20080868 Ver 2_I-53 2015 Long Ponar Downstream Raw Data Table_20160708

Table 1-53. Numbers of benthic macro i nve rte brates collected in each ponar grab sample at the Long
Creek downstream station in May 2015.
Species/taxon
Long Creek Downstream Samples
1
2
3
4
5
Average
Annelida
Oligochaeta
Tubificidae sp. w/o hair
0
0
2
0
0
0.4
Polychaeta
Amphicteis floridus
0
4
0
1
0
1.0
Eteone heteropoda
4
3
3
5
4
3.8
Heteromastus filiformis
0
0
0
0
1
0.2
Mediomastus ambiseta
2
32
32
13
1
16.0
Streblospio benedicti
14
100
100
72
9
59.0
Arthropoda
Insecta
Diptera
Chironomus decorus
53
100
100
100
53
81.2
Tanypus neopunctipennis
3
17
5
8
2
7.0
Tanytarsus sp.
1
1
0
0
0
0.4
Malacostraca
Mysida
Americamysis a/myra
0
0
1
1
0
0.4
Ostracoda
Candonidae sp.
0
1
0
1
0
0.4
Cyprideis littoralis
0
0
1
0
0
0.2
Mollusca
Bivalvia
Macoma balthica
3
8
9
4
2
5.2
Macoma tenta
12
18
13
14
8
13.0
Total taxa by sample
92
284
266
219
1 80
Total abundance = 941
Total taxa present = 14
Shannon -Wiener diversity = 1.52
1-61