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Scientific Investigations Report 2009–5025

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2009–5025

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Table 1. Minimum, maximum, and median values of chlorophyll a, total particulate nitrogen, total nitrogen, total particulate carbon, total phosphorus, orthophosphate, ammonia, dissolved organic carbon, nitrite-plus-nitrate, dissolved oxygen, pH, and specific conductance at sites FCM1, FCM2, and FCM3, flooded Caledonia Marsh, Upper Klamath Lake, Oregon, 2006.

[Abbreviations: μg/L, microgram per liter; μS/cm, microsiemen per centimeter; mg/L, milligram per liter]

Analyte Site
FCM1 FCM2 FCM3
Maximum Minimum Median Maximum Minimum Median Maximum Minimum Median
Chlorophyll a (μg/L) 169 4 71 78 3 18 189 27 91
Total particulate nitrogen (μg/L) 2,270 90 1,080 1,410 230 400 2,890 200 1,925
Total nitrogen (μg/L) 3,950 1,000 2,840 2,970 1,590 2,305 4,940 1,230 3285
Total particulate carbon (μg/L) 12,800 500 5,500 8,400 1,200 2,100 15,487 1,100 11,700
Total phosphorus (μg/L) 480 89 380 530 280 380 530 154 400
Orthophosphate (μg/L) 216 59 177 354 126 272 222 72 179
Ammonia (μg/L) 158 6 20 369 13 118 191 15 23
Nitrite-plus-nitrate (μg/L) 74 8 16 126 16 27 29 8 16
Dissolved organic carbon (μg/L) 20,800 9,500 16,700 22,900 13,500 21,100 21,600 10,900 18,266
Dissolved oxygen (mg/L) 11.73 6.50 8.10 10.12 2.90 5.10 13.21 4.40 7.83
pH 9.34 7.60 8.50 8.85 7.07 7.55 9.24 7.50 8.50
Specific conductance (μS/cm) 214 131 193 273 180 253 223 141 209

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