DISTRIBUTION OF FISH AND FISH EGGS, 1910. 9 



The basses, sunfishes, and crappies (Centrarchid.e) — Continued. 



Small-mouth black-bass ( Micropterus dolomieu). 



Bluegill bream, bluegill sunfish (Lepomis pallidum). 



Other sunfishes (chiefly Eupomotis gibbosus 

 The perches (PercidjE): 



Yellow perch, ring perch (Perca JIavescens) . 

 The croakers (SciiENiDyE): 



Fresh-water drum, sheepshead, gaspergou (Aplodinotus grunniens) . Only lim- 

 ited numbers obtainable. Not distributed. 



Certain introduced species are propagated to a limited extent, as 

 follows : 



The minnows and carps (Cyprinid^e) : 



Goldfish (Carassius auratus). Propagated for ornamental purposes; not dis- 

 tributed. 



Ide (Leuciscus idus). Cultivated variety, golden ide. Propagated for ornamental 

 purposes; not distributed. 



OUTPUT. 



Although unfavorable climatic conditions, in 1910, prevented the 

 collection of as large numbers of eggs as usual, the superior quality 

 obtained from the most important species made possible a 4 per cent 

 increase over the previous record year of 1909. As appears in the 

 Report of the Commissioner of Fisheries for 1910, this year's output 

 of the stations was something over 473,000,000 eggs, 2,720,000,000 

 fry, and 36,000,000 fhigerlings, yearlings, and adults, or more than 

 3,230,000,000 fish and eggs in all. The yield of the various species 

 showed the usual fluctuations, there being notable increases in the 

 blueback, silver, and Atlantic salmons, lake trout, lake herring, 

 yellow perch, shad, cod, flatfish, and steelhead £rout, offset to some 

 extent by decreases in chinook salmon, whitefish, pike perch, and 

 less important fishes. 



The following table shows the work of the different stations in 1910, 

 the period of operation, and the eggs and fish delivered by each sta- 

 tion for distribution. It will be noted that transfers of eggs and 

 fish from station to station are frequent, serving economy and con- 

 venience in transportation where the shipment consists of eggs, and 

 giving advantageous distributing centers in the case of young fish. 

 Transfers are in all cases credited to the receiving station in the 

 column of totals, but for completeness of information are recorded 

 opposite both shipping and receiving station in the columns headed 

 "Transfers." The purpose of this table is to be distinguished from 

 that of the summary of distributions on page 25 of this report, 

 which is a statement of the number of eggs and fish actually delivered 

 at their destination, all losses in shipment being deducted. 



