Spatial distributions of Pacific herring, Clupea pallasi, and walleye pollock, Theragra chalcogramma, in Prince William Sound, Alaska

Nursery areas of Pacifi c herring, Clupea pallasi, and walleye pollock, Theragra chalcogramma, were identifi ed by using acoustic surveys in October 1995, and in March and July 1996 in Prince William Sound, Alaska. Pacifi c herring and walleye pollock were aggregated in the east-northeast and west-southwest areas. Juvenile Pacifi c herring spent the fi rst two years of their lives isolated within bays. Water tem- peratures within bays were...