Raw Biological
Data for the North Fork of the THORNTON RIVER
at Routes 211/522
confluence with the South Fork (R-7)
|
Cycle |
Avg. Width (ft) |
Avg. Depth (in) |
Flow Rate |
Temp (°F) |
Collection Time (sec) |
Worms |
Flatworms |
Leeches |
Crayfishes |
Sowbugs |
Scuds |
Stoneflies |
Mayflies |
Dragonflies Damselflies |
Hellgrammites Fishflies Alderflies |
Net-spinning Caddisflies |
Most Caddisflies |
Beetles |
Midges |
Black Flies |
Most True Flies |
Gilled Snails |
Lunged Snails |
Clams |
Other |
Total |
Index Value |
|
Spring 01 |
20 |
6 |
normal |
62.5 |
50 |
3 |
0 |
0 |
1 |
0 |
0 |
19 |
188 |
0 |
2 |
29 |
13 |
21 |
23 |
0 |
5 |
0 |
0 |
0 |
0 |
304 |
12 |
|
Summer 01 |
15 |
3 |
low |
64 |
40 |
8 |
1 |
0 |
1 |
0 |
0 |
29 |
41 |
2 |
9 |
54 |
16 |
63 |
4 |
0 |
6 |
0 |
0 |
0 |
0 |
234 |
11 |
|
Fall 01 |
10 |
3 |
low |
59 |
60 |
0 |
3 |
0 |
0 |
0 |
0 |
9 |
57 |
0 |
9 |
49 |
16 |
30 |
0 |
2 |
0 |
0 |
0 |
0 |
31 |
206 |
8 |
|
Winter 02 |
25 |
10 |
normal |
40 |
20 |
4 |
0 |
0 |
0 |
0 |
1 |
30 |
26 |
0 |
6 |
52 |
66 |
62 |
5 |
0 |
0 |
0 |
0 |
0 |
0 |
252 |
11 |
|
Spring 02 |
20 |
4 |
low |
50 |
60 |
1 |
0 |
0 |
0 |
0 |
0 |
7 |
65 |
0 |
10 |
19 |
6 |
25 |
33 |
2 |
29 |
0 |
0 |
0 |
9 |
206 |
12 |
|
Summer 02 |
10 |
3 |
low |
76 |
60 |
3 |
2 |
0 |
1 |
0 |
0 |
21 |
54 |
0 |
1 |
37 |
13 |
36 |
29 |
0 |
15 |
0 |
0 |
0 |
0 |
212 |
12 |
|
Fall 02 |
n/d |
|
no flow |
|
| Spring 03 |
15 |
9 |
normal |
56 |
75 |
3 |
0 |
0 |
0 |
0 |
0 |
4 |
141 |
0 |
0 |
4 |
6 |
29 |
38 |
4 |
15 |
0 |
0 |
0 |
0 |
244 |
12 |
| Summer 03 |
15 |
4 |
normal |
68 |
60 |
4 |
4 |
0 |
2 |
0 |
0 |
8 |
61 |
3 |
2 |
52 |
26 |
32 |
31 |
2 |
12 |
0 |
0 |
0 |
0 |
239 |
11 |
| Fall 03 |
30 |
10 |
normal |
56 |
45 |
4 |
0 |
0 |
2 |
0 |
0 |
26 |
39 |
0 |
5 |
84 |
69 |
22 |
15 |
0 |
7 |
0 |
0 |
0 |
0 |
273 |
11 |
| Spring 04 |
30 |
10 |
high |
54 |
50 |
21 |
0 |
0 |
4 |
1 |
5 |
182 |
41 |
1 |
2 |
25 |
33 |
14 |
15 |
5 |
14 |
0 |
0 |
0 |
0 |
208 |
9 |
| Fall 07 |
20 |
6 |
low |
59.9 |
40 |
1 |
0 |
0 |
0 |
0 |
0 |
6 |
88 |
1 |
7 |
48 |
106 |
10 |
174 |
2 |
82 |
0 |
0 |
0 |
0 |
525 |
10 |
| Spring 08 |
25 |
14 |
high |
56.3 |
30 |
2 |
0 |
1 |
0 |
0 |
0 |
9 |
404 |
1 |
4 |
5 |
8 |
11 |
12 |
6 |
0 |
0 |
0 |
0 |
0 |
463 |
10 |
| Summer 08 |
20 |
8 |
normal |
72.5 |
40 |
8 |
0 |
0 |
0 |
0 |
0 |
33 |
56 |
1 |
5 |
72 |
4 |
13 |
35 |
4 |
1 |
0 |
0 |
0 |
3 |
235 |
10 |
|
 Return
to R-7 n/d = No data |