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Sea Sawdust Black Water Dive 6-20-15-5929.jpg

Species of the single-celled phytoplankton Trichodesmium, Sea Sawdust , Black Water Dive 6-20-15 with Pura Vida Divers on the Siren out of Riviera Beach, over 400' depth Gulfstream current,Species of the single-celled phytoplankton Trichodesmium form colonies with distinctive shapes. Individual colonies, shown here, are visible to the naked eye; where currents and winds gather many colonies together, the aggregation