REPORT OF COMMISSIONER OF FISH AND FISHERIES. 59 
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—500 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 105,800 eges 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 untilabout 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 sueceeded in capturing only three sturgeon. 
The following table shows the number of fish on hand at Northville 
at the close of the fiseal year: 
Calendar year in which fish were hatched. 
| 
Species. | * | | | | 1894 or 
| QC , .O7 St 
| 1901. | 1900. | 1899. | 1898. | 1897. |oon ion. 
| 
Steelieadces= ee seneass Seite Sesto es aoiscme nae | he =n ever telat olen ater | 1, 243 169 
ochwlueven trout: se. ces een eee Ae | eal Ub beater oo ate | 110 231 15 
Gmail oeeenei te ee aerate tease eeeas sshate eal baosessca| cence. Lvl | eee ae tea ee ee Nene ee 
Brook trout-.-255-2-- ON ee ee ee eee 2 CEA 9,500 | 1,532 |_....--- [OMe =o!) So 55 ee eee 
Rate ee er Re SE an tee (9. BOD | 7,115|- 51/ 1,353| 400 15 
| 
! | 
* od ar ee = 
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 crates. 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 159,280,000 eggs were obtained, and from 
those at Grassy Island 64,280,000, giving a total of 205,560,000. 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 
