (Ann Arbor, Michigan) assist the R/V Sturgeon vessel captain through dark waters of the Byng Inlet after completing a long night of hydro-acoustic survey work in Georgian Bay, Canada. Photo credit: Kristy Phillips, USGS.