Images

This SCUBA diver is using a camera integrated with a scooter running a circular transect. The white line attached to the scooter is also attached to a pivot point at the center of the sample area.

An integrated camera and scooter system is ready to deploy in Lake Ontario. The camera is used to record circular transects.

2019 GLB NOSB 1st Place Winner Troy High School.

Adaptive Management Forum Brochure.This conference was held at the University of California, Davis on February 5-6, 2019.

Lynn Ogilvie, a USGS biological science technician, adjusts an otolith under a microscope. Photographs of otoliths are taken using a camera mounted on top of the microscope and a video feed on the computer. Notice the magnified otolith on the screen in the background. This photo was taken in 2018, prior to the COVID-19 pandemic.

The USGS along with the Monterey Bay Aquarium Research Institute (MBARI) funded a pilot study to use a long-range AUV to study limnology of Lake Michigan. The AUV is pictured here being deployed in Lake Michigan to document variation in algae productivity at a whole-lake scale and compare 3-D spatial patterns in chlorophyll a to satellite estimates.

Carson Pritchard (left), a former GLSC contractor and 4-H camp counselor, shows off a Great Lakes Chinook salmon with a 4-H camper. Alewife are the primary forage of Chinook salmon. Consequently, understanding alewife age dynamics helps fishery managers balance predator numbers with the available prey.

Hundreds of alewife otoliths, all stored in separate vials, wait to be aged at the GLSC Lake Ontario Biological Station.

Grass Carp Eggs being examined under a microscope to determine developmental stage.

A Grass Carp larva captured during a survey in the Maumee River, a Lake Erie tributary. Grass Carp are an invasive species that consume vegetation destroying habitat used by other species.

First Arctic grayling caught by Nicole Watson (USGS) in Fairbanks, Alaska during her dissertation research at Michigan State University in 2018. Photo credit: Tom Watson.

State University of New York-Brockport graduate student, Tom Bianchi, interprets alewife otolith ages (foreground) while student contractor Scott Minihkiem (background) mounts otoliths in epoxy. Bianchi is evaluating how alewife age influences reproductive success and was trained in otolith techniques at the GLSC’s Lake Ontario Biological Station.

Dr. Patrick Kocovsky and Maddy Tomczak, University of Toledo student, look for Grass Carp lavae and eggs in the Sandusky River using a set of bongo nets, so named because they resemble bongo drums.  The nets are deployed one above the other so that one samples the surface water while the other samples deeper water.

Twenty-three state, tribal, and federal agencies and academic institutions throughout the Great Lakes region gathered in Traverse City, Michigan, in December 2018 for a prey fish age estimation workshop, co-hosted by GLSC.  This photo was taken in 2018, prior to the COVID-19 pandemic.

The underwater autonomous vehicle sitting in a parking lot before being deployed.

This is an autonomous underwate vehicle (AUV) deployed in the west arm or Grand Traverse Bay, Lake Michigan near Traverse City.

This is the autonomous underwater vehicle (AUV). Here, it is being tested in a hotel swimming pool.

Dr. Wendy Stott (GLSC) discusses the science carried out in the Ann Arbor aquatic research laboratory.

Phragmites australis on the Shore of Lake St. Clair, 2015

One of 1,695 repeat photographs taken to provide context for the classification of the Central Mojave Desert into various vegetation classes.

GLSC Director Russ Strach presents the 2018 GLSC Moffett Award to lead author Yu-Chun Kao for his 2017 paper, Evaluating Stocking Efficacy in an Ecosystem Undergoing Oligotrophication, with GLSC coauthors Mark Rogers and David “Bo” Bunnell.