Great Lakes Science Center

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Grass carp larvae
December 31, 2019

Grass carp larvae

These images show grass carp larvae from the Maumee River. Characteristics of larval grass carp include overall length (left), skeletal muscle development (center) and presence of an eye spot that lacks pigmentation (right; pigment starting to develop on lower eye).

Scientists aboard research vessel Muskie and a sediment cross section (right)
September 30, 2019

New Technology for Scanning Sediment

(Left) EPA and Kent State University scientists (left-to-right), Dr. Janet Nestlerode, Taylor Michael, and Dr. Elizabeth Hinchey, on the R/V Muskie with the SPI cam. (Right) High-resolution image of a cross-section of the sediment including the sediment water interface to ~25 cm below surface from a site in the central basin of Lake Erie. Visible are various strata of the

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Pectoral Spine Cross Section
September 20, 2019

Aging a Fish Using a Spine

A pectoral spine cross section from invasive grass carp captured in the Great Lakes. These cross sections are used to determine the age of the fish.

Fish Vertebra Cross Section
September 20, 2019

Aging a Fish Using a Vertebra Cross Section

Cross section of a fish vertebra. Useful for determining the age of a fish.

Dr. Ed Roseman speaking at AOC meeting in Cleveland
September 11, 2019

Dr. Ed Roseman Delivers Plenary Address to AOC Meeting in Cleveland

GSLC research fish biologist, Dr. Ed Roseman, delivers a plenary address at the Great Lakes Areas of Concern (AOC) conference on September 11-12, 2019.

National Geographic photographer at HBBS
September 11, 2019

National Geographic Visits Hammond Bay to Photograph Sea Lamprey

National Geographic photographer, Keith Ladzinski, photographs live sea lamprey at Hammond Bay Biological Station on September 11, 2019 for an expansive article featuring the Great Lakes.

Releasing a Lake Sturgeon
July 5, 2019

Seneca River Lake Sturgeon Release

A 59 lb., 64 in. female lake sturgeon is released into the Seneca River after telemetry tagging. Pictured GLSC (Cortland, New York) personnel are Grant Scholten, Marc Chalupnicki, and Caleb Konrad.

DOI Newswave Publication Cover
June 30, 2019

DOI Newswave Publication Summer 2019 Cover

The cover image for the Summer 2019 DOI Newswave issue.

OH K-12 teachers Learning About Watersheds
June 25, 2019

Teaching the Teachers in Ohio

USGS worked with regional partners to provide Ohio K-12 teachers educational resources to teach about watersheds in their classrooms. 

Hammond Bay Biological Station Field Work Collage
June 3, 2019

Voice of America Visits Hammond Bay Biological Station

GLSC Hammond Bay Biological Station research was filmed by Voice of America (VOA) News on June 2-3, 2019. Clockwise from top right: VOA videographer, Ailin Li, interviewing Scott Miehls, USGS; live sea lamprey; videography team at the Ocqueoc River sea lamprey barrier and trap, (L-R) Nathan Allen, GLFC, Josh Benson, Andrea Miehls, GLFC/USGS, Ed Benzer, FWS, Ailin Li, VOA,

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Sea Lamprey
May 30, 2019

Sea Lamprey

 A Sea Lamprey

Acoustic Telemetry Used to Track Fish
May 30, 2019

Acoustic Telemetry Used to Track Fish

Staff from the USGS Great Lakes Science Center gaze at the Mackinac Bridge rising above the mist in the Straits of Mackinac, Michigan. The lines they are holding are attached to grappling hooks being used to retrieve acoustic telemetry equipment anchored on the bottom of the straits. The equipment is used to track fish movements in the Great Lakes and was deployed as part

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