TY - RPRT TI - Colorado River fish monitoring in Grand Canyon, Arizona; 2002–14 humpback chub aggregations AU - William R. Persons AU - David R. Van Haverbeke AU - Michael J. Dodrill PY - 2017 DO - 10.3133/ofr20161177 UR - https://pubs.usgs.gov/publication/ofr20161177 ID - ofr20161177 ER -