Macroinvertebrate Results for Winter 2002

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 18 ft. 4 in. normal 34 F 150 s 6 7 0 0 1 1 23 39 0 5 14 3 2 47 8 3 0 0 1 0 160 9
C-2 Cedar Run 8 to 10 ft. 12 in. low 43 F 20 s 8 4 0 0 0 0 9 41 1 0 12 29 59 46 1 3 0 0 3 0 216 11
C-5 Hazel River 12 ft. 6 in. normal 35 F 20 s 0 0 0 0 0 0 31 71 0 2 261 13 12 35 4 2 0 0 0 0 431 7
C-12 Rappahannock River 45 ft. 6 to 8 in. normal 39 F 20 s 1 1 0 0 0 0 3 120 0 1 63 30 22 22 5 2 1 0 3 0 362 11
C-13 Robinson River 50 ft. 12 in. normal 40 F 20 s 11 3 0 0 0 0 43 42 0 0 41 0 0 30 1 2 0 0 43 1 217 8
C-14 Rapidan River 50 ft. 18 in. normal 39 F 60 s 0 0 0 0 0 0 19 138 1 0 93 0 0 3 4 0 3 6 7 0 274 6
C-15 Mountain Run (Tributary) 5 ft. 9 in. normal 45 F 20 s 71 10 0 0 0 0 5 3 0 2 166 0 0 140 38 4 0 0 0 0 439 6
C-17 Mountain Run 14 ft. 6 in. low 38.5 F 165 s 0 26 0 0 0 7 0 0 0 0 82 0 0 74 8 0 0 0 0 0 197 4
C-18 Thornton River 20 to 30 ft. 12 in. normal 33 F 110 s 13 0 0 0 0 0 21 34 0 1 38 7 5 67 6 0 7 2 7 0 208 7
F-1 Carters Run 25 ft. 6 in. normal 33 F 20 s 6 0 0 0 0 0 0 135 1 1 48 14 17 80 72 1 0 0 7 0 382 11
F-3 Great Run (East) 8 to 10 ft. 6 in. normal 44.5 F 50 s 1 0 0 0 0 0 0 0 0 4 571 0 2 14 0 3 0 0 0 0 595 6
F-4 Fiery Run 6 ft. 8 in. normal 40 F 20 s 5 0 0 0 0 0 4 147 0 5 25 4 48 21 1 0 0 0 0 0 260 12
F-10 Great Run (West) 6 ft. 4 in. normal 41 F 20 s 2 2 0 1 0 1 83 46 0 4 68 44 12 10 9 1 0 0 1 0 284 10
F-12 Marsh Run 10 ft. 6 in. negligible 39 F 125 s 7 0 2 7 7 1 0 2 1 4 0 0 9 135 0 9 1 32 0 0 217 3
F-14 Thumb Run 20 ft. 8 in. normal 34 F 20 s 3 2 0 0 0 0 2 163 0 0 170 11 51 68 0 2 0 0 6 0 479 10
F-15 Deep Run 15 ft. 6 in. normal 37.5 F 20 s 0 0 0 1 0 0 60 47 0 6 69 62 20 4 2 9 0 0 7 0 287 11
G-4 South River 18 ft. 6 in. low 43 F 20 s 0 0 0 0 0 0 16 144 0 9 109 43 5 46 89 0 0 0 0 0 461 9
G-5 Conway River 20 ft. 8 in. low 38 F 20 s 0 0 0 0 0 0 10 111 0 0 171 49 2 52 15 7 0 0 0 0 417 8
G-6 White Run 16 ft. 12 in. normal 40 F 35 s 4 0 0 0 0 0 18 98 0 7 22 7 7 122 13 7 0 0 0 3 308 10
M-3 Rapidan River at 662 20 ft. 7 in. normal 41 F 30 s 3 0 0 0 0 0 13 52 0 2 150 7 0 4 0 21 0 0 0 0 252 7
