20080868 Ver 2_I-75 2017 DCUT19 Ponar Upstream Raw Data Table_20180629

Table 1-75. Numbers of benthic macro inverte brates collected in each ponar grab sample at the
DCUT19 upstream station in May 2017.
Species/taxon
DCUT19
Upstream Samples
1
2
3
4
5
Average
Annelida
Oligochaeta
Naididae sp. w/o hair
4
0
4
0
0
1.6
Polychaeta
Amphicteis floridus
64
4
60
8
0
27.2
Arthropoda
Insecta
Coleoptera
Peltodytes sp.
0
4
4
0
0
1.6
Stictotarsus griseostriatus
0
0
4
0
0
0.8
Diptera
Bezzia/Palpomyia complex
24
0
24
0
4
10.4
Chironomus decorus
0
0
20
0
0
4.0
Dicrotendipes nervosus
36
8
20
8
4
15.2
Parachironomus sp.
4
0
0
0
0
0.8
Tanypus neopunctipennis
12
0
0
0
0
2.4
Tanytarsus sp.
64
20
72
0
4
32.0
Hemiptera
Abedus/Belostoma complex
4
0
0
0
0
0.8
Odonata
Perithemis tenera
0
0
4
0
0
0.8
Malacostraca
Amphipoda
Apocorophium lacustre
0
0
4
0
0
0.8
Apocorophium sp.
0
4
0
0
0
0.8
Gammarus tigrinus
52
16
44
0
0
22.4
Ostracoda
Candonidae sp.
100
8
100
36
12
51.2
Cyprideis littoralis
28
12
32
4
4
16.0
Mollusca
Gastropoda
Littoridinops sp.
56
20
28
12
0
23.2
Nematoda
Nematoda sp.
44
0
12
0
8
12.8
Total taxa by sample
492
96
432
68
36
Total abundance = 1,124
Total taxa present = 18
Shannon -Wiener diversity = 2.32
IN