TY - RPRT TI - Environmental enrichment in steelhead (Oncorhynchus mykiss) hatcheries: Field evaluation of aggression, foraging, and territoriality in natural and hatchery fry AU - C.P. Tatara AU - S.C. Riley AU - J.A. Scheurer PY - 2008 DO - 10.1139/f08-004 UR - https://pubs.usgs.gov/publication/70032190 ID - 70032190 ER -