Use of rocky intertidal habitats by juvenile pollock Pollachius virens

Abstract

At least part of the pollock population migrated across the full width of the intertidal zone (150 m) each tide. A large influx of pollock moved in from the subtidal zone at low tidal stages and then dispersed into intertidal habitats at high tidal stages. Abundances likely increased in the algal habitat at higher tidal stages. Densities were higher at night and there was an order of magnitude decline in pollock densities from early to late summer. Pollock fed on invertebrates from intertidal algae relatively continuously. -from Authors