Saguaro 2 (S2)

Description of Site: This site is in Divider Reef and is where the riverine zone starts to take on lacustrine properties. It is most representative of the transitional zone.
GPS Coordinates: 330 34.69 N   1110 29 56 W

7/21/99
Physico-chemical Parameters
Lake Elevation: 1523.15 feet above sea level
Time Depth (m) Temp (C) pH SpCond Salinity (ppt) D.O. (% sat) D.O. (mg/l) Turbidity (NTU's)
1116:32 0 28.99 8.97 1467 0.8 120.5 8.94 0.2
1116:18 1.4 28.8 8.96 1461 0.8 115.9 8.62 0.1
1115:56 3.2 27.31 8.61 1410 0.7 87.5 6.69 0.8
1115:34 5.2 25.08 8.02 1334 0.7 62 4.93 1.2
1114:58 7.1 23.82 7.84 1293 0.7 50.5 4.11 1.1
1114:29 9 23.09 7.74 1272 0.7 42.4 3.51 1.6
1114:11 10.5 22.9 7.72 1266 0.7 39.9 3.31 1.9
1113:52 12.3 22.63 7.69 1258 0.7 39.3 3.27 2.3

 
Depth (m) Ammonia (mg/l) Nitrate (mg/l) TKN (mg/l) Ortho P (mg/l) Total P (mg/l) Sulfate (mg/l) Chloride (mg/l)
0 0.02 ND 2.06 ND 0.15 55.8 300
12 ND ND 1.22 ND 0.097 55.8 300

 
Depth (m) Dissolved Fe (mg/l) Dissolved Mn (mg/l) Total Fe (mg/l) Total Mn (mg/l) Silica (mg/l) TSS Chl a (mg/m3) Pheophytin a (mg/m3)
0 ND ND 0.018 ND 14.9 ND 9.352 6.452
12 ND ND 0.079 0.020 15.3 ND 13.472 12.088

Secchi Depth: 1.4 meters

Phytoplankton
0.5 m
Division Genus Units/ml
Cyanophyta Anabaenopsis 160
Cyanophyta Gomphosphaeria 80
Cyanophyta Merismopedia 320
Cyanophyta Microcystis 640
Chlorophyta Ankistrodesmus 880
Chlorophyta Chlamydomonas 160
Chlorophyta Chlorella 640
Chlorophyta Scenedesmus 160
Chrysophyta Cyclotella 80
Chrysophyta Cymbella 80
Chrysophyta Nitzchia 240

Graphic of:
Temp by Depth
D.O. by Depth
pH by Depth
Turbidity by Depth