Abstract
Abstract A 28-foot gillnetter was modified to catch juvenile salmon and steelhead trout by purse seining in the estuary of the Columbia River. This vessel and equipment enabled effective sampling with relative economy, practicality, and safety. The main limitation was the lack of space for handling fish. Juvenile salmon and steelhead trout comprised the majority of the catch. Also taken in large numbers were surf smelt, American shad, northern anchovy, and longfin smelt in brackish water and peamouth in fresh water. The incidental catch included cutthroat trout, Pacific herring, eulachon, threespine stickleback, carp, shiner perch, starry flounder, and largescale sucker.
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