386 U. S. BUREAU OF FISHERIES 



iustalled in the superintendent's residence, and minor repairs were made. 

 Tlie output of black bass exceeded the highest previous record by over 100.000. 

 The year's distribution amounted to over 1,000,000, Tupelo being the first of the 

 bureau's pond stations to attain this figure. Observations of the bass indicate 

 that the age and vigor of the brood fish rather than the number available is 

 the most iutiuential factor in determining the output. It appears, however, that 

 50 bass to the acre is productive of the best results. Twenty thousand bass fry 

 are being retained for fall distribution. 



A number of reports were received indicating that plants of fry in new ponds 

 gave very satisfactory results. Two species of sunfish were propagated in two 

 special ponds and in the bass ponds, and 57.000 more than were needed to fill 

 applications were obtained. A few warmouth bass and catfish also were 

 handled. During the year, 728 separate applications were filled and a surplus 

 of catfish was distributed. 



A new substation at a leased pond near Aliceville, Ala., was established 

 in the course of the year for the production of bass and sunfish. and a man was 

 detailed there during the latter part of the year. The fish-rescue station at 

 Friars Point. Miss., was in oi:>eration from July to October, and a somewhat 

 larger number of fish than usual was handled, due to the terrific spring 

 floods. 



Lakeland (Md.) Ponds 



[Under direction of Washington office] 



The operation of these leased ponds was more successful than for several 

 y^ars past. All fish were distributed as fingerlings, and over 75,000 good-sized 

 fish were secured from the five iwnds comprising the tract. Approximately 

 30,000 of these were largemouth bass, and the rest were sunfish and crappie. 

 The ponds were heavily stocked with golden shiners and goldfish as forage fish, 

 and this abundant food supply brought about splendid growi:h as forage fish, 

 At the conclusion of the distribution in late October, the ponds were left bare 

 for the winter and the brood stock was increased to 525 bass, about 70 

 crappie, and 50 bluegill sunfish from the Mississippi River. These wintered 

 well and were distributed in the various ponds in the spring. For some 

 unknown reason spring spawning appeared to be limited, and the stock of 

 fingerlings in the ponds at the close of the year was considerably smaller than 

 in the summer of 1927. 



CENTRAL STATION AND AQUARIUM, WASHINGTON, D. C. 



[L. G. Harrox. in charge] 



For the benefit of the visiting public, efforts were made during the season 

 to keep on hand a supply of the various species of fish eggs propagated by the 

 bureau. These were from chinook salmon, rainbow trout, and cisco. A total 

 of 1.396,275 of these eggs was received, and 1.320,000 fry obtained from them 

 were distributed. Tlie following fishes, produced at Lakeland, Md., and other 

 stations or collected from the Potomac River, were received and distributed : 

 29,885 largemouth black bass. No. 3 fingerlings ; 22.975 crappie, Nos. 2 and 3 

 fingerlings ; 36.025 sunfish, No. 2 fingerlings ; 16 adult smallmouth bass ; 1,500 

 catfish, fingerlings No. 2 ; 265 yellow-perch yearlings : and 800 yearling roach. 

 One thousand nine hundred and fifty-two fish of 35 species were exhibited in 

 the aquarium during the year. 



Part 2.— DISTRIBUTION OF FISH AND FISH EGGS 



[E. C. Fearnow, Superintendent of Fisli Distribution] 



The output of the bureau's stations — 7,036,317,200 fish and fish 

 eggs — exceeded that of last year by over half a billion. Increased 

 outputs were had of some of the most valuable species, such as the 

 shad and cod. Over 71,000 more fingerlings were produced in 1928 

 than in 1927, also. The increa.sed output of fingerlings represents 

 15,000 cans of fish, or approximately 30 carloads. To transport the 

 entire output for the year would require nearly 125,000 regulation 



