TY - RPRT TI - 2013 update on sea otter studies to assess recovery from the 1989 Exxon Valdez oil spill, Prince William Sound, Alaska AU - Brenda E. Ballachey AU - Daniel H. Monson AU - George G. Esslinger AU - Kimberly A. Kloecker AU - James L. Bodkin AU - Lizabeth Bowen AU - A. Keith Miles PY - 2014 DO - 10.3133/ofr20141030 UR - https://pubs.usgs.gov/publication/ofr20141030 ID - ofr20141030 ER -