Horseshoe 2 (H2)

Description of Site: This site is approximately 1.25 km south of H3. It represents the transitional zone (intermediate between riverine and lacustrine).

Physico-chemical Parameters 9/8/99
Time Depth (m) Temp (C) DO (ppm) DO (%sat) pH SpCond. Turbidity (NTU's)
1447:23 0 30.73 7.51 104 9.14 695 6.6
1446:38 1.6 27.37 6.25 81.7 9.02 647 3.3
1445:52 3.5 26.95 5.18 67.1 8.95 645 4.9
1444:57 5.6 26.66 1.65 21.3 8.49 653 10.7

 
Depth (m) Total Phos. (ppm) Orthophos. (ppm) Nitrate (ppm) Ammonia (ppm) Total N (ppm) Dissolved Fe (ppm) Total Fe (ppm) Chl a (mg/m3) Pheophytin a (mg/m3)
0 0.067 ND ND 0.027 <1 0.068 0.10 21.672 11.311
5 0.066 ND ND 0.014 2 0.060 0.14 ------------ -------------

 
Depth (m) Chloride (ppm) Sulfate (ppm) Total Mn (ppm) Diss. Mn (ppm) Silica (ppm) TSS (ppm)
0 25.5 58.5 0.02 0.015 24.9 3
5 24.7 58.1 0.03 0.02 22.5 2

Secchi Depth: 1.06 meters

Phytoplankton (0.5 meters)
 
Division Genus Units/ml
Cyanophyta Anabaenopsis 4800
Cyanophyta Merismopedia 11,280
Cyanophyta Spirulina 11,520
Chlorophyta Chlamydomonas 480
Chlorophyta Chlorella 4560
Chlorophyta Crucigenia 1200
Chlorophyta Microspora 73,200
Chlorophyta Tetraedron 240
Chrysophyta Cymatopleura 240
Chrysophyta Diatoma 1200
Chrysophyta Nitzchia 4800

Results from 8/9/99