06-21-2010, 02:26 PM
Good question. In the near future summaries will be available on the DWR website for the Blue Ribbon fisheries, Flaming Gorge included. Each year there will be an updated annual summary on specific waters so anglers can read about population trends and what they could mean in terms of angling.
I've attached a graph (JPEG format) of kokanee population trends from 1996-2009. Surveys were not reported in 2004, due to equipment issues. Once again, these estimates are calculated using hydroacoustic surveys of the entire reservoir and estimates are truthed using open water trawling. Only fish less than 350 mm or 14-inches are reported. Size classes indexed are the typical standards for year classes in the Gorge, meaning fish less than 112 mm are Age-0, fish 112-235 mm are Age-1, and fish 235-350 mm are Age-2. You can see the variablility in year classes over time; along with low points and high points. Hope it helps, Ryan
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I've attached a graph (JPEG format) of kokanee population trends from 1996-2009. Surveys were not reported in 2004, due to equipment issues. Once again, these estimates are calculated using hydroacoustic surveys of the entire reservoir and estimates are truthed using open water trawling. Only fish less than 350 mm or 14-inches are reported. Size classes indexed are the typical standards for year classes in the Gorge, meaning fish less than 112 mm are Age-0, fish 112-235 mm are Age-1, and fish 235-350 mm are Age-2. You can see the variablility in year classes over time; along with low points and high points. Hope it helps, Ryan
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