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At present fishing for salmon in Norwegian home water is carried out with drift nets, bag nets, bend nets, lift nets and stake nets in the sea, and mainly by rods in the rivers. Catch statistics have been collected since 1876, but reliability of the statistics is questionable. The rates of exploitation on many Norwegian salmon stocks are very high, and data are presented and discussed for River Laerdal, River Eira and River Imsa stocks. As a result of this heavy exploitation with nets, the frequency of net-marked salmon entering rivers is high especially for griIse, although most net-marked salmon are only slightly damaged. It is suggested that mortality of salmon that are net-damaged hear or in brackish water is relatively small compared with salmon that escape from nets on the high seas. Some possible effects of selective fishing are also discussed. 159 Status of Exploitation of Atlantic Salmon in Norway REFERENCES Anon. (l985a) Salmon and sea trout fisheries 1984. Central Bureau of Statistics of Norway, Oslo - Kongsvinger, 96 pp. (in Norwegian with English summary) Anon. (I985b) Report of meeting of working group on North Atlantic salmon. ICES C. M. 1985/ Assess, 11, 67 pp. Angelsen, K. K. and Holm, M. (I978) Rapport om garnforslllk med laks, Fisk og Fiskestell, . ; 15-17. (in Norwegian) Berg, M. , Abrahamsen, B. and Berg, O. K. (I986) Spawning of injured compared to uninjured female Atlantic salmon, Salmo salar L. Aquaculture and Fisheries Management, l.
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This handbook, intended for commercial users of salmon, discusses all seven species of salmon and details the market potential for both wild and farmed salmon. The book outlines in detail the life cycle, unique characteristics and distribution of each species, illustrating each entry with watercolour diagrams and distribution maps to aid in identification. The author describes both the history and the future of the salmon industry and explores the effect aquaculture has had and will have on the quality, size and consistency of the world salmon population. It also discusses the wild salmon industry, provides an understanding of how wild fisheries are managed and regulated and summarizes wild salmon seasons in America and Canada. The book also gives the commercial user useful tools to evaluate quality in fresh, frozen and canned salmon and salmon products to better exploit the new vitality and opportunities of the salmon industry.