Sailors Cruise Ahead in a Study of the Oceans’ Phytoplankton
Around the world, sailors and other seafarers, including Ocean Cruising Club (OCC) members, are lowering round, 30cm white disks into the sea from the sides of their boats to study the oceans’ phytoplankton. The disk the seafarers are using is called a Secchi Disk and it is named after the Pope’s astronomer who invented it …
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