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June 6, 2014
DDDB 508 urchins diseased

Sea Urchin Calcium Carbonate shell broken down by electromagnetically polarized water from microwave radiation (Dopplers and other microwave/RF)

The lower half of a sea urchin’s body is referred to as the oral surface, because it contains the mouth, while the upper half is the aboral surface. The internal organs are enclosed in a hard test or shell composed of fused plates of calcium carbonate covered by a thin dermis andepidermis.

Large-scale die-off of sea urchins discovered off Kaumakani

PORT ALLEN — While conducting a recent diving tour along Kaua‘i’s southern coast, a diver made an alarming discovery: a field of dead heart sea urchins on the ocean floor.

“It’s a massive die off of urchins,” said Linda Marsh, owner of Bubbles Below Kaua‘i dive company. “This is a dive site we normally go to, and this die off is a sudden thing. We have seen evidence of it miles away.”

Marsh, the veteran diver who made the find, called in a report on Feb. 3 to Don Heacock, Kaua‘i’s biologist for the state Department of Land and Natural Resources Division of Aquatic Resources and to Thierry Work, wildlife disease specialist for the U.S. Geological Survey’s National Wildlife Health Center in Honolulu.

“We’re always concerned when urchins die because of what happened in the Caribbean,” Work said. “The Caribbean has lost 80 percent of its coral. The massive coral die off was preceded by a massive die off of urchins. They are a keystone species and an early warning system for large-scale changes in the ocean.”

From → Biology, Geophysics

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