Literature tends to claim that gaper clams (Tresus capax) are virtually incapable of making new burrows when they are removed from their original homes. That might be valid for the large adult gapers, whose shells can reach over 20cm (about 8 inches) in length, but given enough time and some protection from predation, my juvenile specimens seem quite capable of reburying themselves. Compare the photo of the surface treatment group taken on the first day of the experiment (upper left) with one taken less than 6 days later (upper right). The object in the upper right photo that resembles an earthworm is part of a gaper's neck. The necks of Tresus capax have fused incurrent and excurrent siphons that allow food and water exchange with the clam's environment.
COSEE Pacific Partnerships PRIME Internship Program for Community College Students
Tuesday, July 6, 2010
sam - The Data Is in The Burrow
Literature tends to claim that gaper clams (Tresus capax) are virtually incapable of making new burrows when they are removed from their original homes. That might be valid for the large adult gapers, whose shells can reach over 20cm (about 8 inches) in length, but given enough time and some protection from predation, my juvenile specimens seem quite capable of reburying themselves. Compare the photo of the surface treatment group taken on the first day of the experiment (upper left) with one taken less than 6 days later (upper right). The object in the upper right photo that resembles an earthworm is part of a gaper's neck. The necks of Tresus capax have fused incurrent and excurrent siphons that allow food and water exchange with the clam's environment.
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