At the Middle Island Sinkhole, TBNMS diver Joe Hoyt, sets up a respiration chamber experiment near the purple microbial mats.

At the Middle Island Sinkhole, TBNMS diver Joe Hoyt sets up a respiration chamber experiment near the purple microbial mats. Image Courtesy of Tane Casserley, NOAA 2007.

 

Related Links

Thunder Bay Sinkholes 2008

Thunder Bay Sinkholes 2008: Sept 11 Log

NOAA Ocean Explorer Gallery

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