20080868 Ver 2_I-43 2017 Drinkwater Ponar Upstream Raw Data Table_20180629

Table 1-43. Numbers of benthic macroinvertebrates collected in each ponar grab sample at the
Drinkwater Creek upstream station in May 2017.
Species/taxon
Drinkwater Creek
Upstream Samples
1
2
3
4
5
Average
Annelida
Polychaeta
Amphicteis floridus
84
80
88
42
15
61.8
Laeonereis culveri
0
6
0
2
3
2.2
Streblospio benedicti
2
0
0
0
0
0.4
Arthropoda
Insecta
Coleoptera
eerosus sp.
4
0
2
2
0
1.6
Diptera
Bezzia/Palpomyia complex
0
6
0
0
0
1.2
Chironomus decorus
0
0
2
0
0
0.4
Dicrotendipes nervosus
4
0
0
0
0
0.8
Parachironomus sp.
0
0
4
0
0
0.8
Tanypus neopunctipennis
0
2
0
0
0
0.4
Tanytarsus sp.
8
4
6
4
3
5.0
Hemiptera
Corixidae sp.
8
0
4
4
0
3.2
Malacostraca
Amphipoda
Apocorophium louisianum
0
0
6
2
0
1.6
Apocorophium sp.
8
14
6
4
3
7.0
Gammarus tigrinus
100
100
26
46
6
55.6
Mysida
Americamysis almyra
0
2
0
0
0
0.4
Ostracoda
Candonidae sp.
6
8
0
0
0
2.8
Cyprideis littoralis
10
0
0
2
0
2.4
Mollusca
Bivalvia
Rangia cuneata
2
0
0
0
0
0.4
Gastropoda
Littoridinops sp.
100
54
6
8
6
34.8
Nematoda
Nematoda sp.
4
4
2
6
0
3.2
Total taxa by sample
340
280
152
122
36
Total abundance = 930
Total taxa present = 19
Shannon -Wiener diversity = 1.80
1-49