Watch a video of the legendary and now threatened Coaster Brook Trout as several gather at a key spawning ground in the Lake Superior tributary Salmon Trout River. Notice how the fish hover at the edge of a sand strip. The sand covers what was until recently perfect habitat for laying eggs. But fish eggs do not survive in sand. Researchers at Michigan Technological University are making this video available to show why money is needed to vacuum the sand from essential and vanishing spawning habitat in the last, best Coaster Brook Trout spawning river, the Salmon Trout River. All they need is $10,000. To donate: superiorideas.org/projects/brook-trout.