174 Free Photos of Sea Lamprey

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Fish biologist Mary Henson looks looking for non-target species during a sea lamprey control treatment.

Sea lamprey crews must test the pH levels in each creek to determine how much lampricide to use for a treatment.

Lake trout with severe sea lamprey wounds

Lake Trout with sea lamprey wound in Lake Michigan

Biological Science Technician Tiffany Opalka-Myers helps out with a sea lamprey treatment on the St. Mary's River in upper Michigan.

pH water sample

Boardman River Barrier

Fisheries & Oceans Canad bayluscide treatment

Out the Boardman Ladder

Portable Office

Eel Ladder Research

Matt Symbal electrofishing the Rock River, Alger County, Michigan

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Boardman River Fish Ladder

Boardman River Fish Ladder

St. Mary's River Treatment Team

Looking good in those waders. Fish Biologists Shawn Nowicki, Cheryl Kaye and Mary Henson check sea lamprey traps in the Grand River, Ohio.

We are a science based agency. Determining pH levels in treatment streams allow crews to use the right amount of lampricide to target sea lampreys while minimizing non-target impacts.

Down the Boardman River Fish Ladder

Cory Racine, Biological Science Technician, and James Criger, Lead Physical Science Technician work to treat the St. Mary's River for sea lamprey in upper Michigan

Fish Biologist Cheryl Kaye analyzes non-target species to determine how to best treat streams for sea lamprey and minimize mortality to sensitive fish species.

Conneaut Creek, Pennsylvania

Bin O' lmaprey

Service Employee Shawn Nowicki Electrofishing

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Filtering water

Barrier Inspection

Conneaut Creek, Pennsylvania in the spring.

Recreation on Lake Superior

The Risk Assessment team: Fish Biologists Cheryl Kaye and Mary Henson inspect non-target mortality to ensure lampricides are effectively targeting sea lamprey with the lowest possible non-target mortality possible.

Janet McConnell checking samples of the river's pH to determine the level of lampricide to use in this treatment.

Testing the pH levels in Conneaut Creek.

Ludington Lighthouse on Lake Michigan

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Larval sample

Biological Science Technician Nick Steimel measures the amount of lampricide entering the stream to ensure its effective at targeting sea lampreys while minimizing impacts on non-target species.

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Miners River barrier inspection

Monitoring treatment

Lisa Dennis treating Ogontz River

Kevin Letson driving boat

Electrofishing Catch at Pendills Creek in Michigan

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Treating Ogontz River

Service Biological Science Technician, Cory Racine, is on the lookout for shallow waters in the St. Mary's

Seasonal employee Jesse Goodin-Mendoza checking Ogontz

Fish Biologist Cheryl Kaye during a non-target risk assessment collection.

Lake Superior

Lamprey in Arcata Field Office

Service Employee Matt Symbal electrofishing in Wislon Creek, a tributary to the Big Garlic River, Marquette County, MI.

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WINNER: Lamprey in Arcata Field Office

Biologist Chris Eilers from the Ludington Biological Station checks the feed rate during a lampricide application in the Manistique River

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Service Employees Dan Kochanski and Jamie Criger Administer a Granular Baylucide Treatment on the Boyne River in Michigan

Biological Science Technician, Nick Steimel, working at one of the remote treatment application sites.

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Fish Biologists Cheryl Kaye and Mary Henson identify non-target species collected in Fish Creek, a tributary of the Conneaut Creek.

Lampricide Control Physical Science Technician explains how the treatment works in the St. Mary's River

Biological Science Technician Dan Suhonen from the Marquette Biological Station prepares equipment for a lampricde application in the Manistique River

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Supervisory Fish Biologist Shawn Nowicki observing the Conneaut Creek for non-target species.

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Jenna Tews (L) and Shawn Nowicki (R) discuss treatment locations during the 2015 Conneaut Creek treatment.

The wounded lake trout from another angle

Biological Science Technician Chad Andresen from the Marquette Biological Station conducts a tailgate analysis to check lampricide concentrations during treatment of the Manistique River

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Biologist Jesse Haavisto (right) and Biological Science Technician Juliana Baker (left) from the Marquette Biological Station set out to spot-treat backwater areas

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Biological Science Technician Cassie Abrams from the Marquette Biological Station ensures an accurate lampricide application rate during a treatment of the Manistique River

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Lake Michigan near the Michigan and Canada Border

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Nik Rewald, Biological Science Technician, teaches Joanna Gilkeson, Public Affairs Specialist, how to electrofish for sea lamprey in Pendills Creek in upper Michigan.

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Physical Science Technician Justin Oster and Biological Science Technician Cassie Abrams discuss findings from water analyses during the lampricide treatment in the Manistique River

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Fish Biologists Cheryl Kaye, Shawn Nowicki and Mary Henson determining where to do non-target risk assessment collections in the Conneaut Creek tributaries.

Fish Biologist Cheryl Kaye, Supervisory Fish Biologist Shawn Nowicki and Fish Biologist Mary Henson identify non-target kill during the Conneaut Creek Treatment in Pennsylvania.

Fish Biologist Mary Henson takes a water sample during a study designed to determine lampricide concentrations in sediment and water at Hog Island Creek

Lake Superior intersects with Pendills Creek in the Upper Peninsula of Michigan

Service employee Mary Henson and Hanna Mello (USGS - LaCrosse), at Hog Island Creek, filling trays with silty sediment to be used in a study to determine the amount of lampricide in sediment and water

Pacific Lamprey

USFWS Dave Tilton discusses sea lamprey control with media

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USFWS Dave Tilton discusses sea lamprey control with media

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Pacific Lamprey Cling

Brad Young, Dan Ashe and a Sea Lamprey

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Dan Ashe, Deb Rocque and a Sea Lamprey!

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Gathered to see sea lamprey

Novak shows sea lamprey

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