PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 1921. 85 
tilized eggs were deposited on the reefs where taken. The remaining 
stock produced 167,500,000 fry, which were liberated on the spawning 
grounds in the lake, care being taken to scatter them over as wide an 
area as possible. The incubation period was shortened by the un- 
usually mild winter, averaging only 119 days, in a mean temperature 
of 383° F, 
The high-water temperatures prevailing during most of the winter 
brought on arun of pike perch in March, and some of the commer- 
cial fishermen reaped very good returns during the latter part of 
that month. No spawning fish were in evidence in March, however, 
and the run throughout the entire season was characterized by the 
very small number of spawners included in it. Egg-collecting oper- 
ations extended from April 5 to April 24, but the number of eggs 
taken was proportionately small. Despite the fact that the fisher- 
men were willing and anxious to act on any suggestion with a view 
to obtaining good eggs, the quality of the eggs was uniformly poor, 
being about the poorest, in fact, ever noted in eggs handled at the 
station. The total of 111,600,000 laid down in the hatchery yielded 
only 12,600,000 fry. These were strong and active, however, and 
the entire output was liberated in good condition on the spawning 
grounds in the lake. 
Soon after the middle of May the carp propagation work, inaugu- 
rated two seasons ago in connection with the Port Clinton fisheries, 
was taken up, a small hatching battery for the purpose being set up 
in one of the fish houses at that point. During the egg-collecting 
period, extending from May 23 to June 11, spawn takers made daily 
visits to the fishing grounds to take eggs from the ripe fish landed 
in the seines, liberating at the same time the fry hatched from earlier 
lots. The catch of carp was below that of a normal season, but the 
egg collections were considerably larger than in either of the two 
previous seasons, the total amounting to 74,325,000. From this stock 
63,325,000 fry were hatched and planted on the spawning grounds 
in the Portage River, between Port Clinton and Oak Harbor. 
During the fall, arrangements were made with local fishermen on 
Lake Erie to save all smallmouth black bass taken in their seines 
and hold them in live boxes until a sufficient number could be secured 
to warrant a shipment. By this means 805 adult fish of that species 
were collected during October and forwarded to various pond fish- 
cultural stations of the bureau to serve as a brood stock. 
CAPE VINCENT (N. Y.) STATION. 
[J. P. Snypgwr, Superintendent. | 
During the first half of November lake-trout eggs to the number 
of 549,000 were taken at points on Stony Island, N. Y., and Pigeon 
Island, on the Canadian side of Lake Ontario. As is usual at that 
time of the year, stormy weather was encountered and all of the 
eggs were obtained during but four days of weather suitable for 
fishing. Thirty-nine thousand eggs were shipped to applicants, and 
of the 450,000 fry hatched from the remainder 80,000 were furnished 
for stocking interior waters in the State of New York and 370,000 
were returned to Lake Ontario waters. Collections of whitefish 
eggs from Lake Ontario amounted to 150,200,000, 
