20080868 Ver 2_I-39 2015 PA2 Ponar Upstream Raw Data Table_20160708

Table 1-39. Numbers of benthic macroinvertebrates collected in each ponar grab sample at the PA2
upstream station in May 2015.
Species/taxon
PA2 Creek Upstream Samples
1
2
3
4
5
Average
Annelida
Oligochaeta
Tubificidae sp. w/o hair
1
1
0
2
1
1.0
Polychaeta
Amphicteis floridus
2
9
2
7
10
6.0
Eteone heteropoda
1
6
0
2
2
2.2
Marenzelleria viridis
0
1
0
3
1
1.0
Polydora cornuta
0
1
0
0
0
0.2
Streblospio benedicti
1
0
0
2
2
1.0
Arthropoda
Insecta
Diptera
Chironomus decorus
41
100
43
100
100
76.8
Tanypus neopunctipennis
14
4
1
5
5
5.8
Tanytarsus sp.
2
6
2
7
8
5.0
Malacostraca
Amphipoda
Apocorophium sp.
0
2
0
0
0
0.4
Gammarus tigrinus
0
12
3
0
11
5.2
Mysida
Americamysis almyra
0
0
0
3
0
0.6
Americamysis bigelowi
0
0
0
1
0
0.2
Maxillopoda
Harpacticoida sp.
0
1
1
0
0
0.4
Ostracoda
Candonidae sp.
0
4
1
0
0
1.0
Cnidaria
Anthozoa
Actinaria sp.
0
1
0
0
0
0.2
Mollusca
Bivalvia
Mytilopsis leucophaeta
0
1
0
0
0
0.2
Gastropoda
Littoridinops sp.
6
7
6
4
4
5.4
Total taxa by sample
68
156
59
136
144
Total abundance = 563
Total taxa present = 18
Shannon -Wiener diversity = 1.35
1-47