Where have all the fish gone?

Both anglers and researchers have documented a dramatic decline in fish in Swiss streams and rivers. Patricia Burkhardt-Holm of the University of Basel; Walter Giger, Herbert Güttinger, Armin Peter, Karin Scheurer, and Marc J.-F. Suter with the Swiss Federal Institute of Aquatic Science and Technology (Eawag); Ueli Ochsenbein from Switzerland's Cantonal Laboratory for Soil and Water Protection; Helmut Segner at the University of Bern; and Erich Staub in the Swiss Agency for the Environment, Forests, and Landscape outline how they sorted through a number of theories and mounds of data to find the sources of the decline. © 2005 American Chemical Society.