The rainbow smelt, because of Its larger size, does not lend itself so readily to use as 

 a forage fish, save for larger predators. Indeed its size, dentition and its habits permit 

 it to feed on the young of those sport fishes which co-exist with it. When rainbow smelt 

 are to be introduced for winter angling, one might consider also introducing pygmy smelt as 

 forage for the rainbow smelt to increase their growth. 



When smelt introductions are made, it would be wise to take measures to avoid also 

 introducing the microsporidian Glugea hertwigi which infects several smelt populations 

 (Legault and Delisle, 1967; Delisle and Veilleux, 1969; Delisle, 1969b, 1972). 



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