20080868 Ver 2_I-61 2017 Muddy Ponar Downstream Raw Data Table_20180629

Table 1-61. Numbers of benthic macroinvertebrates collected in each ponar grab sample at the Muddy
Creek downstream station in May 2017.
Species/taxon
Muddy Creek Downstream Samples
1
2
3
4
5
Average
Annelida
Oligochaeta
Naididae sp. w/o hair
1
0 0
0
0
0.2
Polychaeta
Amphicteis floridus
0
0 1
0
0
0.2
Eteone heteropoda
0
2 4
3
3
2.4
Marenzelleria virids
8
13 16
28
18
16.6
Mediomastus ambiseta
0
3 4
1
1
1.8
Streblospio benedicti
5
1 5
3
2
3.2
Arthropoda
Insecta
Diptera
Chironomus decorus
0
0 1
0
0
0.2
Hemiptera
Corixidae sp.
0
0 1
0
0
0.2
Malacostraca
Amphipoda
Apocorophium louisianum
0
0 1
0
0
0.2
Apocorophium sp.
3
2 9
1
0
3.0
Gammarus tigrinus
6
10 7
3
7
6.6
Isopoda
Edotia montosa
0
0 0
0
3
0.6
Mysida
Americamysis almyra
0
0 2
1
0
0.6
Ostracoda
Candonidae sp.
1
1 4
1
0
1.4
Cyprideis littoralis
1
0 0
2
0
0.6
Mollusca
Bivalvia
Macoma balthica
1
0 2
3
1
1.4
Macoma tenta
0
1 0
1
0
0.4
Mytilopsis leucophaeata
0
1 1
0
0
0.4
Rangia cuneata
1
1 1
1
0
0.8
Gastropoda
Littoridinops sp.
0
0 3
0
0
0.6
Total taxa by sample
27
35 62
48
35
Total abundance = 207
Total taxa present = 19
Shannon -Wiener diversity = 2.12
1-67