Macroinvertebrate Results for Fall 2001

Site Stream Name Avg. Width Avg. Depth Flow Rate Temp Collection Time Worms Flatworms Leeches Crayfish 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
C-1 Crooked Run 10 ft. 3 in. low 56 F 90 s 6 3 0 1 0 0 0 32 0 4 48 76 34 1 0 5 0 0 7 0 217 10
C-2 Cedar Run 22 ft. 7 in. low 57 F 25 s 10 0 0 1 1 0 0 38 0 4 58 57 35 8 0 1 0 0 0 0 213 10
C-5 Hazel River 15 ft. 6 in. low 56 F 40 s 1 0 0 0 0 0 39 28 0 4 197 49 110 1 0 0 0 0 0 0 429 9
C-12 Rappahannock River 45 ft. 7 in. normal 57 F 120 s 29 0 0 0 0 0 12 22 0 1 26 17 33 33 8 2 16 0 31 0 230 9
C-13 Robinson River 50 ft. 8 in. normal 50 F 40 s 0 0 0 0 0 0 10 12 0 1 125 55 27 4 3 2 0 2 30 1 272 7
C-14 Rapidan River 45 ft. 14 in. low 48 F 40 s 0 8 0 0 0 0 10 87 9 1 83 7 12 7 1 4 0 6 2 0 237 6
C-15 Mountain Run (Tributary) 5 ft. 9 in. normal 56 F 50 s 28 12 0 1 0 0 0 7 1 1 350 0 3 25 2 3 0 0 0 0 433 5
C-17 Mountain Run 14 ft. 6 in. low 53.5 F 120 s 3 39 0 0 0 1 0 1 0 1 153 0 11 0 0 0 0 1 0 0 210 5
C-18 Thornton River 10 ft. 6 in. low 55 F 110 s 23 0 4 0 0 0 3 43 1 0 59 4 23 18 4 0 16 0 21 0 219 8
F-1 Carters Run 25 ft. 8 in. normal 46.4 F 30 s 9 0 0 0 0 0 1 55 0 0 53 40 54 2 0 2 0 0 18 0 234 10
F-3 Great Run (East) 9 ft. 5 in. normal 57.2 F 40 s 9 4 0 0 0 0 0 13 0 6 352 0 38 14 0 4 0 0 0 0 440 8
F-4 Fiery Run 6 ft. 8 in. low 62.5 F 20 s 7 1 0 0 0 0 5 104 0 1 25 7 60 13 1 1 0 0 0 0 225 12
F-10 Great Run (West) 6 ft. 4 in. normal 53.6 F 20 s 2 1 0 0 0 1 2 13 0 9 50 52 83 13 0 1 0 0 0 0 227 10
F-12 Marsh Run 10 ft. 8 in. no flow 44.6 F 20 s 31 12 4 1 6 109 0 17 3 0 1 0 12 85 0 0 0 46 3 3 333 3
F-14 Thumb Run 40 ft. 8 in. normal 57.2 F 20 s 13 1 0 0 8 0 0 38 0 1 65 98 52 0 2 0 0 3 0 0 281 9
F-15 Deep Run 15 ft. 4 in. normal 55.4 F 30 s 1 0 0 0 0 0 11 65 2 4 67 52 16 2 6 15 0 3 3 1 248 11
G-4 South River 15 ft. 6 in. low 48 F 20 s 2 1 0 0 0 0 10 82 0 12 180 147 6 18 5 7 2 0 0 0 472 8
G-5 Conway River 15 ft. 6 in. low 51 F 12 s 0 0 0 0 0 0 0 88 0 1 398 20 0 7 0 4 0 0 0 0 518 7
G-6 White Run 12 ft. 10 in. low 45 F 50 s 0 0 0 2 0 0 0 132 0 4 96 28 0 12 2 9 0 0 0 0 285 9
