428 U. S. BUREAU OF FISHERIES 



COLD SPRINGS (GA.) STATION AND SUBSTATION 



[Chas. a. Bullock, Superintendent] 



The work at this station was handicapped owing to the impossi- 

 biHtv of securing an adequate stock of brood fish of the large-mouth 

 bhxck bass. The transfer of adult fish to this station from more 

 northerly sections has not met with good results, and they appear to 

 be very scarce in local waters. Another unfavorable factor was the 

 unseasonably late spring and consecpient low water temperatures. 

 The first bass nests were observed on March 23, whereas in previous 

 years spawning has commenced as early as March 8. It would appear 

 that the late spring was conducive to the growth of such natural food 

 as animal plankton, mostl}^ daphnids, as these were produced in larger 

 numbers than heretofore. Carnivorous insects and beetles were very 

 scarce. 



Past experience seems to demonstrate that crappie can not be suc- 

 cessfully handled in the ponds at this station. The results obtained 

 after a number of years' work along this line have been almost neg- 

 ative. A noteworthy fact in connection with these efforts is that the 

 brood fish are always more or less emaciated when removed from the 

 ponds in the fall. 



Harris Ponds (Ga.) suhstation. — The output of sunfish from this 

 field station has continued to increase from year to year. During the 

 past season it reached a total of 95,600 fingerlings. Sixty adult catfish 

 placed in three of the ponds produced onl}' 5,300 fingerlings. This 

 indicates a considerable falling ofi' in output as compared with the aver- 

 age, and it can only be accounted for by the unusual water conditions. 



EDENTON (N. C.) STATION 

 [Wm. S. Vincent, Superintendent] 



For certain reasons not satisfactorily explained the propagation of 

 the so-called pondfishes has never been attended with any high degree 

 of success at the Edenton station. Fish-cultural work along this line 

 during the fiscal year 1924 involved the large-mouth black bass, the 

 bluegill sunfish (bream), the crappie, and the catfish. The work was 

 moderately successful as compared with the results of past years. 

 Some improvements were undertaken during the year with the view 

 of increasing the extent of the work in this line of endeavor, among 

 them being an increase in the water area of certain ponds, eradica- 

 tion of undesirable vegetation, and the introduction of new brood 

 stock. 



LOUISVILLE (KY.) STATION 

 [C. W. BURNHAM, Superintendent] 



Owing to the impossibility of securing an adequate stock of brood 

 large-mouth black bass the output of this station was curtailed as 

 compared with the average of recent years. For the work of this 

 station brood bass are obtained in the spring months, much better 

 results being thus attained than by collecting the fish in the fall. 

 Probably the explanation is that the fish are apt to be more evenly 

 mated in the spring. 



Five hundred adult small-mouth bass were distributed in four 

 breeding ponds, each of which is three-quarters of an acre in area, 

 and 522,000 fry and 8,2S5 fingerlings were produced. For the past 

 two years it has been the practice at this station to handle the fry 



