Let’s dive into the Lake Huron Sinkholes

A NSF funded, NOAA (TBNMS, GLERL) & NOF supported study

Can you find the groundwater on the

picture?

Groundwater

El Cajon Bay

Mats are large groups of microbes,

or microscopic organisms

Purple mat

Grass

Individual microbes

Individual blades of grass

Middle Island

WOW! That’s the size WOW! That’s the size of a football field!of a football field!

Hey, cool! I can see what the ROV is seeing on

this computer!

R.O.V. R.O.V. Remotely Operated Vehicle

ROV Footage

Diver Video of Middle Island

WOW!

M-ROVER Footage

Picture of a sinkhole

Microbes at a sinkhole

Dr. Bopi Biddanda

Dr. Biddanda with a sample from a sinkhole

Scientists studying

the sinkholes

EnergyPhotosynthesis

Energy

Chemosynthesis

Plants use

photosynthesis

to make energy!

NO SUN NEEDED!

Photosynthesis

Chemosynthesis

More Footage from our Adventure

A NSF funded, NOAA (TBNMS, GLERL) & NOF supported study

Presentation assembled and narrated by Amanda Callaghan, 2008

Institutional Support: GVSU, UW- Stout, NOAA, Thunder Bay National Marine Sanctuary, and the Noble Odyssey Foundation

Underwater Diver Photography: Russ Green, Luke Clyburn, and Tane Casserley

Underwater ROV videos: Steve Ruberg and Guy Meadows

Aerial Photography: Scott Kendall and Bopi Biddanda

Research: Bopi Biddanda, Scott Kendall, and T. Garry Sanders