FISH-CULTURAL INVESTIGATIONS IN MONTANA AND WYOMING. 
53 
RESULTS OF STOCKING THE WATERS OF YELLOWSTONE NATIONAL 
PARK WITH FISH. 
In 1889 and 1890 yearling fisli were placed by the U. S. Fish Commission in the 
waters of the Yellowstone National Park, as follows: 
Date. 
Place. 
Kind of fisli. 
Number. 
Sept. 22, 1889 
Sept. 15, 1890 
Sept. 22, 1889 
4, 975 
7, 875 
990 
995 
3, 350 
3, 350 
968 
18, 000 
7, 262 
7, 263 
4,750 
4, 750 
9. 300 
2, 000 
980 
5, 000 
5, 000 
Sept. 2,1890 
Do 
Sept. 22, 1889 
Aug. 9, 1890 
Aug. 23, 1890 
Do 
do 
do 
Sept. 2,1890 
Do 
Sept. 15, 1890 
Oct. 3, 1889 
Oct. 15,1889 
Aug. 15, 1890 
Sept. 11, 1890 
Excepting the Yellowstone and Gibbon rivers, and possibly the East Fork of the 
Gardiner, there were no fish whatever in any of these streams or lakes, the falls that 
are found in each having apparently proved effective barriers in preventing fishes 
from ever reaching the waters above. The only species known from the Upper Gib- 
bon Eiver is the little blob or miller’s thumb, while the native mountain trout was 
well known to be abundant in the Yellowstone Eiver, above the falls as well as below. 
Each of these bodies of water is practically so isolated from the others that fish can 
not pass from one to another. The Commissioner, therefore, planted a different species 
in each basin, except in Lewis and Shoshone lakes, where two species were placed. 
This will greatly simplify any observations that it may be desired to make upon them 
at any time. 
One of the principal purposes of our visit to the Park was, as directed by the 
Commissioner, “ to make such examinations as are possible with a view to determining 
what success has attended the plantings of fish already made in that reservation.” I 
visited the different places where the plants were made, and am able to report that, 
as a whole, the work of the Commission in that region has proved very successful. 
At least five of the seven species planted are doing well, and we have no reason to 
think that a sixth species (lake trout) is not also doing equally well. We obtained 
specimens of brook, Loch Leven, rainbow, and black-spotted native trout, and learned 
that the Von Behr trout, which was put in Nez Perce Creek, have been seen at different 
times this year by several persons. 
At least the brook and Loch Leven trout, which were planted in 1889, spawned in 
1890, as we found young of these species that could not be over a year old. All of 
the specimen s we took were in excellent condition, thus showing that the waters are 
suitable and the food supply abundant. 
It is doubtful if any of the wliitefish that were transplanted from Horsetliief 
Springs to Twin Lakes and Yellowstone Eiver have survived. Each of these places 
was examined, and we made careful inquiry of persons who had opportunities for 
