Fishing for trout in the Thompson River drainage is becoming an increasingly important sport. Some of the fish caught have been to sea for part of their lives, and are accordingly called ?Steelheads?. Others, particularly those taken in Shuswap Lake, have probably not, and are called "Kamloops. Usually it is
possible to tell from examination of the scale markings whether or not a given fish is "sea-run", but there are quite a few scale samples in which the markings are ambiguous. It would be desirable to find an alternative way of determining whether or not these questionable fish have been to sea, for obviously different sorts of fishing regulations must be applied to migratory fish and to permanently fresh-water fish.
Lindsey, C.C.. 1955. Progress Report on Chemical Analysis of Steelhead and Kamloops Trout Scales to Detect Sea-run Fish FMR 15. Ministry of Environment. Fisheries Management Publication. 15
Topic: Fish and Fish Habitats
Keywords: Thompson River;trout;Shuswap Lake
Other Identifier: FMR15
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