20080868 Ver 2_I-45 2014 Drinkwater Ponar Downstream Raw Data Table_20150717

Table 1 -45. Numbers of benthic macroinvertebrates collected
in each
ponar grab sample at the
Drinkwater Creek downstream station in
May 2014.
Drinkwater
Creek Downstream
Samples
Species /taxon
1
2
3
4
5 Average
Annelida
Oligochaeta
Tubificidae sp. w/o hair
2
4
9
9
20
8.8
Polychaeta
Amphicteis floridus
0
0
2
0
2
0.8
Mediomastus ambiseta
12
13
27
34
27
22.6
Polydora cornuta
0
0
0
1
0
0.2
Streblospio benedicti
2
12
27
18
39
19.6
Arthropoda
Insecta
Diptera
Chironomus decorus
48
67
100
100
100
83.0
Parachironomus sp.
0
1
0
0
1
0.4
Malacostraca
Amphipoda
Gammarus mucronatus
2
9
100
59
100
54.0
Gammarus tigrinus
0
0
1
0
1
0.4
Mysida
Americamysis almya
0
0
0
2
1
0.6
Tanaidacea
Hargeria rapax
0
0
1
0
0
0.2
Maxillopoda
Sessilia
Balanus sp.
0
0
1
0
0
0.2
Ostracoda
Cyprideis littoralis
0
3
8
18
21
10.0
Cnidaria
Anthozoa
Actiniaria sp.
0
0
0
0
1
0.2
Mollusca
Bivalvia
Macoma balthica
3
4
10
6
9
6.4
Macoma tenta
8
10
10
0
22
10.0
Mulinia lateralis
0
0
1
0
4
1.0
Gastropoda
Littoridinops tenuipes
0
2
3
10
5
4.0
Nematoda
Nematoda sp.
0
0
0
1
0
0.2
Total taxa by sample
77
125
300
258
353
Total abundance = 1,113
Total taxa present = 19
Shannon - Wiener diversity = 1.85
1 -51