J. PISCICULTURE AND THE FISHERIES. 427 



so-called Otsego bass, formerly so plentiful, but which of late 

 years have become very scarce. This delicious fish is not a 

 bass, as its name would seem to indicate, but belongs to the 

 whitefish family, and is scientifically known as Coregonus 

 otsego, differing but slightly, however, in external form from 

 the whitefish of the upper lakes. 



In the autumn of 1871 a hatching-house was established, 

 under the direction of Captain Cooper, in which 74,000 

 young bass were reared, and placed in the lake in March, 

 1872, together with a number of young salmon-trout from 

 the upper lakes. In the winter of 1873 100,000 more young 

 bass were planted, together with 20,000 salmon-trout, and a 

 large number of bass taken during the present year are now 

 in the hatching-house at Cooperstown. This large supply 

 will doubtless soon manifest itself in the increased number 

 of marketable fish; and if the effort be continued for a few 

 years longer, there can be no question as to the ultimate res- 

 toration of the original abundance. Many hundreds of young 

 bass and at least a thousand rock-bass have been placed in 

 the lake, which will undoubtedly multiply in due proportion. 

 The introduction of rock-bass will add a new element to the 

 ichthyology of the Susquehanna River, to which this fish is 

 not originally native. 



CAUTION IN PLANTING YOUNG SALMON. 



According to Riedel, care should be taken, in planting 

 young salmon, not to introduce them into brooks already oc- 

 cupied by trout, as the latter show the greatest avidity in at- 

 tacking the new-comers, and soon exterminate them. Circu- 

 cular D. Fischerei-Verein, 1873, VII., 266. 



TRANSPORTING LIVING TROUT. 



An article in one of the circulars of the German Fishery 

 Association, in reference to the transportation of living trout, 

 recommends that, before the transfer is attempted, the fish 

 be kept for eight or ten days where they can not have access 

 to any food. The author remarks that when trout have been 

 recently captured the water in which they are placed very 

 soon becomes turbid, and unfit for their preservation, but that 

 after a few days this tendency disappears. It is also consid- 

 ered objectionable to transport male with female fishes near 



