Freshwater mussel shells (Unionidae) chronicle changes in a North American river over the past 1000years.

@article{Fritts2017FreshwaterMS,
  title={Freshwater mussel shells (Unionidae) chronicle changes in a North American river over the past 1000years.},
  author={Andrea K. Fritts and Mark W. Fritts and W. Haag and Jason A. DeBoer and Andrew F. Casper},
  journal={The Science of the total environment},
  year={2017},
  volume={575},
  pages={
          199-206
        }
}
The Illinois River was substantially altered during the 20th century with the installation of navigational locks and dams, construction of extensive levee networks, and degradation of water quality. Freshwater mussels were affected by these changes. We used sclerochronology and stable isotopes to evaluate changes over time in age-and-growth and food sources for two mussel species: Amblema plicata and Quadrula quadrula. Specimens were collected in years 1894, 1897, 1909, 1912, 1966, and 2013… CONTINUE READING