Status and biology of black crappie and white crappie in the Lower Willamette River near Portland, Oregon
By: David L. Ward, Christopher J. Knutsen, Ruth A. Farr.
Contributors: Knutsen, Christopher J.; Farr, Ruth A.; Oregon. Fish Division.
Series: Information reports / Fish Division, Oregon Department of Fish and Wildlife -- no. 91-3.; Information reports (Oregon. Fish Division) -- no. 91-3.
Publisher: Oregon Dept. of Fish and Wildlife
Published: 1991
Place of publication: Portland, Or
Language: eng
Number of pages: 17
Subjects: Black crappie -- Oregon -- Willamette River.; White crappie -- Oregon -- Willamette River.; Crappie -- Oregon -- Willamette River.
Notes: "July 1991."

Includes bibliographical references (p. 16-17).