APPLYING SURVIVAL CURVES 



41 



CO 



3 7 — 



o 

 o 



-/O 10 20 30 40 50 60 70 80 90 100110 120130140150160170 



DAYS 



520 TOTAL 

 ADULTS 



Fig. 1 Survival curves for augmented and naturally spawned popula- 

 tions of walleye in Oneida Lake, New York. Sizes of entrained 

 populations are indicated by dotted lines. 



TABLE 1 



NUMBERS OF EGGS, LARVAE, AND ADULTS IN UNSTOCKED 

 AND AUGMENTED WALLEYE POPULATIONS IN ONEIDA 



LAKE, NEW YORK* 



Unstocked 

 population 



Augmented 

 population 



Egg productiont 

 Larval production: 

 Swim-up larvae 



(10daysold)51 

 35-mm larvae 



(40 days old)§ 

 Adults 



13 X 10^ 

 5.4775 X 10^ 



7.4500 X 10' 



3.0 X 10' 

 466,000 



8 



13 X 10' 

 2.8944 X 10 



3.9368 X lO"^ 



13.5 X 10^ 

 574,000 



*Based on data from Forney (1976a; 1976b). 

 fFrom fecundity-at-age data. 



I From densities of swim-up larvae in net samples, at 13.6% survival from 

 hatching to swim-up. 

 51 From net samples. 

 §Estimated from survival curve in Fig. 1. 



