PROPAGATION AJSTD DISTRIBUTION OF FOOD FISHES, 1921. 81 



The work began at Prescott, Wis., on August 12 and was brought 

 to a close at Bellevue, Iowa, on November 10, these dates indicating 

 an unusually short season on account of the natural conditions men- 

 tioned. The work was conducted in the following fields : 



One crew, with house boat, from Prescott, Wis., to Red Wing, Minn. ; thence 

 to Genoa, Wis. 



Two crews on house boats from Wabash to Winona, IMinn. ; thence to Dakota 

 and Drfssl)ack, Minn. 



Two crews from Homer, Minn. 



One crew from La Crosse, Wis. 



One crew from Genoa, Wis. 



One crew from Ferryville, Wis. 



Two crews from Lynxville, Wis. 



One crew from Marquette, lowfu 



One crew with honse boat from Dubnque to Bellevue, Iowa. 



One crew from IJellevue, Iowa. 



In addition to the regular rescue work collections of eggs from 

 carp and buffalofish taken by commeirial fishermen were made at 

 Bellevue and Lynxville. The eggs were taken, fertilized, and planted 

 on the natural spawning grounds. Such work was done from May 9 

 to 25 and resulted in the fertilization of 68,287,000 buffalofish and 

 42,718,000 carp eggs. Had these eggs not been thus handled they 

 would haA'e been sent to the mai'kets in the fish and lost. While the 

 l)lanting of fertilized eggs is not considered as efficient as incubating 

 them in a well-equipped hatchery, it is believed that under certain 

 conditions it is expedient and results in much good if properly done. 



In addition to the operations on the ujiper Mississippi rescue work 

 was conducted from the Fairport (Iowa) biological station; also on 

 the Illinois River at Meredosia and Cairo, 111., and at San Marcos, 

 Tex. The operations from Fairport and substations were in con- 

 junction with the propagation of the fresh-water mussel, large num- 

 bers of the rescued fish being inocidated with the mussel glochidia 

 before l)eing liberated. Owing to unfavoi-able water stages the active 

 season at Cairo was veiy short, extending only from October 1 to 10. 

 In this field one seining crew workiu"; under the direction of the 

 superintendent of the Louisville (Ky.) station salvaged a total of 

 1,057.215 fish of miscellaneous species at a total cost of $582.07, or 

 at the rate of 55 cents per thousand fish handled. In the vicinity of 

 the San Marcos (Tex.) station 202,886 black bass, catfish, and .suiifish 

 were removed from the bed of a stream, which almost entirely 

 evaporated during a protracted hot spell, and were deposited in 

 living waters. Reference to the table on i)age 7 will show the ])oints 

 from which rescue work was prosecuted during the season, the num- 

 ber of fishes salvaged at each and restored to the original waters, 

 and the number delivered to applicants. 



Part 2.— DISTRIBUTION OF FISH AND FISH EGGS. 



Extent and Character of the Work. 



[E. C. Feaenow, Superintendent of Fish Distribution.! 

 BRIEF REVIEW OF THE WORK. 



The 4,062,480.405 fish and fish eggs (see table, p. 5) representing 

 the net product of the hatcheries and rescue stations of the buieau for 



