Sediment selection by juvenile sea scallops (Placopecten magellanicus (gmelin)), sea stars (Asterias vulgaris verrill) and rock crabs (Cancer irroratus say).

From: Journal of Shellfish Research | Date: December 1, 2006| Author: Barbeau, Myriam A.; Wong, Melisa C.; Wright, Lisa D. | Copyright information

ABSTRACT We examined sediment selection by juvenile sea scallops (Placopecten magellanicus) and their predators, sea stars (Asterias vulgaris) and rock crabs (Cancer irroratus). In laboratory trials, groups of scallops (~30 mm shell height) were simultaneously offered four sediment types in the presence and absence of a sea star or a rock crab: (1) glass representing a homogeneous, hard bottom; (2) sand; (3) granule and (4) pebble. As well, individual predators were offered the fou...

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