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Rock Scallop
(Crassedoma giganteum) Rock Scallops may be found from British Colombia to Baja. They are common on rocky exposed outer coasts. |
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The Rock Scallop are filter feeders and rely on currents to bring plankton to them. Rock scallops are almost always found out of direct sunlight and normally have a covering of marine growth that makes them nearly indistinguishable in with the surrounding rock.
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All scallops are broadcast spawners.
They release eggs and sperm into the water at the same time.
In Central California Rock Scallops spawn in April.
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Once they grow to about an inch or so in diameter,
they then flap their way up into a rocky nook and begin to cement one shell to the rock.
Permanently affixed, scallops grow very slowly and may take 25 years to reach 5 to 10 inches
(12 to 25 cm) in diameter.
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