20080868 Ver 2_I-71 2015 Duck Ponar Upstream Raw Data Table_20160708

Table 1-71. Numbers of benthic macroinvertebrates collected in each ponar grab sample at the Duck
Creek upstream station in May 2015.
Species/taxon
Duck Creek Upstream Samples
1
2
3
4
5
Average
Annelida
Oligochaeta
Tubificidae sp. w/o hair
0
0
4
0
6
2.0
Polychaeta
Amphicteis f/oridus
20
16
52
96
15
39.8
Arthropoda
Insecta
Diptera
Bezzia/Palpomyia complex
12
4
0
0
0
3.2
Chironomus decorus
8
0
4
12
9
6.6
Chironomus stigmaterus
4
4
0
3
0
2.2
Cladopelma sp.
0
4
0
0
0
0.8
Dicrotendipes nervosus
12
4
0
6
6
5.6
Parachironomus sp.
0
4
0
3
0
1.4
Tanypus neopunctipennis
0
4
0
0
0
0.8
Tanytarsus sp.
0
12
12
9
0
6.6
Malacostraca
Amphipoda
Apocorophium sp.
4
0
0
0
0
0.8
Gammarus tigrinus
32
48
8
15
12
23.0
Ostracoda
Candonidae sp.
8
20
8
15
3
10.8
Cyprideis littoralis
8
20
0
3
0
6.2
Mollusca
Gastropoda
Littoridinops sp.
8
8
4
0
0
4.0
Nematoda
Nematoda sp.
12
4
0
12
3
6.2
Total taxa by sample
128
152
92
174
54
Total abundance = 600
Total taxa present = 16
Shannon -Wiener diversity = 2.17
MI