FOREST, LAKE, AND RIVER 



of which monographs have been given on preced- 

 ing pages, have the habit of entering fresh-water 

 streams, impelled to do so in search of food, or by 

 the natural law of reproduction. These fishes are 

 called anadromous, and their most prominent rep- 

 resentatives are the salmon, the smelt, the striped 

 bass, the white perch, the shad and other herrings, 

 particularly the alewives. Several of these lose 

 their sea-going instinct and become landlocked. 

 During their migrations, and when purely inland 

 in habitat, a number of them yield excellent sport 

 to the hook-and-line fisherman. 



In addition to the above-named class, there are 

 a number of others, known and classified as having 

 a salt-water habitat, that visit the upper tidal waters, 

 and occasionally wander into the streams, evidently 

 for the sole purpose of finding new feeding grounds. 

 In fact, the ranges of fishes of the " bitter waters " 

 is as yet undetermined, and presents as great diffi- 

 culty in ascertaining the accurate limits of its 

 boundaries, as is found in defining that of our 

 inland fishes. 



Again, some fresh-water species find a congenial 

 habitat in salt water. This trait is strikingly 

 shown in the so-called pike of the Chesapeake Bay, 

 which is the eastern pond pickerel {Lucius reticu- 

 latus) of the fresh waters east of the Alleghanies. 

 252 



