20080868 Ver 2_I-75 2015 DCUT19 Ponar Upstream Raw Data Table_20160708

Table 1-75. Numbers of benthic macroinvertebrates collected in each ponar grab sample at the
DCUT19 upstream station in May 2015.
Species/taxon
DCUT19
Upstream Samples
1
2
3
4
5
Average
Annelida
Oligochaeta
Tubificidae sp. w/o hair
2
6
0
0
0
1.6
Polychaeta
Amphicteis floridus
20
16
6
0
2
8.8
Laeonereis culveri
0
4
8
0
0
2.4
Arthropoda
Insecta
Diptera
Bezzia/Palpomyia complex
0
2
4
2
2
2.0
Chironomus decorus
0
0
0
0
2
0.4
Parachironomus sp.
0
0
0
2
0
0.4
Tanypus neopunctipennis
2
0
2
0
0
0.8
Tanytarsus sp.
4
2
10
2
0
3.6
Malacostraca
Amphipoda
Gammarus tigrinus
0
2
0
2
0
0.8
Ostracoda
Candonidae sp.
0
2
4
0
0
1.2
Cyprideis littoralis
0
0
6
4
2
2.4
Mollusca
Gastropoda
Littoridinops sp.
2
4
16
12
2
7.2
Nematoda
Nematoda sp.
4
8
0
0
0
2.4
Total taxa by sample
34
46
56
24
10
Total abundance = 170
Total taxa present = 13
Shannon -Wiener diversity = 2.19