POWELL. JAMES, and HURD: MATING ABILITY OF MALE KING CRAB 



100 



90 - 

 = 80 



70- 



60 



50 



00 



SMALL 



OLD SHELLS 



SMALL 



NEW SHELLS 



LARGE 



OLD SHELLS 



LARGE 



NEW SHELLS 



1 I \ T 



3 6 9 12 



NUMBER OF SUCCESSIVE FEMALES MATED 



I 

 15 



Figure I. — Mating ability of male king crabs expressed as percentage of eggs fertilized. 



100 



-I 



3 



40- 

 30 - 



20 



UJ 10 



< 



bJ 

 q: 



00- 



J\ 



SMALL 



NEW SHELLS 



LARGE \ 



NEW SHELLS-^2^ 



SMALL 



OLD SHELLS - 



\ 



-LARGE 

 OLD SHELLS 



I I 



6 9 



NUMBER OF SUCCESSIVE FEMALES MATED 



"T" 

 12 



15 



Figure 2. — Mating ability of male king crabs expressed as relative fullness of brood chamber of 



mated females. 



177 



