Life-history evolution, biology and conservation of stream fish: introductory note

The central problems of ecology at the end of the twentieth century are posed in an acute form by stream fishes. The presentations at the Symposium on the Ecology of Stream Fish: State of the Art and Future Prospects held at Luarca, Spain, in April 1998 illustrated the many facets of these problems. In the sessions on Stream Management, Conservation and Endangered Species, and Life History Evolution and General Biology, several themes emerged (Appendix A).