20080868 Ver 2_I-73 2014 Duck Ponar Downstream Raw Data Table_20150717

Table 1 -73. Numbers of benthic m acroi nve rteb rates collected in each ponar grab sample at the Duck
Creek downstream station in May 2014.
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Duck Creek Downstream Samples
Species /taxon
1
2
3
4
5
Average
Annelida
Polychaeta
Amphicteis floridus
1
0
1
1
2
1.0
Marenzelleria viridis
0
0
0
0
1
0.2
Mediomastus ambiseta
4
1
2
1
0
1.6
Streblospio benedicti
4
30
14
5
3
11.2
Arthropoda
Insecta
Diptera
Chironomus decorus
100
100
100
100
100
100.0
Goeldichironomus devineyae
3
0
0
0
0
0.6
Tanytarsus sp.
1
0
0
0
0
0.2
Malacostraca
Amphipoda
Apocorophium lacustre
0
1
0
0
0
0.2
Gammarus tigrinus
3
0
1
1
2
1.4
Isopoda
Edotia montosa
1
0
1
0
0
0.4
Mysida
Americamysis almyra
0
0
6
0
1
1.4
Tanaidacea
Hargeria rapax
1
0
0
1
0
0.4
Ostracoda
Cyprideis littoralis
1
0
1
0
1
0.6
Mollusca
Bivalvia
Macoma balthica
3
3
1
2
0
1.8
Macoma tenta
3
1
2
5
2
2.6
Gastropoda
Littoridinops tenuipes
5
3
1
3
3
3.0
Total taxa by sample
130
139
130
119
115
Total abundance = 633
Total taxa present = 16
Shannon - Wiener diversity = 0.94
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