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| Title | Water Quality Survey of 15 "Volunteer-Monitored" Lakes in Washington State | |||
| Month-Year Published | July 1991 | |||
| Online Availability |
3835 kilobytes, requires version 4.0 or later of Adobe Acrobat Reader Software get Acrobat Reader
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| Short Description |
A 15 lake subset of the 90 "volunteer-monitored" lakes were sampled in June and September 1990 for conventional water quality parameters to assess each lake′s current trophic status. Carlson′s trophic state index (TSI) was used in the determination. (Also see abstract below) | |||
| Publication Number | 91-e06 | |||
| Author(s) | Coots, R. | |||
| Print Availability |
Not maintained in stock. Copy must be made from archive version.
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| Number of pages | 95 pp. | |||
| Keywords | lake, quality, volunteer monitoring, water quality | |||
| Subject Waterbodies |
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| Abstract | Long Description |
A 15 lake subset of the 90 "volunteer-monitored" lakes were sampled in June and September 1990 for conventional water quality parameters to assess each lake′s current trophic status. Carlson′s trophic state index (TSI) was used in the determination. This method yielded TSI values ranging from 31 to 63, 24 to 75, and 26 to 61 based on Secchi disc transparency, epilimnetic total phosphorus and epilimnetic chlorophyll-a, respectively. Eight of the 15 lakes had dissimilar TSI values based on the three index parameters. When TSI values were not similar, or there were anomalies based on other trophic state indicators, all factors were used for trophic state determination. Six lakes were classified oligotrophic to oligo-mesotrophic, three lakes were mesotrophic to meso-eutrophic and six lakes were eutrophic. |
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