Scientific Investigations Report 2008–5168
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008–5168
Table 8. Comparisons of medians and ranges of total phosphorus, chlorophyll-a, and total zinc concentrations at pelagic and paired littoral stations on common weeks sampled, Coeur d’Alene Lake, Idaho, water years 2004–05.
[Abbreviations: µg/L, microgram per liter; <, less than; –, not analyzed]
Stations | Total phosphorus concentration (µg/L) |
Chlorophyll-a concentration (µg/L) |
Total zinc concentration (µg/L) |
|||||
---|---|---|---|---|---|---|---|---|
Median | Range | Median | Range | Median | Range | |||
Station 1 | ||||||||
Pelagic station 1 | 6 | 2–11 | 1.7 | 0.4 –2.7 | 55 | 34–65 | ||
Littoral station NS10 | 5 | 3–14 | 1.7 | 0.58–3.5 | 52 | 34–98 | ||
Littoral station NS11 | 7.5 | 3–15 | 1.2 | 0.61–2.0 | 48 | 34–97 | ||
Littoral station NS12 | 5 | 3–8 | 1.2 | 0.83–3.4 | 52 | 31–83 | ||
Station 3 | ||||||||
Pelagic station 3 | 6 | 2–10 | 1.4 | <0.1–2.8 | 54 | 36–75 | ||
Littoral station NS6 | 4.5 | 3–23 | 1.4 | 0.38–2.1 | 58 | 36–77 | ||
Littoral station NS7 | 4 | 3–13 | 1.4 | 0.39–2.1 | 66 | 43–100 | ||
Littoral station NS8 | 5.5 | 5–14 | 1.4 | 0.4 –2.1 | 52 | 32–106 | ||
Littoral station NS9 | 4.5 | 3–14 | 1.1 | 0.78–1.6 | 55 | 39–86 | ||
Station 4 | ||||||||
Pelagic station 4 | 5 | 3–12 | 1.5 | 0.2–2.4 | 54 | 42–82 | ||
Littoral station NS3 | 6.5 | 5–15 | 1.2 | 0.45–2.1 | 55 | 37–94 | ||
Littoral station NS4 | 6 | 4–12 | 1.0 | 0.86–2.6 | 56 | 36–83 | ||
Littoral station NS5 | 5 | 3–16 | 1.2 | 0.59–2.3 | 54 | 38–74 | ||
Station 5 | ||||||||
Pelagic station 5 | 10 | 7–31 | 1.4 | 0.7–2.7 | 36 | 3–61 | ||
Littoral station NS1 | 11.5 | 7–27 | 1.2 | 0.33–4.8 | 19 | 6–90 | ||
Littoral station NS2 | 7 | 5–15 | 1.2 | 0.46–3.5 | 44 | 13–77 | ||
Station 6 | ||||||||
Pelagic station 6 | 17 | 10–36 | 2.9 | 0.5–5.6 | 2 | 1–4 | ||
Littoral station S5 | – | – | – | – | 2 | 1–2 | ||
Littoral station S6 | – | – | – | – | 2 | 2–2 | ||
Littoral station NS1 | 10 | 7–27 | 0.9 | 0.3–2.3 | 18 | 6–90 |