Salmon trout (Salvelinus namaycush, Walb.) and whitefish (Coregonus clupeiformis, Mitchill) are the most numerous and valuable.
The fishing industry of Lake Superior is important, salmon-trout (Salvelinus namaycush, Walb), ranging from 10 to 50 lb in weight, being gathered from the individual fishermen by steam tenders and shipped by rail to city markets.
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