678 U. S. BUREAU OF FISHERIES 



encouraged as much as possible, and the fish are introduced into the 

 ponds to forage for themselves. All of these stations were at least 

 slightly affected by adverse weather conditions through the spawning 

 season and by diminished flow of water supplies due to drought. 



COLD SPRING (GA.) STATION AND SUBSTATIONS 

 [Charles A. Bullock and John Blosz, Superintendents] 



Construction operations during the year were confined to the repair of existing 

 buildings. The pond system was improved considerably by filling in the deeper 

 portions of several ponds and grading the bottoms of several others. During 

 the fall and winter the ponds were drawn down and treated with a heavy applica- 

 tion of lime. At intervals of two weeks beginning in April and continuing 

 throughout June the ponds were fertilized with a mixture of equal parts of acid 

 phosphate and pulverized sheep manure. A few brood bass purchased during 

 the winter were lost before the opening of the spawning season. Notwithstanding 

 the loss of this new stock the output of fish was greater than in any previous year 

 in the history of the station. The total number distributed amounted to 965,240. 

 Of this total 668,455 were largemouth black bass; the remainder were bream and 

 catfish. 



Harris Ponds (Ga.) substation. — In addition to fish-cultural work, activities 

 at this point consisted in the care of ponds and grounds, including minor repairs 

 to dams and outlets. The bream produced at this substation are transferred to 

 the main station for distribution. The year's output of fingerling bream in this 

 field amounted to approximately 75,000. 



Valdosta (Ga.) substation. — Development work at this substation was con- 

 tinued. A third drainage well, with a 16-inch casing, was drilled, and work on a 

 fourth well of the same diameter was started. A 35-foot by 40-foot holding shed 

 was constructed, and equipment consisting of eight 500-gallon capacity stock 

 tanks was installed. A 65-foot cypress flag pole was erected in front of the office 

 building. 



Grassy Lake, the basin of which comprises an area of approximately 300 acres, 

 refilled to only one-tenth of its original area. This condition was caused by 

 drought, the lake having no artificial water supply. As but little of the shallow 

 vegetation producing area of the lake was under water, the fish were thus confined 

 to the deeper runways where there was little or no aquatic growth. In the early 

 part of the winter the lake was drained and the fish distributed. With the 

 exception of a very small number all fish distributed were classified as adults. 

 The total production consisted of 5,730 largemouth black bass, 18,215 bream, 

 and 10,000 warmouth bass. In addition to the fish distributed approximately 

 4 tons of suckers and catfish were carried away to be used as food by local jsarties. 

 Ten alligators were killed during the year, besides hundreds of turtles and snakes. 



EDENTON (N. C.) STATION 



[William S. Vincent, Superintendent] 



Roach, gambusia, and fresh-water shrimp were collected from near-by waters 

 as a source of food supply for the young fish in the various ponds. Daphnia were 

 also collected for use while fry were still abundant. An appreciable number of 

 bass, sunfish, and crappie adults were secured from outside sources for the 

 improvement of the brood stock. The production of bass fry and fingerlings was 

 nearly equal to that of last year, though pond and weather conditions were far 

 less satisfactory. The auto trucks were again used to advantage, and at a 

 considerable saving in time and expense, in distributing fish to points not readily 

 reached by railroad. The production of sunfish was only about one-third of 

 normal. The cultivation of the ponds conducted during the past several years 

 seems to be producing the desired result of an Increased growth of aquatic 

 vegetation. 



LOUISVILLE (KY.) STATION 



[Uerman O. Hesen, Superintendent] 



During the year, water supply lines and drains were installed. The barn and 

 outbuildings were razed, the residence and hatchery buildings were painted, and 

 the appearance and condition of the station and its equipment were maintained 



