Table 1. Mean (+/- Standard Deviation) of physical and chemical lake characteristics.
| Site | Lake | Depth(m) | T°C | aΔT | bPZD | cNitrate(µg/L) | cNitrite(µg/L) | TP(µg/L) | SRP(µg/L) |
|---|---|---|---|---|---|---|---|---|---|
| MEDH | Mendota | 25.7 | 21.7 (3.8) | 9.7 (3.9) | 3.7 (2.7) | 190 (126) | 69 (46) | 49 (38) | 33 (45) |
| MEGA | Mendota | 18.1 | 20.1 (3.5) | 7.8 (4.0) | 6.0 (3.8) | 243 (208) | 56 (75) | 50 (32) | 63 (54) |
| MEPP | Mendota | 2.3 | 21.3 (2.1) | 0.7 (0.5) | 3.5 (0.9)* | 278 (208) | 94 (106) | 48 (35) | 34 (41) |
| MODH | Monona | 23.1 | 22.8 (3.6) | 7.3 (3.5) | 3.1 (2.1) | 82 (149) | 161 (253) | 35 (28) | 23 (19) |
| MOBE | Monona | 3.6 | 23.3 (3.0) | 0.9 (1.3) | 2.3 (0.6) | 67 (62) | 109 (227) | 50 (41) | 29 (29) |
| MOMB | Monona | 1.8 | 22.4 (4.9) | 0.9 (0.7) | 1.3 (0.7) | 56 (54) | 64 (111) | 61 (33) | 22 (25) |
| KEDH | Kegonsa | 9.6 | 22.8 (3.9) | 1.4 (1.4) | 2.7 (1.8) | 87 (33) | 65 (117) | 94 (45) | 47 (42) |
| KEBE | Kegonsa | 1.2 | 22.2 (4.3) | 0.4 (0.5) | 1.9 (0.6)* | 89 (170) | 70 (118) | 91 (31) | 36 (41) |
| KEYA | Kegonsa | 2.1 | 23.5 (3.6) | 0.7 (0.5) | 2.7 (0.8)* | 41 (37) | 43 (96) | 85 (34) | 40 (44) |
| WIDH | Wingra | 3.7 | 24.8 (3.8) | 1.1 (1.0) | 1.9 (0.6) | BDL | BDL | 20 (10) | 14 (7) |
| WIAR | Wingra | 2.8 | 23.6 (4.3) | 0.6 (0.6) | 1.8 (0.2) | BDL | BDL | 23 (13) | 13 (8) |
| WIBE | Wingra | 2.3 | 24.5 (3.6) | 0.7 (0.6) | 1.7 (0.6) | BDL | BDL | 23 (11) | 13 (5) |
a
ΔT is the difference in water temperature at the bottom and top of the lake at each site.
b PZD was estimated by multiplying secchi disk depth by 1.7. As such, average PZD calculated at some locations (*) extends beyond the maximum depth.
c
Nitrate and nitrite were below detection limits (BDL) in Lake Wingra on the majority of sample dates.