14 REPORTS OF THE DEPARTMENT OF COMMERCE, 
The possibilities of increased fish-cultural work on the Great 
Lakes, particularly on Lakes Erie and Ontario, as a result of more 
intimate cooperation between the United States and Canada have 
recently become more evident, and arrangements have been made by 
which all available sources of egg supply will be exploited. Espe- 
cially valuable during recent seasons has been the courteous action 
of the fishery officials of Canada in opening to spawn takers from 
the Cape Vincent station the whitefish spawning grounds in the Bay 
of Quinte, Lake Ontario. 
RESCUE OF STRANDED FISHES. 
The important work of rescuing food fishes from landlocked waters 
in districts of the Mississippi and Illinois Rivers assumed a wider 
scope and produced more noteworthy results than in previous years. 
All of the important old fields were occupied and some new territory 
was covered, the operations extending from Minnesota to Louisiana, 
both States inclusive. The principal centers of rescue work were 
Homer, Minn.; La Crosse, Wis.; Fairport, North McGregor, and 
Bellevue, Iowa; Meredosia, Ill.; Friar Point, Miss.; and Baton 
Rouge, La. 
With a view to an increased output and a reduced unit cost several 
valuable new features were introduced in 1918, including the station- 
ing in the immediate vicinity of the rescuing parties of houseboats to be 
used as living quarters for the fishing crews and improvements to 
the tank equipment for the holding and hardening of fish intended 
for transfer to distant points. 
The number of food fishes rescued in the fiscal year 1918 was 
25,970,041, as against 9,885,005 in 1917. The number of each of the 
important species was as follows: 
Blackbass| largemowtlin: Sevier smo bare se > see eee ee eS 365, 424 
Black, Dbasss7smallmouth e222 a Se a he ee 2, 433 
Wtea ons oe ee ee ee eee 2, 417, 052 
Carpe so. Seen Soe ee 1, 660, T76 
@aithishs,22ec. Bese sd Sb at eS eas 2 eee See ee 12, 718, 930 
Grapple b2ne) sus? he eee DERE oh ee Sn ees 2, 899, 462 
Drie oe we a enh EE aren: 88, 473 
ho tC aoe = ae Ee aC ee ee en ee eee Geers 2S) Sea et Bee 106, 408 
Pike ‘percha: soe fae a en hn Se ee ee es 1, 954 
River. dherring 2322235208 he Bee ee ee 3, T00, 000 
ECR ND SS as i ee la a 5, 940 
SS URID ETS Ee a ee ee ee 1, 393, 835 
Warmouth bass) 22. 2 See ee ee ee ee ee ee 7, 970 
Wihite (bass) 222222222524 Sopa ee See ee 47, 261 
Mellow. perch: ooo hee ease ee ee eee 458, 923 
Miscellaneous. 2225235 S52 2 oe Se re eee es 100, 200 
Mota | 22 ees SERS Ae eee Ae ee ere eee 25, 970, 041 
A very large percentage of the fishes rescued are returned to the 
adjacent open waters of the rivers and are not liable again to be 
stranded for another year; meanwhile they will have increased in 
size and economic value. Small numbers of these fishes of all species, 
but particularly black bass, crappie, sunfish, and catfish, are used by 
the Bureau in filling applications for stocking ponds, lakes, and 
streams in the adjoining or remote States. The fish thus delivered 
