The purpose of this study was to further assess juvenile steelhead and rainbow trout population densities in Big Silver Creek relative to available habitat, and to assess the success of the steelhead fry stocking program in the upper river. Only four electrofishing sites were completed due to heavy rain and resulting high stream flows. Fry densities were low at all sites. Parr density was high at the one suitable site completed within the stocked section of stream, but it was inconclusive if this was a result of the fry stocking program. Parr densities were very low at all other sites. A more intensive sampling program would be required for a conclusive evaluation of the success of the fry stocking program. Such an evaluation should take place about one month after fry are stocked. Stocked fry should be marked so wild and hatchery juveniles can be differentiated.
Bech, Poul. 1994. Big Silver Creek Juvenile Steelhead & Rainbow Trout Stock Assessment, 1993. Ministry of Environment. Lower Mainland Regional Fisheries Report. RFR LM239
Topic: Fish and Fish Habitats
Keywords: steelhead, rainbow trout, fry, parr, assessment, population densities, electrofishing
Scientific Name: Oncorhynchus mykiss
English Name: Rainbow Trout
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