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Filtering by: Creator Suzuki, Yasuko

Piscivorous colonial waterbirds in the Columbia River estuary : demography, dietary contaminants, and management

Creator:

Suzuki, Yasuko

Abstract:

Caspian terns (Hydroprogne caspia) and double-crested cormorants (Phalacrocorax auritus) nest in large colonies on East Sand Island in the Columbia River estuary, the largest known colonies for the two species in the world. Both species of piscivorous colonial waterbirds have been identified as predators with a significant impact on the...

Resource Type:

Dissertation

Full Text:

AN ABSTRACT OF THE DISSERTATION OF Yasuko Suzuki for the degree of Doctor of Philosophy in Wildlife
Developing Nondestructive Techniques for Managing Conflicts Between Fisheries and Double-Crested Cormorant Colonies

Creator:

Suzuki, Yasuko, Roby, Daniel D., Lyons, Donald E., Courtot, Karen N., and Collis, Ken

Abstract:

Double-crested cormorants (Phalacrocorax auritus) have been identified as the source of significant mortality to juvenile salmonids (Oncorhynchus spp.) in the Columbia River Basin. Management plans for reducing the size of a large colony on East Sand Island (OR, USA) in the Columbia River estuary are currently being developed. We evaluated...

Resource Type:

Article

Full Text:

Techniques for Managing Conflicts Between Fisheries and Double-Crested Cormorant Colonies YASUKO SUZUKI,1