The Secchi Disk is a 12-inch black and white plate attached to a rope or chain and lowered into a body of water until it is no longer visible. The depth at which the disk can no longer be seen is ...

CONNECTED TO THE VATICAN. I THINK THAT THE SKI DISC IS A REALLY VALUABLE TOOL BECAUSE IT’S SO EASY FOR PEOPLE TO UNDERSTAND THIS TEN INCH WHITE PLATE HAS A SIMPLE DESIGN. KNOWN GLOBALLY AS THE SKI ...

In celebration of Lakes Appreciation Month, the annual Secchi Dip-In will be held from 10 a.m. to noon July 31 at Loch Lomond Reservoir. The public is invited to this outdoor, family-friendly event to ...

Bob Lewis is proud of the award he carries with him in his boat. The avid angler and boater has taken part in every Secchi Day event at Beaver Lake since it started in 2006. The Beaver Water District ...

Richard Kirby is a Marine Institute Research Fellow at Plymouth University and the Secchi Disk study's project leader. Phytoplankton are the microscopic plant-like cells that float in the sea’s sunlit ...