73 



REPORT OF COMMISSIONER OF FISH AND FISHERIES, 



[6] 



uo instance was more thau 50 per cent., and in some cases only 5 per 

 cent., the average being about 30 per cent. A number of experiments 

 were made in currying - forward eggs of the same taking by two systems, 

 and the results in every iustance were greatly in favor of the gravel 

 treatment. Arrangements for handling a good portion of this fall's 

 crop of brook -trout eggs on gravel will be provided, and further com- 

 parative experiments of the two systems made. 



A case of 20,000 rainbow-trout eggs arrived March 19 from Baird 

 station, Cal., in a very poor condition. They had evidently been 

 exposed to a high temperature in transit, as the ice was all gone and 

 the eggs mostly hatched. About 2,500 eggs were picked out and 

 placed in hatching boxes, where they soon hatched. The fry seemed 

 feeble, and a huge percentage of them died within a few weeks. 



Shipments of rainbow-trout eggs were made as follows: March 21, 

 25,000 to the Michigan Fish Commission, Paris, Mich. ; and April 0, 

 25,000 to Eugene G. Blackford, Xew York city, for shipment to France. 



The spawning record for the rainbow trout during the season is as 

 follows: 



Date. 



1887, 



January 6 



January 7 — 

 January 9 ... 

 January 12. ... 

 January 13. . . . 

 January IV... 

 January 16. ... 

 January 17. ... 



January 19 



January 21 . .. . 



January 22 



January 23 



January 24. 

 January 25. . . . 

 January 28. . .. 

 January 29 ... 

 January 30. . .. 

 February 1... 

 February 3... 

 February 4... 

 February ">... 

 February 6... 

 February 7... 

 February 9... 

 February 11... 

 February 12 .. 

 February 13. . . 

 February 14. . . 

 FV.bruai \ Lo 

 February 16... 

 February 17 . . . 

 February 18... 

 February 111 . . 

 February 20. .. 

 February 21... 

 February '_"2. .. 

 February 23... 

 February 24. . . 

 February 26. . . 

 February 27. . . 

 February 28 . . 



March 1 



March 2 



March 3 



March 4 



Females. 



Eggs. 



2,400 

 600 

 600 

 1,000 

 1, 000 

 1, 200 

 1,500 



1, 200 



2, 400 



1, 300 



2, 300 



2, 700 

 600 

 400 



1, 600 

 400 



1,800 

 1,200 



3, 600 

 550 

 700 

 000 

 600 

 600 

 150 

 900 



2, .sou 



■ 6, 800 



5, sun 



2, 400 



3, 000 

 700 

 500 



2, ooo 



2, 900 



3. 000 

 i,. 900 

 1,600 



900. 



60 ■ 

 1,800 

 3.000 

 3,300 

 3,900 



Date. 



1887 



March 5 



March 6 



March 7 



March 8 



March 9 



.March 10 



March 11 



March 12 



March 13 



March 14 



March 15 



March 16 



March 17 



March 18 



March 19 



March 20 



March 21 



March 22 



March 24 



March 25 



March 26 



MarS 27 



March 28 



March 29 



March 30 



March 31 



April 1 



April 2 



April 3 



April 4 



April 5 



April 7 



April 8 



April 9 



April 10 



April 11 



April 12 



April 13 



April 14 



April 15 



April 21 



April 22 



A pril 25 



Total... 



Females. 



375 



Eggs. 



1,800 



2, 500 

 4,800 

 5, 250 

 3,000 



3, 900 

 4,300 

 7,000 

 5, 100 



1, 200 

 2, 100 

 3,000 

 1,050 



450 



1,900 



10, 900 



6,700 



2, 950 

 1,300 



700 

 2,500 

 1,000 



2, 500 

 750 

 550 



3,950 

 5, 400 



3, 400 

 3,600 

 2,400 

 1,700 



700 

 1,800 



600 

 1,000 

 1,400 



300 

 1,200 



1, 000 



2, 200 

 i, 50o 



200 

 150 



196, 350 



