TY - RPRT TI - Observer error structure in bull trout redd counts in Montana streams: Implications for inference on true redd numbers AU - Clint C. Muhlfeld AU - Mark L. Taper AU - David F. Staples AU - Bradley B. Shepard PY - 2011 DO - 10.1577/t05-129.1 UR - https://pubs.usgs.gov/publication/70160239 ID - 70160239 ER -