34 U. S. BUREAU OF FISHERIES. 
The effect of this is that so many nets are operated by the fisher- 
men that they are not able to lift them at proper intervals, and the 
fish taken are either dead or the quality of their eggs impaired. 
During the spawning season in the fiscal year 1921 there was a 
good catch of fish and weather conditions were generally favorable, 
but for the reasons stated the egg collections were unsatisfactory, 
both as to quantity and quality. This applies to both the lake trout 
and the whitefish. The egg collections amounted to 30,876,000 of 
the lake trout and 12,080,000 of the whitefish, and all of them were 
incubated at the Charlevoix hatchery. The loss on the former 
amounted to 59 per cent and on the latter to 51 per cent. The 
output of the station was augmented by the transfer of 59,120,000 
whitefish eggs from the Put in Bay station and 25,000 steelhead eggs 
from the Birdsview (Wash.) field, the fry from both lots entering 
into the general distribution. 
The pike-perch work on Saginaw Bay was fairly successful, but it 
does not represent by any means the potential value of this region 
as an egg-collecting field. The spawning season extended from 
March 26 to April 16, during which period 284,290,000 eggs were 
taken. Of this number 54,050,000 were deposited on the spawning 
grounds after being fertilized. and 223,200,000 were sent to the De- 
troit hatchery of the Michigan Fish Commission for incubation. 
The importance of the work in this field has been mentioned on sev- 
eral occasions and funds should be forthcoming to place hatchery 
facilities in this field for the full development of the work. 
From the Northville station there were distributed 475,000 brook- 
trout fry and fingerlings, resulting from eggs purchased of commer- 
cial fish-culturists, and 90,500 rainbow trout were produced from 
eggs transferred from the West Virginia and Missouri stations of the 
bureau. Approximately 31,200 smallmouth black bass reared from 
the Northville station brood stock were also distributed, and at the 
close of the year there remained in the station ponds about 75,000 
bass and 2,000 rainbow-trout fry. 
PUT IN BAY (OHIO) STATION. 
[S. W. DownIinG, Superintendent. ] 
Owing to quite generally favorable weather conditions in Lake 
Erie and to the close cooperation of the commercial fishermen, the 
whitefish work of the Put in Bay station resulted very satisfactorily, 
though the spawning season was unusually late. Between November 
20 and December 12 eggs to the number of 876,500,000 were collected 
from fishermen operating in the various fields and placed in the Put 
in Bay hatchery. Of these, 141,060,000 were secured in the vicinity 
of Port Clinton, Ohio; 93,840,000 at Isle St. George; and smaller 
numbers from the fisheries around Toledo, Middle Bass Island, and 
Catawba Island. In the former prolific whitefish field near Monroe 
Piers, Mich., no eggs whatever were obtained, as fishing operations 
were brought to a close very early in the spawning season by a heavy 
and protracted wind and rain storm which came on just as prepara- 
tions had been completed for the penning of the partially ripe fish. 
Shipments of green and eyed eges aggregating 139,870,000 were for- 
warded to various State and Federal hatcheries and 7,000,000 fer- 
