TY - RPRT TI - Imaging fall Chinook salmon redds in the Columbia River with a dual-frequency identification sonar AU - K.F. Tiffan AU - D.W. Rondorf AU - J.J. Skalicky PY - 2004 DO - 10.1577/1548-8675(2004)24<1421:ifcsri>2.0.co;2 UR - https://pubs.usgs.gov/publication/70026384 ID - 70026384 ER -