85 



Table 1. — Marine Mammal Births In Aquariums, Zoos, and Marine Zoological Parks in North 

 America From Census Data, 1976-June 1993 — Continued 



Species 



No. of births 1976- 

 June 1993 



Grey seal (Halichoerut grypus) 



Northern fur seal (Callorhinus ursinua) 



Southern fur seal (Arctocephalus 8pp) 



Steller's sea lion (Eumetopias Jubata) 



Southern sea lion (Otaria byronia) 



Pacific walrus (Odobenut roamarus) 



Elephant seal (Mirounga angustirostris) 



Cetacea: 



Bottlenose dolphin (Tuniopa truncatus) 



Killer whale (Orcinus orca) 



Commerson's dolphin (Cephalorhynchut commeraonii) 



Beluga (Delphinetpterua leucaa) 



Pac. white-sided (Lagenorhynchua obliquidena) 



Pilot whale (Globicephala app) 



False killer whale (Paeudorca craaaidena) 



Sirenia: West Indian manatee (Trichechua manatua) 



Camivora: Sea otter (Enhydra lutria) 



87 

 43 

 24 

 14 

 13 

 11 

 1 



298 

 22 

 11 

 8 

 4 

 2 

 1 



29 

 38 



Table 2. — Percentages of Current Inventories That Are Captive Born 



Species 



U.S. and Canada census 

 data June 1993 (percent) 



Pinnipeds: 



California sea \\on(Zalophua califomianua) 



Grey seal (Halichoerua grypua) 



Hart)or seal (Phoca vitulina) 



Northern fur seal (Callorhinua urainua) 



Cetaceans: 



Commerson's dolphin (Cephalorhynchua commeraonii) 



Bottlenose dolphin (Turaiopa truncatua) 



Killer whale (Orcinua orca) 



Beluga (Delphinapterua leucaa) 



398/700=55.5 

 21/40 =52,5 



124/263=47.0 

 12/29 =41.4 



5/9 =56 



115/348=33.0 



10/28 =36 



4/35 =11 



Table 3. — Maximum Age, June 1993; Data tor Marine Mammal Species Not Listed Here Are 



Available in Asper et al., 1990 



Species 



Pinnipeds: 



California sea WonfZalophua califomianua) 



Harbor seal (Phoca vitulina) 



Grey seal (Halichoerua grypua) 



Northern fur seal (Callorhinua urainua) 



Cetaceans: 



Bottlenose dolphin (Turait^a truncatua) 



Beluga (Delphinapterua leucaa) 



Killer whale (Orcinua orca) 



iThese are estimated ajes al capture and may be as much as 5 years higher than estimated here 



