20080868 Ver 2_I-35 2017 Jacobs Ponar Upstream Raw Data Table_20180629

Table 1-35. Numbers of benthic macroi nverteb rates collected in each ponar grab sample at the Jacobs
Creek upstream station in May 2017.
Species/taxon
Jacobs Creek Upstream Samples
1
2
3
4
5
Average
Annelida
Oligochaeta
Naididae sp. w/o hair
0
0
0
0
2
0.4
Polychaeta
Amphicteis floridus
12
48
0
100
34
38.8
Eteone heteropoda
0
0
0
4
4
1.6
Laeonereis culveri
4
14
0
8
16
8.4
Marenzellaria viridis
16
4
0
6
2
5.6
Polydora cornuta
0
0
0
2
0
0.4
Streblospio benedicti
0
2
0
0
2
0.8
Arthropoda
Insecta
Coleoptera
Berosus sp.
0
0
0
4
2
1.2
Diptera
Apedilum sp.
0
2
0
0
0
0.4
Bezzia/Palmonyia complex
4
0
0
0
2
1.2
Chironomus decorus
0
0
0
2
2
0.8
Dicrotendipes nervosus
6
0
0
8
6
4.0
Tabanus sp.
0
2
0
0
0
0.4
Hemiptera
Corixidae sp.
12
8
0
6
12
7.6
Trichocorixa sexcinta
2
2
0
4
0
1.6
Malacostraca
Amphipoda
Apocorophium lacustre
0
0
0
4
0
0.8
Apocorophium louisianum
0
0
0
18
32
10.0
Apocorophium sp.
0
12
0
84
44
28.0
Gammarus tigrinus
10
12
4
26
26
15.6
Ostracoda
Candonidae sp.
0
2
0
0
2
0.8
Cyprideis littoralis
0
4
0
8
0
2.4
Mollusca
Bivalvia
Rangia cuneata
2
0
0
0
0
0.4
Gastropoda
Littoridinops sp.
22
100
0
100
100
64.4
Nematoda
Nematoda sp.
0
2
2
0
8
2.4
Total taxa by sample
90
214
6
384
296
Total abundance = 990
Total taxa present = 22
Shannon -Wiener diversitv = 2.15
1-41