REPORT OF COMMISSIONER OF FISH AND FISHERIES. D9 
eggs, aggregating 88,074, arrived from Neosho and Manchester in 
good condition and produced 69,000 fry, of which 61,000 were planted 
as fry early in the spring and 8,000 as fingerlings in June. 
There were on hand at the beginning of the year 8,000 yearling Loch 
Leven trout—400 of the hatch of 1897-98 and about 50 ranging from 
6 to 10 years in age. The old fish were not used, as it was found 
that their eggs were worthless, but 103,800 eggs were obtained from the 
younger fish between November 1 and December 27. These were 
handled in the Clark box, spring water being used for the first month, 
when creek water was substituted. This being much colder than the 
spring water, retarded the hatching so that they did not commence to 
come out until about the middle of February. In distributing the eggs, 
1,000 were shipped in the green state and 20,000 after the eye-spots 
appeared; from the remainder, 50,000 fry were hatched and planted in 
Michigan waters during the spring. : 
An unsuccessful attempt was made to collect sturgeon eggs on the 
Grand, Muskegon, and Kalamazoo rivers in western Michigan, and 
also on the Detroit River near Wyandotte. Mr. Thayer, who had been 
detailed for this work, conducted fishing operations persistently for 
several weeks, but succeeded in capturing only three sturgeon. 
The following table shows the number of fish on hand at Northville 
at the close of the fiscal year: 








Calendar year in which fish were hatched. 
Species. a Pe d PS Tae 1894 or 
1901. 1900. | 1899. | 1898. | 1897. Gather. 
SUG Gs Ret a el ee ee eres eee eee Se EERE EEE | eee sees | 1, 245 169p|- si seee 
STD AD RUST Tay ON RSS. Se SS Se Ee ee 5,080 || == ee== [ee LO) 231 15 
Eta? Wy ef Se BES SE ee eee ee eae eee yd eB | He ile DUE At Ss ese She ste 
Brook trout.-.---=... pashan, (ciety ake Cem ican’ eae SUOOOR WN, Ldaenle 22a Bee mere es. AS | pee eee 
CMR mere tn FADS ronda hee oe a 9,500 | 7,115 51 | 1,353| 400 15 
| | 





The Detroit hatchery, under the immediate charge of Mr. Thayer, 
was prepared for white-fish work early in the fall, andon November 17 
the first eggs were received from the three fisheries on the Detroit 
River. These were operated in connection with the Wolverine Fish 
Company of Detroit, on the same conditions as in the previous year. 
At Belle Isle fishing operations extending from November 5 to 
December 9 secured 6,308 male and 5,865 female white-fish, besides 
574 undersized ones, which were returned to the river. Those captured 
at the upper seine were transferred to the lower grounds, where they 
were held in pens and erates. At Grassy Island 7,254 mature fish 
were taken, 4,272 males and 2,982 females, 2,609 of which yielded eggs. 
From the Belle Isle fish 139,280,000 eggs were obtained, and from 
those at Grassy Island 64,280,000, giving a total of 203,560,000. The 
average yield of eggs per female was 25,679. Two shipments, aggre- 
gating 31,000,000, were transferred to the Alpena hatchery, 20,000,000 
were sent to Sault Ste. Marie, and 52,000,000 were shipped to other 
