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The Private, Exclusive Guide for Serious Divers Since 1975
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May 2023    Download the Entire Issue (PDF) Vol. 49, No. 5   RSS Feed for Undercurrent Issues
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Flotsam & Jetsam

from the May, 2023 issue of Undercurrent   Subscribe Now

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Blue Heron Magic. Diving under the Blue Heron Bridge, which leads from Riviera Beach to Singer Island at the Phil Foster Memorial Park, is a favorite dive site for macro-life lovers, who also see moray eels, horseshoe crabs, lobsters, octopus, and plenty of tropical fish. But divers and snorkelers on April 10 had a stunning treat when sailfish appeared at high tide to charge after baitfish. For the best diving, enter the water about 40 minutes before high tide and watch out for fishing lines.

What Makes Some Water So Vibrantly Turquoise?New Allies in the Crown-of-Thorns Battle. The crown-of-thorns starfish has devasted large sections of the Great Barrier Reef, with its only predator being the triton, which are few and far between. University of Queensland researchers have wondered why some sections of the reef are unaffected by the crown-of-thorns when other parts are devastated. Ph.D. candidate Amelia Desbiens, in laboratory studies, has discovered the red decorator crab devours more than five juvenile crown-of-thorns daily, and seems to keep some areas of the reef nearly free of them....

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