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Images

Images captured by GLSC scientists while working in and around the Great Lakes.

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Researcher teaching a fish identification class
Teaching Early Life History and Fish Identification
Teaching Early Life History and Fish Identification
Teaching Early Life History and Fish Identification

GLSC’s Stacey Ireland and attendees reviewing a larval fish identification at the OMNRF Field Office in Wheatley, Ontario. Photo Credit: Robin DeBruyne, USGS.

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, showing off their toothy, sucking mouths
Sea lampreys in a tank
Sea lampreys in a tank
Sea lampreys in a tank

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.

Young Sea Lamprey on a table for examination
First Lab-Reared Transformer
First Lab-Reared Transformer
First Lab-Reared Transformer

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.

Researcher uses a headlamp to illuminate a steel bowl with yellow fish eggs being fertilized
Fertilizing Cisco Eggs
Fertilizing Cisco Eggs
Fertilizing Cisco Eggs

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.

Two researchers working on the stern of a vessel with a sunset in the background and spooled trawl net in the foreground
Late Night Ahead
Late Night Ahead
Late Night Ahead

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.

The Toronto skyline seen from Lake Ontario
Toronto at Sunset from Humber Bay
Toronto at Sunset from Humber Bay
Toronto at Sunset from Humber Bay

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 been visiting a pair of purple asters in a garden
Well I’ll Bee Leaving my DNA
Well I’ll Bee Leaving my DNA
Well I’ll Bee Leaving my DNA

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.

Large research vessel passing by a raised bridge as it leaves port
Sturgeon Under the Bridge
Sturgeon Under the Bridge
Sturgeon Under the Bridge

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.

Researchers onboard a vessel separating lake trout from a gillnet on a steel table, net lifter and port in background
Untangling Lake Trout Like a Boss
Untangling Lake Trout Like a Boss
Untangling Lake Trout Like a Boss

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.

Researchers throw a buoy attached to a long gillnet over the stern of a large research vessel
Toss the Flag
Toss the Flag
Toss the Flag

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.

Filtering equipment filled with washings from a chemical process in a line on a laboratory bench
Filter the Rainbow
Filter the Rainbow
Filter the Rainbow

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.

Researchers stand on the bow of a large research vessel on a dark cloudy morning
Brisk Morning Air
Brisk Morning Air
Brisk Morning Air

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.

Researcher holds a juvenile lake sturgeon the size of his hand
Juvenile Lake Sturgeon
Juvenile Lake Sturgeon
Juvenile Lake Sturgeon

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.

Researcher wearing safety gear sorting prey fish on a steel table onboard the R/V Sturgeon
Sorting Fish
Sorting Fish
Sorting Fish

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.

Researchers on the stern of a vessel emptying a trawl net of small fish into bins
First Tow of Lake Huron Fall Prey Fish Survey
First Tow of Lake Huron Fall Prey Fish Survey
First Tow of Lake Huron Fall Prey Fish Survey

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.

A beach covered in cobble stones looking toward the water during stormy seas
Whitefish Point Rocks
Whitefish Point Rocks
Whitefish Point Rocks

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 waterfall on a long river, fall colors beginning to appear on the trees along the banks
Falls in the Fall
Falls in the Fall
Falls in the Fall

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. 

Man jumps as he walks away from the camera along a dirt trail
Soaring for Science
Soaring for Science
Soaring for Science

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.

Two researchers work on small flower specimens at a long work-bench
Dynamic Duo
Dynamic Duo
Dynamic Duo

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 are arranged on a table with a measuring board
Artedi on Board
Artedi on Board
Artedi on Board

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.

Crewmen on a research vessel use spotlights at night to aid navigation in a tight inlet
Navigator
Navigator
Navigator

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.

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