Slocan River Streamkeepers Diary for 2005
The Diary summarizes the varied assessment, educational outreach and riparian restoration projects carried out by Streamkeepers in 2005. The various projects are discussed in more detail in the other 2005 reports; this document provides an overview of a typical year of activity for a busy Streamkeepers group. 10 pages, many illustrations. (1.2mb)

Monitoring Spawning Rainbow Trout and Redd Counts in the Slocan River: 2003 - 2006 Report prepared by: Peter J. Corbett, RPBio, Mirkwood Ecological Consultants Ltd.

The Slocan River Streamkeepers have begun long term monitoring of a variety of environmental and biological variables in the river to serve as a baseline from which to monitor ecological change. We identified spawning productivity of rainbow trout (Oncorhynchus mykiss) as a reasonable measurement of ecosystem health and therefore a valuable biological variable to monitor over time. The intent of this survey is to collect data for comparison from year to year at the same location (relative abundance) versus determining total productivity throughout the river. 4 pages. (0.1mb)

Slocan River Rainbow Trout Population Assessment: 2005 Report prepared by: Peter J. Corbett, RPBio, Mirkwood Ecological Consultants Ltd.

Monitoring of the Slocan River rainbow trout (Oncorhynchus mykiss) population began in 1985. In 1993 the river was closed to angling based on previous assessments that demonstrated the population was in severe decline. Since the closure, the population has increased but still displays a high variability in population size and structure. This variability may be explained in part by the variability of summer water temperatures, whereby in certain years a temperature threshold is exceeded causing trout mortality and/or a reduction in fitness. The one consistency in the data is that the Lemon Creek index site produces a significantly greater number of trout in all age/size classes than any of the other index sites. 19 pages. (0.2mb)