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Alvin dive 3795

Alvin dive 3795
Alvin dive 3795
Alvin dive 3795
Alvin dive 3795
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Alvin dive 3795
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06/02/2002
alvin/alvin_3795/2002_06_02_16_19_54.jpg
Image of The Day caption:
Giant clams up to one foot long thrive in the crevices around seafloor pillow lava, which vent hydrothermal fluids with chemical nutrients. This vent site in the Pacific on the Galápagos Rift was discovered in 2002 and is called Calyfield after the clam (Calyptogena magnifica). The 2002 expedition was the first time NOAA Ocean Exploration sponsored work around the Galapagos. WHOI biologist Tim Shank recently completed another expedition to the region to to explore newly discovered signs of black smoker hydrothermal vents, to re-visit the oldest known vent fields, and to examine nearby sulfide mounds, deep fracture zones, and seamounts.
Caption from Oceanus magazine, Vol. 51, No. 1, pg. 67:
... Iconic animals from Alvin's visits to seafloor vents.
Scientists were astonished to see huge clams living at a depth where they thought no large life could exist. The giant white vent clams (Calyptogena magnifica), reaching up to a foot long, were first seen in 1977 at the Galápagos Rift in the Pacific Ocean.
Photo courtesy of Woods Hole Oceanographic Institution Archives
© Woods Hole Oceanographic Institution
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