This study explores the association of 24 polychaete species with sandy and muddy habitats located in a sub-arctic fjord, and across Atlantic Canada including Labrador, Newfoundland, and the Gulf of St. Lawrence. Key characters used to facilitate species identification are also summarized. Within Bo...

We studied the infestation of the burrowing polychaete Polydora rickettsi on the shells of Crepidula fecunda in relation to the degree of intertidal exposure in Yaldad Bay (Chile). 175 specimens of C.fecunda were collected from five stations located at tidal levels experiencing air exposures of 0, 2...

The reproductive cycles of the bivalves Ensis macha (Molina, 1782), Tagelus dombeii (Lamarck, 1818), and Mulinia edulis (King, 183 1) were studied at six sites in southern Chile (38-43degreesS) from November 1996 to December 1997. Samples of E. macha came from three subtidal shallow depths; those of...

The relative importance of predatory decapod crustaceans in sedimentary communities depends on the spatial variability in their abundance and composition. At the scale of a fjord, such spatial patterns could be related to sill-mediated larval supply. This study examines larval and adult distribution...

The collapse of the cod fishery in Newfoundland has coincided with marked increases in abundances of snow crab, pandalid shrimp, and other crustaceans that prey on sedimentary infauna. A 3-year sampling program in Bonne Bay, Newfoundland indicates differences in composition and number of these preda...

Naticid gastropod predators leave characteristic boreholes in the shells of their bivalve prey that allow the evaluation of spatial differences in occurrence and intensity of predation. This approach, extensively used in paleobiological research, was used to compare spatial variation in predation by...