20080868 Ver 2_I-53 2017 Long Ponar Downstream Raw Data Table_20180629

Table 1-53. Numbers of benthic macroinvertebrates collected in each ponar grab sample at the Long
Creek downstream station in May 2017.
Species/taxon
Long Creek Downstream Samples
1
2
3
4
5
Average
Annelida
Polychaeta
Amphicteis floridus
0
0
1
0
0
0.2
Eteone heteropoda
0
1
0
4
1
1.2
Heteromastus filiformis
0
0
0
1
0
0.2
Marenzellaria viridis
15
17
24
24
21
20.2
Mediomastus ambiseta
0
0
0
1
2
0.6
Streblospio benedicti
0
2
1
3
1
1.4
Arthropoda
Insecta
Coleoptera
Berosus sp.
1
0
0
0
0
0.2
Diptera
Chironomus decorus
12
24
11
6
9
12.4
Tanypus neopunctipennis
0
4
1
4
0
1.8
Odonata
Enallagma sp.
0
1
0
0
0
0.2
Malacostraca
Amphipoda
Gammarus tigrinus
2
6
5
1
0
2.8
Isopoda
Cyathura polity
0
0
1
0
0
0.2
Ostracoda
Cyprideis littoralis
0
1
0
0
0
0.2
Mollusca
Bivalvia
Macoma balthica
1
4
1
5
3
2.8
Macoma tenta
5
4
5
8
3
5.0
Rangia cuneata
4
2
2
3
6
3.4
Gastropoda
Littoridinops sp.
6
10
8
7
1
6.4
Total taxa by sample
46
76
60
67
47
Total abundance = 296
Total taxa present = 17
Shannon -Wiener diversitv = 2.03
1-59