20080868 Ver 2_I-57 2017 Tooley Ponar Downstream Raw Data Table_20180629

Table 1-57. Numbers of benthic macroinvertebrates collected in each ponar grab sample at the Tooley
Creek downstream station in May 2017.
Species/taxon
Tooley Creek Downstream Samples
1
2
3
4
5
Average
Annelida
Oligochaeta
Tubificoides heterochaetus
30
1
20
24
3
15.6
Polychaeta
Amphicteis floridus
1
0
0
0
0
0.2
Eteone heteropoda
5
8
4
4
4
5.0
Heteromastus filiformis
0
0
1
0
0
0.2
Marenzelleria viridis
32
17
21
21
39
26.0
Mediomastus ambiseta
34
8
34
37
13
25.2
Polydora cornuta
1
0
0
0
0
0.2
Streblospio benedicti
15
0
3
12
0
6.0
Arthropoda
Insecta
Diptera
Chironomus decorus
0
1
0
0
0
0.2
Coelotanypus sp.
1
0
0
0
1
0.4
Procladius sp.
1
0
0
0
0
0.2
Tanypus neopunctipennis
14
3
4
4
3
5.6
Malacostraca
Amphipoda
Apocorophium sp.
1
1
1
0
0
0.6
Gammarus mucronatus
0
2
0
0
0
0.4
Gammarus tigrinus
4
10
3
2
2
4.2
Isopoda
Cyathrua polity
1
1
2
2
2
1.6
Edotia montosa
0
1
0
2
0
0.6
Mysida
Americamysis almyra
1
0
0
2
0
0.6
Ostracoda
Cyprideis littoralis
0
0
0
0
1
0.2
Mollusca
Bivalvia
Macoma balthica
6
2
7
8
4
5.4
Macoma tenta
3
3
3
1
3
2.6
Rangia cuneata
18
30
22
33
30
26.6
Gastropoda
Littoridinops sp.
6
7
3
5
10
6.2
Total taxa by sample
174
1 95
1 128
1 157
1 115
Total abundance = 669
Total taxa present = 23
Shannon -Wiener diversity = 2.28
1-63