( 67 ) 



CHAPTBE X. 



COLLECTING THE OVA. 



The ova of salmon, trout, and of many other 

 fish, when deposited in the natural gravel 

 heds, in nests made by the fish, which 

 are called redds, can be collected and carried 

 to a distance, to be used in stocking other 

 waters. This is the plan adopted at Hunin- 

 gue, the great French fish-rearing establish- 

 ment, which has now, however, changed 

 owners, having been included in the territory 

 ceded to Germany after the last war. 



The ova, when received at Huningue, are 

 placed in artificial hatching-beds, until the 

 process of incubation has advanced to a certain 

 stage, which is found by practical experience 

 to be the safest time to subject the eggs to 

 the rather rough usage to which they are 

 sometimes liable, in being forwarded long 

 distances. When the hatching has pro- 



