20080868 Ver 2_I-43 2015 Drinkwater Ponar Upstream Raw Data Table_20160708

Table 1-43. Numbers of benthic macroinvertebrates collected in each ponar grab sample at the
Drinkwater Creek upstream station in May 2015.
Species/taxon
Drinkwater Creek
Upstream Samples
1
2
3
4
5
Average
Annelida
Oligochaeta
Tubificidae sp. w/o hair
7
0
0
0
1
1.6
Polychaeta
Amphicteis floridus
10
7
7
1
2
5.4
Eteone heteropoda
1
0
0
1
0
0.4
Laeonereis culveri
2
0
1
0
0
0.6
Marenzelleria viridis
2
0
0
0
0
0.4
Streblospio benedicti
1
3
0
0
1
1.0
Arthropoda
Insecta
Coleoptera
Berosus sp.
5
0
0
0
0
1.0
Diptera
Bezzia/Palpomyia complex
2
0
1
1
2
1.2
Chironomus decorus
24
15
12
6
6
12.6
Dicrotendipes nervosus
1
0
0
0
0
0.2
Goeldichironomus devineyae
3
0
0
0
0
0.6
Tanypus neopunctipennis
8
4
3
3
2
4.0
Tanytarsus sp.
15
4
0
4
7
6.0
Malacostraca
Amphipoda
Apocorophium sp.
1
0
1
0
1
0.6
Gammarus tigrinus
2
0
4
0
0
1.2
Mysida
Americamysis almyra
0
0
1
0
0
0.2
Ostracoda
Candonidae sp.
0
4
0
0
1
1.0
Cyprideis littoralis
1
2
2
0
0
1.0
Mollusca
Bivalvia
Macoma balthica
0
0
0
1
0
0.2
Mytilopsis leucophaeata
0
0
1
0
0
0.2
Gastropoda
Littoridinops sp.
22
18
10
5
12
13.4
Nematoda
Nematoda sp.
1
0
0
0
0
0.2
Total taxa by sample
108
57
43
22
35
Total abundance = 265
Total taxa present = 22
Shannon -Wiener diversitv = 2.27
1-51