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Biol Bull 123: 388-395. (October 1962)
© 1962 Marine Biological Laboratory
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INFLUENCE OF HOSTS ON THE BEHAVIOR OF THE COMMENSAL CRAB PINNOTHERES MACULATUS SAY

A. N. SASTRY 1 and R. WINSTON MENZEL 1

1 Oceanographic Institute, Florida State University, Tallahassee, Florida

1. Experiments using a circular choice apparatus showed a statistically significant attraction of commensal crabs, Pinnotheres maculatus, to bay scallops, Aequipecten irradians concentricus, and penshells, Atrina rigida.

2. The adult males of P. maculatus removed from bay scallops showed a significant attraction to the host.

3. When tested for preference between the two hosts, crabs removed from bay scallops showed no preference for one host over the other. The attraction of crabs to both the hosts was statistically significant. Experiments suggested that the crabs removed from scallops are not host-specific.






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Copyright © 1962 by the Marine Biological Laboratory.