M-3 Rapidan River at 662 20 ft. 4 in. low 56 F 90 s 0 1 0 0 0 0 1 16 0 6 176 0 6 1 0 2 0 0 0 0 205 6
M-4 Beautiful Run 15 ft. 7 in. normal 52.7 F 60 s 3 3 0 0 0 0 0 43 0 9 167 0 0 33 0 3 0 0 6 0 267 7
M-5 Great Run 16 ft. 6 in. low 58.1 F 120 s 2 15 0 0 0 0 3 32 0 7 98 0 13 20 24 13 0 2 0 17 246 5
M-6 Deep Run at 603 10 ft. 9 in. normal 45 F 60 s 3 4 0 0 0 0 28 2 0 3 99 18 2 10 1 31 0 0 9 4 214 6
M-9 White Oak Run 12 ft. 12 in. normal 62 F 60 s 3 2 0 0 0 0 31 22 0 3 117 59 1 3 5 13 0 0 0 2 261 8
M-11 Rose River 7 ft. 6 in. low 49 F 20 s 6 0 0 0 0 0 35 52 0 3 56 94 6 13 3 0 0 0 0 0 268 9
M-12 Robinson River at 670 20 ft. 6 in. low 55 F 45 s 0 0 0 0 0 0 19 22 0 3 84 20 5 45 5 0 0 0 0 12 215 7
M-14 Popham River 8 ft. 3 in. low 62 F 90 s 0 7 0 0 0 0 0 20 1 6 59 45 3 0 1 1 0 0 0 0 143 8
M-16 Rapidan River at 671 25 ft. 8 in. low 58 F 55 s 16 0 0 0 1 0 23 31 0 3 62 27 12 24 4 0 5 0 0 0 208 9
O-1 Blue Run 12 ft. 4 in. low 58 F 55 s 38 0 0 3 0 2 0 29 4 2 19 14 23 29 19 11 0 17 0 0 210 6
O-2 Mine Run 20 ft. 9 in. low 56.3 F 30 s 17 19 0 2 0 0 2 67 0 7 28 46 33 6 0 3 0 0 1 0 231 11
O-3 Mountain Run at 611 25 ft. 6 in. low 55.4 F 25 s 36 11 0 0 0 0 0 152 0 2 174 54 109 17 0 12 0 0 0 0 567 10
O-5 Laurel Run 6 ft. 4 in. low 51 F 190 s 0 0 0 0 0 0 0 26 0 1 53 49 12 6 1 15 7 0 0 2 172 11
R-2 Hughes River 30 ft. 9 in. low 60 F 40 s 0 0 0 0 0 0 1 20 0 6 94 6 70 6 0 8 0 0 0 0 211 8
R-3 Rush River 4 ft. 3 in. low 62 F 90 s 0 12 0 1 0 0 0 139 0 0 20 4 6 0 0 7 0 0 0 0 189 10
R-5 Thornton River (North Fork) 10 ft. 3 in. low 59 F 60 s 0 3 0 0 0 0 9 57 0 9 49 16 30 0 2 0 0 0 0 31 206 11
R-6 Thornton River (South Fork) 10 ft. 3 in. low 46.4 F 70 s 10 0 0 0 0 0 17 104 0 7 33 15 31 11 0 1 0 0 0 0 229 12
R-8 Piney River 10 ft. 6 in. low 46.4 F 120 s 6 0 0 0 0 0 32 29 0 2 41 19 86 11 1 2 0 0 0 0 229 12
R-9 Covington River 25 ft. 6 in. low 57 F 90 s 13 0 0 0 0 0 4 98 0 7 8 18 29 6 6 5 0 0 0 15 209 11
R-12 Battle Run 15 ft. 6 in. low 55 F 40 s 3 3 0 0 0 0 0 46 0 7 119 6 23 13 1 0 0 0 19 0 240 8
R-17 Jordan River 18 ft. 7 in. normal 54.5 F 20 s 4 14 0 1 0 0 2 88 0 6 104 66 10 6 0 0 1 0 6 0 308 9