20080868 Ver 2_I-33 2015 Jacks Ponar Downstream Raw Data Table_20160708

Table 1-33. Numbers of benthic macroinvertebrates collected in each ponar grab sample at the Jacks
Creek downstream station in May 2015.
Species/taxon
Jacks Creek Downstream Samples
1
2
3
4
5
Average
Annelida
Oligochaeta
Tubificidae sp. w/o hair
16
3
6
28
6
11.8
Polychaeta
Amphicteis floridus
0
1
0
6
3
2.0
Eteone heteropoda
1
2
1
5
2
2.2
Heteromastus filiformis
1
0
1
0
1
0.6
Laeonereis culveri
1
0
0
0
0
0.2
Marenzelleria viridis
1
0
2
0
2
1.0
Mediomastus ambiseta
0
0
2
1
0
0.6
Streblospio benedicti
17
7
24
100
14
32.4
Arthropoda
Crustacea
Zoea sp.
1
0
0
0
0
0.2
Insecta
Diptera
Bezzia/Palpomyia complex
0
0
3
0
1
0.8
Chironomus decorus
57
30
86
81
81
67.0
Dicrotendipes nervosus
0
0
0
1
0
0.2
Goeldichironomus devineyae
3
1
2
0
0
1.2
Tanytarsus sp.
6
4
1
3
5
3.8
Malacostraca
Amphipoda
Apocorophium lacustre
0
3
0
4
5
2.4
Apocorophium sp.
3
2
0
3
4
2.4
Gammarus tigrinus
8
29
7
9
15
13.6
Isopoda
Cyathura polita
1
0
1
0
0
0.4
Edotia montosa
1
0
0
1
0
0.4
Mysida
Americamysis almyra
1
1
3
2
0
1.4
Maxillopoda
Harpacticoida sp.
3
0
0
2
0
1.0
Ostracoda
Candonidae sp.
0
0
1
2
0
0.6
Cyprideis littoralis
5
1
10
4
2
4.4
Mollusca
Bivalvia
Bivalvia sp.
0
0
0
0
2
0.4
Macoma balthica
0
0
6
3
3
2.4
Macoma tenta
3
1
0
4
2
2.0
Gastropoda
Littoridinops sp.
10
8
3
23
10
10.8
Total taxa by sample
139
93
159
282
158
1-41

Total abundance = 831
Total taxa present = 25
Shannon -Wiener diversity = 2.08
1-41