 | Up a level |
Zimmerli, Simone; Bernet, Daniel; Burckhardt-Holm, P; Schmidt-Posthaus, Heike; Volanthen, P; Wahli, Thomas; Segner, Helmut (2007). Assessment of fish health status in four Swiss rivers showing a decline of brown trouth catches. Aquatic Sciences, 69(1), pp. 11-25. Basel: Birkhäuser-Verlag; www.birkhäuser.ch 10.1007/s00027-006-0844-3
