Great Lakes Science Center

The Hammond Bay Biological Stationi. See our Locations page for more information.

The Cheboygan Vessel Base. Please see our Locations page for more information.

Quadrat for sampling cladophora with gobies swimming around. There is another quadrat in the distance for a different sampling site.
 

Diver point of view from above the dive camera system. This is a transect over rocky substrate with some cladophora on the bottom of Lake Ontario.
 

Cladophora sampling site with brick marker and quadrat. Divers put cladophora samples from inside quadrat into bags to take back to the lab.
 

Diver completing a transect with the dive camera while another diver stands on the center pivot to keep it upright. The transect is a circle and is being controlled with the line attached to the pivot.
 

Diver travelling along the surface of the lake along with the dive camera system. The crew on the boat are there to meet the divers along with pulling the center pivot back onto the boat with the help of the davit.
 

Smallmouth bass swimming near lake bottom. The camera pans up a couple times to show the center pivot where the diver is holding on.
 

The camera glances at the bottom of the boat above and then pans down to the lake bottom. The lake bottom is covered in tons of round gobies swimming around in and out of the cladophora. Again the camera pans up to show a diver and the dive camera completing a transect in the distance.
 

Smallmouth bass swimming in front of the dive camera system during a transect. Camera system is attached to the center pivot by a line in order to follow around in a circle.
 

Descending to the lake bottom to get ready for transects with the camera system and cladophora sampling. Organizing quadrats and sampling bags near the center pivot before sampling.