@misc{indiciaec40f71cb347b,
  title = {Mercury contamination of aquatic ecosystems},
  author = {David P. Krabbenhoft and David A. Rickert},
  year = {1995},
  doi = {10.3133/fs21695},
  url = {https://pubs.usgs.gov/publication/fs21695},
  note = {Source identifier: fs21695}
}