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Salmon River Nutrient Enrichment for Fish Habitat Restoration: 2005 Manley, Dori
2005
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Abstract: From June 2 to September 19, 2005, inorganic fertilizer was added to the Salmon River (Kelsey Bay), Grilse Creek, and the Memekay River for the enhancement of winter-run steelhead (Oncorhynchus mykiss) and coho (O. kisutch). A total of 2,365 L of liquid ammonium phosphate fertilizer (10-34-0), was dispensed through five drip stations: Grilse Creek  365 L, Salmon River near Rock Creek Main Line  780 L, Salmon River at the diversion  500 L, Salmon River at Memekay Main Line bridge crossing  400 L, and the Memekay River  320 L. Fertilizer loading rates were adjusted to changing streamflow throughout the treatment period. Water samples were collected June 20, July 12, and August 11, 2005 and analysed for low-level nutrient concentrations. Juvenile fish sampling within treated and control reaches indicated a positive growth response to the inorganic drip fertilizer. Increased algae growth was noted within the treated reaches, although there was an apparent die-off observed between July 20 and August 11. A new organic nutrient product was tested in the upper Salmon River below Jessie Creek, in 2005. The product was made from fish meal (Alaskan pollock), heat-treated to remove pathogens, and then dried. This product was developed under the guidance of Dr. Ken Ashley of the Ministry of Environment, Fisheries Research Section, Vancouver and experimentally produced by David Murphy of Welcome Harvest Farm Ltd., Saltspring Island. Water samples from the upper Salmon River were collected on July 7, July 22, August 4 and August 11, 2005. Periphyton samples collected from treated and control sites indicated a positive algae growth response downstream of the pollock bone meal application.
 
Manley, Dori, Hansen, Loreta; Wright, Harlan. 2005. Salmon River Nutrient Enrichment for Fish Habitat Restoration: 2005. Forest Investment Account (FIA) - Land Base Investment Program. Forest Investment Account Report
 
Topic: FLNRORD Research Program
Keywords: Forest, Investment, Account, (FIA)
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