Decline of fish catch in Switzerland

Abstract

Fish catch, especially of brown trout, has decreased by about 50% over the last 15 years in many Swiss rivers and streams. In addition, the health status of brown trout has been reported to be impaired in many streams. In order to evaluate the causes of these phenomena, the project "Fishnet" was launched in 1998. We present an overview of the concepts and… (More)
DOI: 10.1007/s00027-002-8053-1

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