Appendix A
Supplemental Table 1. Summary of field data for preliminary microhabitat selection at Sullivan
Lake, Minnesota, June 1, 2010. Data collected moving North to South along Eastern Shoreline
and continuing West along Southern shoreline. [µS/cm, microsiemens per centimeter; Temp,
temperature; ºC, degrees Celsius; mg/L, milligrams per liter; NM, not measured; Temp residual
= Temp lake – Temp pore; Temp residual < 2 ºC indicates lake water loss downward to
groundwater; Temp residual from 2 to 5 ºC indicates mixing of groundwater and surface water;
Temp residual >5 indicates groundwater discharge to lake].
Study
Microhabitat
Matrix
Lakebed
pH
Specific
Conductance
(µS/cm)
Nitrate
mg/L
Lake
Temp
°C
Temp
residual
°C
C
Lake
Silt/clay
8.4
389
NM
24.3
NM
Between A
and C
Pore
Silt/clay
NM
1868
4.6
NM
NM
Pore
Silt/clay
NM
1454
ND
NM
NM
Pore
Sandy
NM
692
0.3
NM
NM
Pore
Sandy
NM
678
0.3
NM
NM
Pore
Sandy
NM
2053
0.2
NM
NM
NM
Silt/clay
NM
NM
NM
NM
NM
Pore
Sandy
NM
590
NM
16.6
7.1
Mixing
into lake
Lake
Sandy
7.87
403
NM
23.7
Pore
Sandy
NM
610
0.1
21.4
2.3
Mixing
Lake
Sandy
8.19
402
NM
23.7
Pore
Sandy
NM
754
ND
NM
Lake
Sandy
7.85
424
NM
23.7
Pore
Sandy
NM
871
ND
NM
NM
Pore
Sandy
NM
916
ND
NM
NM
Lake
Sandy
7.75
400
0.2
NM
NM
Pore
Sandy
7.75
1229
ND
NM
NM
Pore
Sandy
NM
876
0.3
Pore
Silt/clay
NM
1395
0.2
NM
3.4 to
3.9
Lake
Silt/clay
7.16
416
0.2
Pore
Silt/clay
NM
548
0.2
Lake
Silt/clay
7.89
379
0.2
NM
18.619.1
22.5
16.0 to
16.9
22.5
A
B
Southwest
of B
Assumed
water
flow
NM
5.6 to
6.5
Mixing
Mixing
into lake