Distribution of Fishes in U.S. Streams 

 Tributary to Lake Superior 



By 

 HARRY H. MOORE and ROBERT A. BRAEM 



ABSTRACT 



Experimental sea lamprey control by the Bureau of Commercial Fisheries on 

 Lake Superior streams provided many new distributional records of the fish fauna. 

 Seventy-one species were recorded from 175 streams. Specimens were collected at 

 the electromechanical barriers, with electric shockers, with fyke nets, and during 

 chemical treatment of streams. 



Maps showing stream records of each species are presented. 



INTRODUCTION 



Research by the Bureau of Commercial 

 Fisheries, under contract with the Great Lakes 

 Fishery Commission, to control the sea 

 lamprey, Petromyzon marinus Linnaeus, pro- 

 vided the opportunity to add to the knowledge 

 of the fish fauna of Lake Superior tributaries. 

 This report contains data on species records 

 from streams that enter Lake Superior in 

 Michigan, Wisconsin, and Minnesota. Collec- 

 tions of biological and rheological data have 

 been carried on since 1950 when a mechanical 

 weir was constructed on Pendills Creek, 

 Chippewa County, Mich. (Applegate and Smith, 

 1950). 



Common and scientific names are those 

 published by the American Fisheries Society 

 (I960). Each species in this report is referred 

 to by number. The species number, scientific 

 and common names, and page number of dis- 

 tributional maps of the fishes follow: 

 Petromyzontidae: 



1. Ichthyomyzon unicuspis Hubbs and 

 silver lamprey (adult). 



Ichthyomyzon 

 Trautman, 

 p. 10 

 Ichthyomyzon 



fossor Reighard and 

 Cummins, northern brook lamprey 

 (adult), p. 11 

 2D, Ichthyomyzon sp., silver and northern 

 brook lampreys (ammocetes), p. 12 



3. Petromyzon marinus Linnaeus, sea 

 lamprey, p. 13 



4. Lampetra lamottei (Lesueur ), American 

 brook lamprey, p. 14 



Acipenseridae: 



5. Acipenser fulvescens Rafinesque, lake 

 sturgeon, p. 15 



Note.--Harry H. Moore, Fishery Biologist (General), 

 and Robert A. Braem, Fishery Biologist (General), Bureau 

 of Commercial Fisheries, Ann Arbor, Mich. 



Lepisosteidae: 



6. Lepisosteus osseus (Linnaeus), long- 

 nose gar, p. 15 



Amiidae: 



7. Amia calva Linnaeus, bowfin, p. 15 

 Clupeidae: 



8. Alosa pseudoharengus (Wilson), alewife. 

 p. 15 



Salmonidae: 



9. Salmo trutta Linnaeus, brown trout, 



P- 16 



10. Salmo gairdneri Richardson, rainbow 



trout, p. 17 



11. Oncorhynchus gorbuscha (Walbaum), 

 pink salmon, p. 18 



12. Salvelinus fontinalis (Mitchill), brook 

 trout, p. 19 



13. Salvelinus namaycush (Walbaum), lake 

 trout, p. 18 



14. Coregonus artedii Lesueur, lake herring, 



P-18 



15. Prosopium cylindraceum (Pallas), round 



whitefish, p. 18 

 Osmeridae: 



16. Osmerus mordax (Mitchill), American 

 smelt, p. 20 



Umbridae: 



17. Umbra limi (Kirtland), central mud- 

 minnow, p. 2 1 



Esocidae: 



18. Esox lucius Linnaeus, northern pike, 

 p. 22 



19. Exos masquinongy Mitchill, muskel- 

 lunge, p. 22 



Cyprinidae: 

 2(). Cyprinus carpio Linnaeus, carp, p. 23 



21. Semotilus atromaculatus (Mitchill), 

 creek chub, p. 24 



22, Semotilus margarita (Cope), pearl dace, 

 p, 23 



