Salmon and alder as drivers of nutrient availability and lake productivity in southwestern Alaska

We completed a four-year project to investigate the relative importance of nutrients derived from salmon and alder on lake productivity in southwestern Alaska. We installed water quality and quantity monitoring equipment at 13 lakes on Togiak National Wildlife Refuge. We collected and analyzed over 200 water samples in summer and fall 2010-2013 for a battery of biological and chemical attributes. We monitored stream discharge in summer and fall at 26 streams entering the study lakes to estimate hydrological budgets. We performed annual aerial salmon surveys at all lakes and estimated run size in each. We have updated an existing landcover map to refine our estimate of alder cover in the study area. This final report describes the results and discusses their implications.

Data and Resources

Additional Info

Field Value
Maintainer Brent Frakes
Last Updated July 25, 2019, 12:54 (CDT)
Created July 25, 2019, 12:54 (CDT)
Identifier FWS_ServCat_73110
Issued 2014-12-01
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