The chief objective was to provide a bibliography and review of the literature on sea-trout, Salmo trutta L. The review covers the literature originating from England, Wales, Scotland, Ireland, France and Scandinavia (including Denmark).
There are four expert reviews: the early life stages (spawning, eggs, emerging fry), ecology of the juveniles in fresh water (growth, feeding, population dynamics, smoltification), ecology of the adults (marine/coastal stages, anadromous migration), and physiology (including smoltification) and diseases. The last review also includes a brief account of genetics and taxonomy. All four expert reviews are based on key papers, rather than all publications in the bibliography.
The comprehensive bibliography includes references from 1866 to March 1991. Titles of papers, where possible, have been given in English, but the principal language of the paper is also given where it differs from English. All journal titles have been abbreviated in compliance with the World List of Scientific Periodicals. The major sources for the bibliography were Aquatic Sciences and Fisheries Abstracts, British Books in Print, Biological Abstracts, Zoological Record and the extensive library of the Freshwater Biological Association.
The report includes a general overview that highlights the main points from each of the four expert reviews, identifies areas in which information is scarce and summarises priorities for future research. It is emphasized that long-term studies of sea-trout populations provide essential backgroimd data for the interpretation of short-term fluctuations and trends. Suggestions for further work are presented as twelve projects arranged in an approximate order of priority that is chiefly determined by need and cost. Although this order will change according to future developments and personal preferences, the twelve topics will probably remain as succinct summaries of research requirements in the immediate future.