■ asKSSBsKSK'?'-— ass*-. 



Figure 5.3. Hy- 

 brid sunfish are pro- 

 duced in the labora- 

 tory. 



A. Ripe eggs from 

 a female of one 

 species are gently 

 squeezed into a petri 

 dish. 



B. Immediately 

 milt from a ripe 

 male of another spe- 

 cies is sprayed over 

 the eggs. Eggs and 

 milt are gently mixed 

 and then left for two 

 minutes. 



C. Fertilized eggs 

 are then placed in 

 other petri dishes — 

 a few hundred in 

 each — and washed 

 with aged tap wa- 

 ter. When eggs are 

 washed, they adhere 

 to the bottom of the 

 dish. [From Child- 

 ers, W. F., and Ben- 

 nett, G. W., 7^/. Nat. 

 Hist. Surv. Biol. 

 Notes, 46 (1961)] 



100 



