Macroinvertebrate Results for Summer 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 18 ft. 10 in. normal 71.5 F 80 s 5 2 0 0 0 0 2 63 0 4 88 47 2 2 0 3 0 0 0 4 222 8
C-2 Cedar Run 17 ft. 12 in. normal 73 F 35 s 3 1 0 0 0 0 0 25 0 4 150 7 60 13 0 0 0 0 0 1 264 8
C-5 Hazel River 20 ft. 4 in. normal 78 F 40 s 0 3 0 0 0 0 8 49 0 19 98 11 80 8 14 2 0 0 0 0 292 10
C-12 Rappahannock River 40 ft. 3 to 4 in. low 75 F 30 s 0 0 0 0 0 0 3 20 0 0 29 125 11 5 5 1 0 0 2 0 201 11
C-13 Robinson River 50 ft. 12 in. normal 69 F 20 s 0 0 0 0 0 0 1 37 1 5 46 11 34 12 268 1 0 0 2 5 423 8
C-14 Rapidan River 50 ft. 18 in. normal 78 F 50 s 3 0 0 0 0 0 0 80 1 1 7 0 11 12 95 0 1 0 0 0 211 10
C-15 Mountain Run (Trib) 5 ft. 9 in. normal 76 F 35 s 12 17 0 0 0 0 0 0 0 8 250 1 5 24 1 7 0 0 0 0 325 5
C-17 Mountain Run 14 ft. 6 in. low 78 F 110 s 14 16 0 0 0 0 0 0 0 2 2 0 18 55 3 0 0 8 1 0 119 4
C-18 Thornton River 30 ft. 8 in. normal 71.5 F 110 s 12 2 0 0 0 0 1 53 0 9 22 2 1 34 24 0 0 0 0 0 160 9
F-1 Carters Run 35 ft. 8 in. normal 69.8 F 20 s 9 0 0 0 0 0 24 154 1 19 193 13 90 0 1 3 0 0 2 0 509 10
F-3 Great Run (East) 10 ft. 4 in. normal 69.8 F 20 s 2 0 0 1 0 0 0 5 0 1 368 0 8 33 1 2 0 0 0 0 421 6
F-4 Fiery Run 10 ft. 10 in. normal 75 F 35 s 17 2 0 2 0 0 16 63 0 4 65 9 20 7 2 7 0 0 0 0 214 10
F-10 Great Run (West) 10 ft. 6 in. normal 73.4 F 20 s 1 0 0 1 0 0 5 12 1 5 110 58 75 2 0 0 0 0 10 0 280 9
F-12 Marsh Run 10 ft. 6 in. high 71.6 F 150 s 127 0 2 0 1 3 0 10 0 1 9 0 3 44 0 10 0 10 1 0 221 2
F-14 Thumb Run 40 ft. 8 in. normal 73.4 F 20 s 6 0 0 0 0 0 3 73 1 3 442 42 20 0 2 1 0 0 0 0 593 8
F-15 Deep Run 15 ft. 3 in. normal 69.8 F 40 s 3 0 2 0 0 0 25 49 5 19 72 41 39 3 0 11 0 0 7 0 276 11
G-4 South River 10 ft. 4 in. low 77 F 45 s 17 2 0 0 0 0 25 49 0 25 81 44 9 16 8 4 7 0 0 9 264 9
G-5 Conway River 12 ft. 8 in. normal 68 F 35 s 0 0 0 0 0 0 7 62 0 5 125 14 0 0 0 0 0 0 0 1 214 8
M-3 Rapidan River at 662 14 ft. 11 in. low 77 F 50 s 19 0 0 0 0 0 0 31 0 2 99 0 1 23 3 22 0 0 0 7 207 5
M-4 Beautiful Run 12 ft. 6 in. normal 66.2 F 90 s 29 1 0 2 0 0 0 28 0 15 50 3 16 93 8 17 0 0 6 6 274 7
M-5 Great Run 16 ft. 14 in. normal 71.6 F 90 s 3 6 0 0 0 0 1 28 0 7 18 2 22 43 17 4 0 0 0 10 161 10
M-6 Deep Run at 603 15 ft. 18 in. normal 74 F 65 s 24 0 0 0 0 0 0 39 0 13 96 11 13 8 9 21 0 0 0 7 241 7
M-9 White Oak Run 20 ft. 12 in. normal 75 F 65 s 7 1 0 0 0 0 0 47 0 15 87 18 10 1 28 0 0 0 0 9 223 9
M-11 Rose River 17 ft. 8 in. low 68 F 20 s 0 19 0 0 0 0 1 36 0 1 142 12 9 20 0 10 0 0 0 5 255 7
M-12 Robinson River at 670 23 ft. 10 in. low 60.8 F 80 s 1 0 0 0 0 0 3 33 0 18 49 0 15 47 0 15 0 0 0 27 208 10
M-14 Popham River 20 ft. 4 in. normal 74 F 90 s 1 0 0 0 0 0 2 44 0 16 20 15 25 2 0 6 0 0 0 0 131 12
M-16 Rapidan River at 671 50 ft. 5 in. normal 83 F 20 s 5 0 0 0 2 0 29 30 2 0 30 0 12 4 51 0 1 0 3 0 288 8
O-1 Blue Run 12 ft. 10 in. normal 70 F 20 s 5 0 0 0 0 0 0 28 0 0 166 15 41 102 0 15 0 0 0 9 381 8
O-2 Mine Run 20 ft. 12 in. normal 73.4 F 20 s 4 12 0 1 0 0 3 49 1 20 10 81 62 7 1 0 0 4 4 0 259 10
O-3 Mountain Run at 611 17.5 ft. 12 in. normal 70.7 F 20 s 18 4 0 0 0 0 1 45 0 5 56 17 98 11 1 0 0 1 1 0 258 8
R-2 Hughes River 30 ft. 16 in. normal 78 F 20 s 0 0 0 0 0 0 1 61 0 8 89 26 22 2 9 3 0 0 0 0 221 11
R-3 Rush River 20 ft. 4 in. normal 72 F 60 s 2 4 0 0 0 0 2 53 0 2 131 10 0 3 0 4 0 0 0 0 211 7
R-5 Thornton River (North Fork) 15 ft. 3 in. low 64 F 40 s 8 1 0 1 0 0 29 41 2 9 54 16 63 4 0 6 0 0 0 0 234 11
R-6 Thornton River (South Fork) 15 ft. 3 in. low 64 F 80 s 9 2 0 1 0 0 17 40 2 2 19 20 88 10 0 7 0 0 0 0 217 11
R-8 Piney River 6 ft. 5 in. low 68 F 20 s 10 2 0 0 0 0 7 18 0 0 92 24 2 32 17 4 0 0 0 0 208 6
R-9 Covington River 15 ft. 4 in. low 68 F 70 s 4 2 0 1 0 0 10 102 0 15 151 47 7 7 6 13 0 0 0 5 370 8
R-12 Battle Run 15 ft. 9 in. high 70 F 50 s 0 4 0 0 0 1 4 63 2 5 97 14 14 25 3 2 0 0 2 3 239 9
R-17 Jordan River 18 ft. 6 in. normal 69.8 F 20 s 0 0 4 0 0 0 2 76 0 4 207 17 7 0 0 1 0 0 0 0 318 7