Raw Biological Data for the COVINGTON RIVER at Route 621 (R-9)

 

Cycle

Avg. Width (ft)

Avg. Depth (in)

Flow Rate

Temp (°F)

Collection Time (sec)

Worms

Flatworms

Leeches

Crayfishes

Sowbugs

Scuds

Stoneflies

Mayflies

Dragonflies Damselflies

Hellgrammites Fishflies Alderflies

Net-spinning Caddisflies

Most Caddisflies

Beetles

Midges

Black Flies

Most True Flies

Gilled Snails

Lunged Snails

Clams

Other

Total

Index Value

Summer 01

15

4

low

68

70

4

2

0

1

0

0

10

102

0

15

151

47

7

7

6

13

0

0

0

5

370

8

Fall 01

25

6

low

57

90

13

0

0

0

0

0

4

98

0

7

8

18

29

6

6

5

0

0

0

15

209

11

Winter 02

15

6

normal

37

20

7

0

0

0

0

0

1

71

0

2

0

15

10

10

154

48

0

0

0

0

318

8

Spring 02

20

12

high

53

40

96

2

0

0

0

0

19

75

0

7

5

25

40

8

0

0

0

0

0

0

281

7

Summer 02

10

4

no flow

 

Fall 02

 

no flow

Winter 03 17 7 normal 33 50 2 0 0 0 0 0 101 1 0 1 0 8 3 17 308 1 0 1 0 0 443 7
Spring 03 25 14 high 54 30 9 1 0 0 0 0 72 90 0 1 2 3 7 21 8 1 0 0 0 0 215 11
Spring 08 25 14 normal 56.3 30 1 0 0 0 0 0 26 233 0 0 12 1 3 104 20 0 0 0 0 0 400 10
Summer 08 33 24 high 71.6 48 0 0 0 0 0 0 31 21 0 0 36 6 1 35 117 0 0 0 0 1 247 7
Fall 08 25 12 normal 44.6 30 6 0 0 0 0 0 59 67 0 1 207 38 20 4 9 2 0 0 0 0 413 9
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