Raw Biological Data for the RAPIDAN RIVER at Route 662 (M-3)

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

Spring 01

25

8

normal

535

40

105

0

0

0

0

0

4

137

0

5

14

62

1

31

0

9

0

0

0

0

368

8

Summer 01

14

11

low

77

50

19

0

0

0

0

0

0

31

0

2

99

0

1

23

3

22

0

0

0

7

207

5

Fall 01

20

4

low

56

90

0

1

0

0

0

0

1

16

0

6

176

0

6

1

0

2

0

0

0

0

205

6

Winter 02

20

7

normal

41

30

3

0

0

0

0

0

13

52

0

2

150

7

0

4

0

21

0

0

0

0

252

7

 

Spring 02

25

6

normal

n/d

60

17

0

0

0

0

0

2

33

1

1

123

1

7

10

0

10

0

0

0

0

205

7

 

Summer 02

12-15

5

low

70

75

11

0

0

0

0

0

9

91

1

12

93

17

6

2

0

5

0

0

0

19

266

8

 

Fall 02

25

10

normal

43.5

60

0

8

0

0

0

0

10

47

0

0

142

3

0

17

0

0

0

0

0

7

234

7

 
Return to M-3     n/d = No data