100 



^75 



liJ 



050 



cr 



u 



a. 



25 



m 



MULTIPLE HEMORRHAGE- 

 PERINATAL COMPLEX 



MICROBIAL INFECTION 



HOOKWORM DISEASE 



TRAUMA 

 MALNUTRITION 



UNSUITABLE FOR EXAMINATION 

 AND UNDETERMINED CAUSE 



161 



SAMPLE SIZE 



1964 



1966 



1967 



REEF 



132 



NORTHEAST PT 



98 



ISO 



YEAR 



Figure 7. — Percentage of seal pups that died of various causes. Reef Rookery study area 1, 1964 and 1966-68, and 

 Northeast Point study area 3, 1967 and 1968, St. Paul Island. 



MULTIPLE HEMORRHAGE 

 PERINATAL COMPLEX 



1964 1965 



Figure 8. — Number of seal pups that died of various causes. Reef Rookery study area 1, 1964 and 1966-68, and 

 Northeast Point study area 3, 1967 and 1968, St. Paul Island. 



10 



