|
|
Invertebrate |
Group’s totals |
T |
|||
|
1 |
2 |
3 |
4 |
|
||
|
Group One Need
High Oxygen
Sensitive to pollution |
Stonefly nymph |
9 |
5 |
26 |
4 |
44 |
|
Mayfly nymph |
9 |
10 |
3 |
3 |
25 |
|
|
Dobsonfly larva |
4 |
5 |
11 |
1 |
21 |
|
|
Water penny larva |
3 |
4 |
5 |
0 |
12 |
|
|
Riffle beetle larva or adult |
3 |
5 |
0 |
0 |
8 |
|
|
Caddisfly larva |
7 |
3 |
86 |
2 |
99 |
|
|
|
209 |
|||||
|
GroupTwo
Can survive with moderate oxygen levels
Slightly sensitive to pollution |
Other beetle larva |
2 |
2 |
0 |
0 |
4 |
|
Cranefly larva |
1 |
3 |
0 |
3 |
7 |
|
|
Scuds |
5 |
4 |
3 |
0 |
12 |
|
|
Clams and mussels |
|
|
|
|
|
|
|
Crayfish |
4 |
2 |
1 |
2 |
9 |
|
|
Dragonfly nymph |
9 |
3 |
3 |
1 |
15 |
|
|
Damselfly nymph |
7 |
2 |
0 |
0 |
9 |
|
|
Blackfly nymph |
2 |
0 |
0 |
0 |
2 |
|
|
Alderfly nymph |
1 |
3 |
17 |
0 |
21 |
|
|
Watersnipe larva |
1 |
1 |
0 |
1 |
3 |
|
|
|
82 |
|||||
|
Group Three
Low Oxygen
Not sensitive to pollution |
Midge larva |
1 |
2 |
3 |
1 |
7 |
|
Snail |
10 |
2 |
0 |
0 |
12 |
|
|
Sowbug |
1 |
2 |
0 |
0 |
3 |
|
|
Leech |
0 |
0 |
0 |
2 |
2 |
|
|
Aquatic worm |
1 |
52 |
6 |
0 |
59 |
|
|
|
83 |
|||||
|
Other
|
Amphibians |
4 |
2 |
2 |
1 |
9 |
|
Trout |
7 |
12 |
11 |
121 |
151 |
|
|
Sucker fish |
1 |
8 |
5 |
3 |
17 |
|
|
Water striders |
+++ |
|
|
|
|
|
|
Water spider |
1 |
2 |
2 |
3 |
8 |
|
|
|
|
|
|
|
185 |
|
