TY - RPRT TI - A national pilot study of mercury contamination of aquatic ecosystems along multiple gradients" Bioaccumulation in fish AU - William G. Brumbaugh AU - David P. Krabbenhoft AU - Dennis R. Helsel AU - James G. Wiener AU - Kathy R. Echols PY - 2001 UR - https://pubs.usgs.gov/publication/bsr20010009 ID - bsr20010009 ER -