20080868 Ver 2_I-63 2017 Huddles Ponar Upstream Raw Data Table_20180629

Table 1-63. Numbers of benthic macroinvertebrates collected in each ponar grab sample at the
Huddles Cut upstream station in May 2017.
Species/taxon
Huddles Cut Upstream Samples
1
2
3
4
5
Average
Annelida
Oligochaeta
Tubificoides heterochaetus
8
0
1
0
0
1.8
Polychaeta
Amphicteis floridus
3
3
0
0
1
1.4
Heteromastus filiformis
0
0
0
0
1
0.2
Laeonereis culveri
7
6
5
3
3
4.8
Mediomastus ambiseta
0
0
0
1
0
0.2
Streblospio benedicti
1
0
0
0
0
0.2
Arthropoda
Insecta
Coleoptera
Berosus sp.
3
1
0
0
0
0.8
Diptera
Bezzia/Palpomyia complex
4
0
1
2
3
2.0
Chironomus decorus
16
7
5
8
3
7.8
Tanypus neopunctipennis
3
1
0
0
1
1.0
Tanytarsus sp.
1
0
0
2
2
1.0
Malacostraca
Amphipoda
Apocorophium sp.
2
4
0
2
0
1.6
Gammarus tigrinus
0
0
0
0
1
0.2
Uhlorchestia uhleri
0
0
0
0
1
0.2
Decapoda
Palaemonetes pugio
0
0
0
2
0
0.4
Isopoda
Edotia montosa
0
0
0
0
2
0.4
Ostracoda
Cyprideis littoralis
100
19
13
2
12
29.2
Mollusca
Bivalvia
Macoma tenta
6
4
3
4
2
3.8
Rangia cuneata
5
0
0
0
0
1.0
Gastropoda
Littoridinops sp.
5
0
2
0
0
1.4
Nematoda
Nematoda sp.
1
0
0
0
0
0.2
Total taxa by sample
165
1 45
1 30
1 26
1 32
Total abundance = 298
Total taxa present = 21
Shannon -Wiener diversity = 1.93