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Enhancement of Summer-Run Steelhead in Silverhope Creek 1978-1987: Summary & Final Report Griffith, R. P.
1982
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Abstract: Four years of juvenile steelhead standing stock monitoring indicate that 150,000 fry liberated yearly would have no negative impact on wild stocks in upper Silverhope Creek. Mean total biomass densities have increased from 1.67 to 8.50 g/m2 from 1978 to 1981. On the basis of the data a fall fry to smolt survival rate of 12% appears to be realistic for hatchery fry of summer steelhead in the system. A run of up to 175 additional adults in projected for 1984 (2.2 adults) and up to 500 (or more) adults in subsequent years assuming a 4% smolt to adult survival.
 
Griffith, R. P.. 1982. Enhancement of Summer-Run Steelhead in Silverhope Creek 1978-1987: Summary & Final Report. Ministry of Environment. Fisheries Report. FRN190
 
Topic: Fish and Fish Habitats
Keywords: enhancement, summer, run, steelhead, silverhope, creek, 1978, 1987, summary, final, report
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