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Seafarer citizen scientist and yachtswoman Susie Goodall with a 30 cm diameter Secchi Disk and Fibreglass tape measure
© Secchi Disk
Sailors cruise ahead in a study of the oceans’ phytoplankton
Around the world, sailors and other seafarers are lowering 30 cm round white disks into the sea from the side of their boats to study the oceans phytoplankton.