20080868 Ver 2_I-57 2015 Tooley Ponar Downstream Raw Data Table_20160708

Table 1-57. Numbers of benthic macroinvertebrates collected in each ponar grab sample at the
Tooley Creek downstream station in May 2015.
Species/taxon
Tooley Creek Downstream Samples
1
2
3
4
5
Average
Annelida
Oligochaeta
Tubificoides heterochaetus
11
34
17
3
49
22.8
Polychaeta
Amphicteis floridus
1
0
0
1
0
0.4
Eteone heteropoda
7
0
3
5
6
4.2
Heteromastus filiformis
0
1
2
0
0
0.6
Marenzelleria virldis
6
2
2
0
2
2.4
Mediomastus ambiseta
28
22
33
9
47
27.8
Streblospio benedicti
14
44
18
4
33
22.6
Arthropoda
Insecta
Diptera
Chironomus decorus
100
100
100
100
100
100.0
Tanypus neopunctipennis
1
4
1
2
0
1.6
Tanytarsus sp.
2
2
1
2
0
1.4
Malacostraca
Amphipoda
Apocorophium sp.
2
0
0
0
0
0.4
Gammarus tigrinus
0
3
0
0
1
0.8
Isopoda
Cyathrua polita
0
0
1
0
0
0.2
Edotia montosa
0
0
0
0
1
0.2
Mysida
Americamysis almyra
1
0
1
0
0
0.4
Mollusca
Bivalvia
Macoma balthica
1
1
2
0
4
1.6
Macoma tenta
7
5
11
9
14
9.2
Mytilopsis leucophaeta
0
0
1
0
0
0.2
Gastropoda
Littoridinops sp.
1
5
2
2
0
2.0
Nematoda
Nematoda sp.
0
1
0
0
0
0.2
Total taxa by sample
182
224
195
137
257
Total abundance = 995
Total taxa present = 20
Shannon -Wiener diversity = 1.66
1-65