1178 tr. S. BUREAU OF FISHERIES 



where necessary for proper drainage. Though interfered with to some extent 

 l.y unfavorable weather, the general results of the year's fish-cultural efforts 

 are regarded as satisfactory. Sudden temperature changes during tlie spawn- 

 ing season cut down the production of largemouth bass as compared with last 

 year's figures. The 1930 output amounted to 323,455 fish of which approxi- 

 mately 200.000 were in the fiugerling stage. The remainder were fry. Besides 

 the bass work the distributions included 89,890 bluegill bream, 5,225 crappie, 

 4,860 warmoutli bass, and 00.") spotted catfish. In conjunction with the South 

 (Carolina Board of Fisheries two experimental shad hatcheries were con- 

 structed and operated in Marcli ami April, one of them being located on the 

 Black River near Georgetown, S. C, and the other one 2 miles below Jackson- 

 boro, S. C, on the Edisto River. At the former location 42,000 eggs were 

 collected, while the collections on the Edisto numbered 560,000. 



SAN MARCOS (TEX.) STATION AND SUBSTATIONS 



[O. N. Baldwin, Superintoiidciit] 



Construction operations during the year were confined to repair of present 

 station buildings. The outbuilding attached to the superintendent's residence 

 was repaired and painted, and repairs were made to the station office. The 

 sui^erintendent's residence, office building, and cottages were piped for gas. 

 The main sewer line in the well-basin trench, which had become stopped 

 with roots, was opened and relaid. The flag mound was removed and a pond 

 constructed on tlie site. The excavated earth was used for leveling the 

 grounds and for the construction of a levee. The year's distributions of fish 

 from San Marcos station included 213,417 fingerling black bass and 82,111 fish 

 of other species, among which were 5,860 Rio Grande perch. Black bass 

 were supplied to 154 applicants — an average of 1,386 being delivered to each. 

 In making the distributions the station messengers traveled 24,411 miles, made 

 59 trips, and carried 8 species of fish. 



Lake Worth (Tex.) substation. — In addition to fish-cultural work, the activi- 

 ties at this point were confined to care of ponds and grounds. The total 

 output of fish amounted to 299,420, including 7,925 fingerling black bass and 

 96,200 crappie. The latter were rescued from flood waters of the Trinity 

 River and placed in permanent waters within a reasonable distance from 

 the station. 



Neto Braunfcls (Tex.) suhstation. — The total output of fish amounted to 

 88.041. Of these 10,361 were black bass and the remainder were bream and 

 warmouth bass. 



Medina Lake (Tex.) substation. — Fish to the number of 11,507 were dis- 

 tributed from this auxiliary. This number included 7,347 black bass, 3,070 

 sunfish, and 1,120 rainbow trout. The substation was closed late in September. 



TUPELO (MISS.) STATION AND SUBSTATION 

 [Charles R. Wiant, Superintendpnt] 



The year's fish-cultural activities were marked by an appreciable increase 

 in the production of bream and a falling off in the output of bass. The 

 total distribution of the two species of bream handled at the station, amounted 

 to 398,385 fingerlings and yearlings, while the production of fry and fingerling 

 bass aggregated 402,450. In a water temperature of 60° F. the adult bass 

 began nesting on February 27, fully a month earlier than in any previous 

 year. On March 3 the station was visited by a cold wave, which quickly 

 lowered the temperature of the water to 39° F. and caused all brood bass 

 to abandon their nests. The loss of eggs in this instance was total. The 

 occurrence of a second cold spell on March 26 reduced pond temperatures from 

 67° to 44° F. This resulted in some loss of eggs and partially arrested the 

 development of the fish, as all schools thereafter collected were small and 

 manv of them contained two or three sizes of advanced fry. At the close 

 of the fall distribution in 1929 a lot of 41,000 bream was carried over the 

 winter and shipped during the spring in connection with the bass distributions. 

 The object of this was to avoid a duplication of transportation expenses, as both 

 the bream and part of the bass were destined to the same section of the country. 



