#Rivers in North Carolina contain small concentrations of
#mercury which can accumulate in fish over their lifetimes.
#Because mercury cannot be excreted from the body, it builds
#up in the tissues.  The concentration of mercury in
#fish tissue can be obtained at considerable expense by
#catching fish and sending samples to a lab for analysis.
#Directly measuring the mercury concentration in the water
#is impossible since it is almost always below detectable limits.
#A study was recently conducted in the Waccamaw and Lumber
#Rivers to investigate mercury levels in tissues of large
#mouth bass.  At several stations along each river, a 
#group of fish were caught, weighed, and measured.  In addition
#a fillet from each fish caught was sent to the lab so that
#the tissue concentration of mercury could be determined for each fish.
#Each fish caught corresponds to a single row of the file.
#In order, the recorded information for each fish is 
#
#	RIVER, 0=Lumber, 1=Waccamaw	
#	STATION	NUMBER 0,1,...,15			
#	LENGTH (centimetres)
#	WEIGHT (grams)
#	MERCURY CONCENTRATION (ppm) 
#
#
RIVER  STATION  LENGTH  WEIGHT MERCURY 
0 0 47 1616 1.6
0 0 48.7 1862 1.5
0 0 55.7 2855 1.7
0 0 45.2 1199 0.73
0 0 44.7 1320 0.56
0 0 43.8 1225 0.51
0 0 38.5 870 0.48
0 0 45.8 1455 0.95
0 0 44 1220 1.4
0 0 40.4 1033 0.5
0 1 47.7 3378 0.8
0 1 45.1 2920 0.34
0 1 43.5 2674 0.54
0 1 47.4 3675 0.69
0 1 41 1904 0.9
0 1 33.7 1080 0.48
0 1 33.5 1146 0.57
0 1 32.2 1002 0.41
0 1 32 894 0.61
0 1 29.5 754 0.38
0 1 34.9 1174 0.61
0 1 47.1 1435 1.5
0 1 44.2 1378 0.72
0 1 41 1059 1.8
0 1 41.6 873 1.6
0 1 39 857 0.98
0 1 38 743 0.88
0 1 36.1 622 1.5
0 1 33.4 503 0.73
0 2 32.8 406 1.2
0 2 31.4 362 1.1
0 2 33.6 360 1.6
0 2 29.5 313 0.87
0 2 30.5 314 0.9
0 2 27 238 0.91
0 2 30 336 0.61
0 2 30 329 0.85
0 2 33.5 448 0.99
0 2 31 263 1.5
0 2 29 271 0.7
0 2 65 4511 2.1
0 2 58 3597 1.5
0 3 36 600 1.5
0 3 36 650 0.91
0 3 44 1132 1.8
0 3 40.5 863 1.1
0 3 38.5 773 1.3
0 3 40 898 1.2
0 3 44.5 1301 1.6
0 3 50.5 2021 1.2
0 3 50 1883 1.2
0 3 47 1546 1.2
0 4 26 234 0.28
0 4 30 323 0.51
0 4 30 430 0.27
0 4 29 353 0.35
0 4 31 402 0.57
0 4 41 1042 0.66
0 4 36.5 723 0.49
0 4 38 709 0.51
0 4 44 1455 0.73
0 4 27.5 308 0.94
0 4 39 879 1.4
0 4 48 1396 2.7
0 4 51.5 2369 1.8
0 4 56 3421 3.1
0 5 30.5 400 0.5
0 5 42 1049 1.2
0 5 34 678 0.55
0 6 50.5 2228 3.5
0 6 44.5 1853 2.7
0 6 30 380 1.4
0 6 35 620 0.73
1 7 30.4 320 0.51
1 7 25.2 217 0.23
1 7 36 574 1.6
1 7 29.9 298 0.48
1 7 34.7 491 0.58
1 7 34.7 491 0.58
1 7 31.7 407 0.5
1 7 34.5 496 0.58
1 7 40.1 805 1.4
1 7 30.7 315 0.44
1 8 33 518 0.55
1 8 40.5 970 0.84
1 8 32 421 0.65
1 8 37 673 0.76
1 8 35.5 550 0.65
1 8 30 331 0.5
1 8 40 856 1.1
1 8 35 487 1
1 8 39.5 923 1.2
1 8 31 415 0.53
1 8 31.5 521 0.74
1 8 30 348 0.41
1 8 33 440 0.78
1 8 47 586 1.3
1 9 54 2664 1.8
1 9 57.6 3283 1.4
1 9 46.2 1573 0.75
1 10 34.8 491 0.57
1 10 34.5 560 0.69
1 10 38.5 870 1.8
1 10 40 864 0.93
1 10 46.4 1285 3.4
1 10 41.9 1188 2.4
1 10 46.2 1365 0.88
1 10 47.3 1632 1.5
1 10 47.1 1725 1.8
1 10 39 977 1.5
1 10 56.5 2451 2.1
1 10 46.1 1327 0.91 
1 10 28.5 303 0.61 
1 10 25.5 203 0.76 
1 10 40.2 796 0.86 
1 10 44.5 1202 2.2 
1 10 36.5 566 2.9 
1 10 33.3 460 0.89 
1 10 28.3 274 0.5 
1 10 46 1342 2.2 
1 10 36.7 647 2.4 
1 11 39 844 0.69 
1 11 53 3026 2.7 
1 11 43 1258 0.9
1 11 47.2 1699 1.9
1 11 36.5 656 0.65
1 11 43.2 1356 1.2
1 11 41.5 1018 0.83
1 11 36 874 1.3
1 11 36.2 708 1.3
1 12 27.3 250 0.28
1 12 26.7 252 0.21
1 12 27.5 283 0.14
1 12 39 743 0.39
1 12 33.9 465 0.39
1 12 29.6 329 0.9
1 12 46.5 1292 0.64
1 12 57.5 2401 1.4
1 12 49 1891 0.58
1 12 34.9 498 0.42
1 12 29 307 0.11
1 12 31.5 376 0.28
1 12 38.2 573 0.59
1 13 28.6 338 1.1
1 13 36.8 714 1.6
1 13 43.4 1251 1.3
1 13 48.1 1801 0.88
1 14 50.8 2131 1.8
1 14 46.8 1604 1.8
1 14 40.2 1090 1.2
1 14 58.7 3314 2.9
1 14 56.1 2629 3.4
1 14 48 1743 1.9
1 14 44.7 1454 2.4
1 14 43.6 1245 1.8
1 14 37.6 937 2.4 
1 14 40 869 1.4 
1 14 37.4 879 1.6  
1 14 46.5 772 1.7  
1 14 36 724 1.3  
1 15 50.4 1744 0.93  
1 15 59.2 3524 3.6  
1 15 58.4 2902 3.5  
1 15 54 2709 2.4  
1 15 53.7 2625 2.9  
1 15 49.5 1924 2.3  
1 15 47.5 1546 1.4   
1 15 54.2 3164 2.1  
1 15 45.4 1710 1.7  
1 15 41.7 1255 1.4  
1 15 36 702 0.92