20080868 Ver 2_I-31 2017 Jacks Ponar Upstream Raw Data Table_20180629

Table 1-31. Numbers of benthic macro inverte brates collected in each ponar grab sample at the Jacks
Creek upstream station in May 2017.
Species/taxon
Jacks Creek Upstream Samples
1
2
3
4
5
Average
Annelida
Polychaeta
Amphicteis floridus
20
4
10
5
15
10.8
Eteone heteropoda
0
0
0
1
0
0.2
Streblospio benedicti
0
0
2
0
0
0.4
Arthropoda
Insecta
Diptera
Apedilum sp.
0
0
2
0
0
0.4
Bezzia/Palmonyia complex
3
1
2
1
1
1.6
Chironomus decorus
11
5
14
4
20
10.8
Dicrotendipes nervosus
3
19
14
2
0
7.6
Parachironomus sp.
0
3
2
0
1
1.2
Tanypus neopunctipennis
1
0
0
3
1
1.0
Tanytarsus sp.
15
12
10
11
18
13.2
Hemiptera
Corixidae sp.
0
0
0
5
1
1.2
Pelocoris femoratus
0
1
0
0
0
0.2
Trichoptera
Oecetis inconspicua
0
0
0
0
1
0.2
Malacostraca
Amphipoda
Apocorophium lacustre
0
1
0
0
1
0.4
Apocorophium sp.
1
7
0
0
0
1.6
Gammarus tigrinus
46
35
24
11
46
32.4
Ostracoda
Cyprideis littoralis
9
3
0
1
2
3.0
Mollusca
Bivalvia
Rangia cuneata
0
1
2
0
1
0.8
Gastropoda
Littoridinops sp.
22
15
22
1
11
14.2
Nematoda
Nematoda sp.
9
9
12
5
8
8.6
Total taxa by sample
140
116
116
50
127
Total abundance = 549
Total taxa present = 19
Shannon -Wiener diversity = 2.22
1-37