WISCONSIN 



M I C H I 6 A N 



Figure 9, — Rainbow trout, Sal mo gairdneri. 



10. Salmo gairdneri Richardson, rainbow trout (fig. 9) 



The rainbow trout, an exotic species, is well established in Lake Superior. Traps at the sea 

 lamprey barriers capture adult rainbow trout each spring, and large numbers have been observed 

 upstream before the barriers were activated. 



Records by state and county: 



Michigan - Chippewa 1, 3, 4, 5, 6, 7, 8, 9, 12, 14; Luce 17, 18, 19, 20; Alger 21, 22, 23, 24, 

 25, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39; Marquette 40, 41, 42, 43, 44, 46, 47, 48, 49, 

 50, 51, 52, 53; Baraga 54, 55, 56, 57, 58, 59, 60, 62, 63; Houghton 64, 65, 66, 67, 69, 70, 83, 84, 

 85, 87, 88, 89, 91, 92, 93; Keweenaw 71, 72, 73, 76, 77, 79, 81, 121, 127; Ontonagon 94, 96, 97, 

 99, 103, 111, 112, 113; Gogebic 118, 119. 



Wisconsin - Iron 128, 129, 130; Ashland 131; Bayfield 134, 135, 137, 138, 139, 140, 143, 144, 

 147, 148, 149; Douglas 152, 153, 154, 155, 156. 



Minnesota - St. Louis 159, 160; Lake 162, 163; Cook 171, 172, 173, 174. 



17 



