16 U. S. BUEEAU OF FISHERIES. 



Stations and substations operated and output of each, fiscal year 1922 — Con. 



EGG-COLLECTING OR AUXILIARY STATIONS. 



In addition to the stations and substations listed in the foregoing 

 table there are operated each year a varying number of field or 

 auxiliary stations from which egg collections are made. These are 

 temporary stations occupied only during the spawning season, or 

 mere camps that are shifted from time to time as the exigencies of 

 the work may make advisable. The eggs obtained at these field sta- 

 tions are either transferred to the main hatcheries for incubation 

 immediately in the green stage, or, where the distance involved is too 

 great to permit of making the transfer of green eggs, they are re- 

 tained at the collecting station until reaching the eyed stage before 

 transfer takes place. At points on the Great Lakes and off the New 

 England coast egg collections are made by the bureau's boats in 

 favorable localities. The following stations were operative for egg 

 collections during 1922. The period of occupation and the species of 

 fish eggs produced are noted in each case. 