M-4 Beautiful Run 15 ft. 7 in. normal 43 F 60 s 3 0 0 0 0 0 0 28 0 4 128 0 0 60 36 2 0 0 2 0 263 6
M-5 Great Run 16 ft. 4 in. low 35.5 F 195 s 3 0 0 0 0 0 8 17 0 0 13 0 9 107 0 4 0 0 0 0 161 7
M-6 Deep Run at 603 12 ft. 12 in. normal 50 F 20 s 24 0 0 0 0 0 138 4 0 2 22 3 10 23 38 5 0 0 1 0 270 10
M-9 White Oak Run 8 ft. 12 in. normal 38 F 20 s 10 0 0 0 0 0 56 6 1 0 92 1 1 25 2 65 0 0 0 0 259 7
M-11 Rose River 15 ft. 10 in. normal 42 F 20 s 2 0 0 0 0 0 9 73 0 0 125 10 0 36 4 0 0 0 0 0 257 10
M-12 Robinson River at 670 15 ft. 12 in. normal 36 F 20 s 0 0 0 0 0 0 17 76 0 0 59 15 0 36 45 0 0 0 0 0 250 9
M-14 Popham River 18 ft. 12 in. normal 38 F 20 s 9 1 0 0 0 0 25 25 0 1 49 7 1 166 142 24 0 0 0 0 451 6
M-16 Rapidan River at 671 25 ft. 10 in. normal 43 F 75 s 1 0 0 0 0 0 23 60 0 10 61 44 6 13 0 9 3 0 0 0 230 9
O-1 Blue Run 12 ft. 6 in. normal 40 F 65 s 3 0 0 0 0 0 2 8 1 0 110 5 39 8 5 12 0 12 0 0 205 5
O-2 Mine Run 10 ft. 10 in. low 35.5 F 40 s 20 8 0 0 0 0 29 22 0 2 14 42 32 46 4 0 0 0 14 0 233 9
O-3 Mountain Run at 611 13 ft. 10 in. low 37.5 F 20 s 15 46 0 0 0 0 13 11 0 0 29 39 66 15 9 1 4 9 4 0 261 7
O-5 Laurel Run 7 ft. 4 in. normal 46.5 F 105 s 12 4 0 0 0 1 0 28 0 7 130 11 24 55 0 5 2 0 0 0 279 7
R-2 Hughes River 25 ft. 12 in. normal 36 F 20 s 6 1 0 0 0 0 29 139 1 4 81 9 26 32 14 4 0 0 0 0 346 11
R-3 Rush River 8 ft. 12 in. normal 31 F 30 s 0 8 0 0 0 0 6 98 0 0 24 15 0 32 20 0 0 0 0 1 204 10
R-5 Thornton River (North Fork) 25 ft. 10 in. normal 38 F 20 s 4 0 0 0 0 0 67 38 0 2 53 41 75 24 7 5 0 0 0 0 316 12
R-6 Thornton River (South Fork) 15 ft. 8 in. low 36 F 20 s 3 0 0 0 0 0 20 22 0 4 26 28 107 15 0 0 0 0 0 0 225 11
R-8 Piney River 15 ft. 6 in. low 36 F 20 s 5 0 0 0 0 0 31 16 0 2 75 15 29 70 7 0 0 0 0 0 250 10
R-9 Covington River 15 ft. 6 in. normal 37 F 20 s 7 0 0 0 0 0 1 71 0 2 0 15 10 10 154 48 0 0 0 0 318 8
R-12 Battle Run 8 ft. 6 to 8 in. normal 40 F 25 s 6 0 0 0 0 0 47 57 1 1 109 3 12 41 0 1 0 0 3 0 287 9
R-17 Jordan River 25 ft. 8 in. normal 37.5 F 20 s 2 5 0 0 0 1 0 35 0 6 80 27 5 58 1 0 0 0 19 0 239 7