PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 1987 465 
varieties are retained and fed at the hatcheries for periods ranging 
from several months to a year or more. Furthermore, the distribution 
of these larger fish involves heavy costs and this feature makes it neces- 
sary to restrict the hatchery production to a level which will permit the 
proper handling of the fish in distribution under the funds available 
for this purpose. 
Hatchery production can be increased to a limited degree by more 
efficient methods and more intensive utilization of existing facilities. 
Any marked increase in production must be based upon an expansion 
of hatchery facilities, either through the establishment of new hatch- 
eries or enlargement of the capacity of the older establishments. 
Hatchery production is also somewhat at the mercy of weather con- 
ditions and other factors, which accounts for a year-to-year variation. 
The Louisville, Ky., hatchery was completely inundated during the 
winter floods in that section, but the damage was overcome and a 
moderate production of fish was achieved during the spring. This 
accounted for a curtailment in the production of smallmouth bass, but 
the yield of largemouth bass was brought to 7,200,000, a figure ex- 
ceeding any previous output by the Bureau. 
CONSTRUCTION ACTIVITIES 
No new work was undertaken during the year, except that at the 
close of the fiscal year a new project at Carson, Wash., in the Columbia 
National Forest was just being started. This was provided for by a 
special appropriation of $60,000 and was necessitated by the fact that 
the pool created by the Bonneville Dam will seriously affect opera- 
tions at the Little White Salmon, Wash., substation. The new 
project was designed to offset the reduction of putput which was 
anticipated at the Little White Salmon unit. 
During the year a W. P. A. development at the Uvalde, Tex., station 
was carried on and was virtually completed on June 30. The Smoke- 
mont, N. C., hatchery, located in the Smoky Mountain National 
Park, was likewise completed under W. P. A. auspices. 
Somewhat extensive work in the nature of enlargement and im- 
provement was carried on by the W. P. A. at several other locations. 
The San Angelo, Tex., station, partially developed, was improved so 
that it is now a complete producing unit. Throughout the year a 
small force was at work enlarging the pond system of the Rochester, 
Ind., hatchery. At Lake Mills, Wis., general improvements were 
being made while the pond system was also extended. The Bureau’s 
program for the construction of culture ponds in the Upper Mississippi 
Wild Life Refuge was furthered by a project under way at Genoa, 
Wis., where a large acreage is being developed. Lesser improvements 
were made at the Spearfish, S. Dak., station and several other estab- 
lishments. 
C. C. C. assistance was obtained in a number of instances, the most 
outstanding of which was the continuation of the long-range develop- 
ment plan at the York Pond, N. H., station. At Lamar, Pa., a small 
detail of these workers was engaged in general improvements. At 
Walhalla, S. C., the hatchery building and rearing ponds were com- 
pleted, but the installation of equipment for the former was not 
accomplished. It was not possible to construct any dwellings at this 
point. 
