84 V. S. BUEEAU OF FISHERIES. 



poultry netting, and through the cutting off of the intense light 

 to which the spring was subjected the growth of algss will be largely 

 prevented. In order to confine the water within the walls of the 

 spring, which has always been difficult owing to the gravelly nature 

 of the soil, a wooden bulkhead was set at a distance of 20 feet from 

 the wall on the lower side and the intervening space filled in with 

 red clay to a depth of 4 feet. 



HARRIS PONDS (GA.) SUBSTATION. 



Operations in this field extended from March 15 to the middle 

 of October and consisted in the propagation of bluegill sunfish 

 (bream) and catfish {Ameiiirus nehulosus), the young fish being 

 collected from the ponds in the Nos. 1 and 2 fingerling stages and 

 transferred to Bullochville to be distributed with the fish shipped 

 from that point. The outcome of the season's work was satisfactory, 

 the production of sunfish exceeding that of any previous year, while 

 sufficient numbers of catfish were distributed to fill all applications 

 for that species. Fully 150 terrapin were captured in the ponds 

 and destroyed during the season, and to this fact may be attributed 

 a large measure of the success attained. However, a more serious 

 menace to fish-cultural effort exists here in the form of numerous 

 beetles of destructive species, and no successful method of combat- 

 ing it has yet been devised. The eggs of these beetles are deposited 

 on the leaves of aquatic plants at or slightly above the surface of 

 the ponds, where they are practically inaccessible. The supply of 

 water from the springs is not sufficient to permit of changing levels 

 during the spawning season, and the roiling of the water incident 

 to wading into the ponds to cut the weeds would in all probability 

 result in considerable losses through the smothering of the eggs. 



At this field station the side ditches connected with the pond 

 system were deepened and widened to exclude freshet waters and 

 the shallow portions of several of the ponds were made deeper, the 

 excavated material being utilized in the improvement of the division 

 banks. 



EDEXTON (X. C.) STATION". 

 • [W. S. Vincent, Superintendent.] 



In addition to the work concerned with the propagation of the 

 anadromous fishes, mention of which may be found on page 54, the 

 Edenton station produced the various pond fishes on a limited scale. 

 Its output of such species during the year amounted to 62,920, of 

 which the great majority were largemouth black bass fry and finger- 

 lings. The remainder consisted of sunfish, catfish, and crappie, 

 only negligible numbers of the two last named being produced. 



LOUISVILLE (KY.) STATION AND SUBSTATION. 

 [Charles W. Burnham, Superintendent.] 



Though pond fish-cultural activities at this station were concerned 

 with four species of fish, the principal work, as in the past, consisted 

 in the production of smallmouth black bass. Approximately 93 per 



