A look at killer whales in marine parks and aquariums


Current number of known orcas in captivity: 55


​ This page details every killer whale that is currently in captivity. Due to the lack of information surrounding Russian capture operations, the status of some of the animals listed below may be incorrect and is subject to change. It’s possible (and highly likely) that some animals have died or been transferred to a different facility to the one listed without my knowledge. Using the small amount of information that is available, a sincere attempt has been made to provide the most accurate information.


To view photos of a certain orca simply click on the orca’s name!

Key notes:
 The information presented in this table was revised in April 2020. Some data displayed previously may have been changed in light of more accurate information.
 This data was compiled from multiple sources including the National Marine Fisheries Service (NMFS), Marine Mammal Inventory Reports (MMIRs), marine mammal publicationswebsitesbooks, newspaper and news archives, government oversight agencies and marine mammal park documents. Simply click on the hyperlinks to reveal the source.
Emma Luck (@FlukePrintPhotography IG) provided a vast array of knowledge to help determine which wild caught orca belonged to which wild population and/or ecotype.
Whales captured in Icelandic waters have been listed as “North Atlantic Type 1” as they closely resemble this ecotype in terms of morphology and ecology – they’re smaller than Type 2s and feed primarily on fish (especially herring) but will also eat the occasional seal. In contrast, Type 2s are massive with noticeably downward-sloping eyepatches, and they’re strict mammal-eaters. However, it’s important to note North Atlantic killer whales are not as well studied as those in the North Eastern Pacific. It’s possible there is more variation and diversity than just two ecotypes (Type 1 and Type 2). It’s also possible that there’s greater diversity in Argentina but not all populations have been adequately studied. Those that have are believed to mammal-eaters so this general information has been applied to all orcas captured in the country.  
Estimated age at capture for whales under nine years old was calculated using “Killer whale growth rate defined by Duffield and Miller” (see below).
Killer whale status and live-captures in the waters of the Russian Far East” by O. A. Filatova, O. V. Shpak, T.V. Ivkovich, E. A. Borisova, A. M. Burdin and E. Hoyt was used to gather information on the Russian captures in 2012 and 2013.
Information regarding the remaining Russian captures was largely sourced from Russian Orcas (Facebook)
 Some other notable sources include “Orca – The Whale Called Killer” by Erich Hoyt, “Keto & Tilikum Express the Stress of Orca Captivity” by John S. Jett and Jeffrey M. Ventre, The Orca Project and Cetacean Cousins.



Killer whale growth rate defined by Duffield and Miller

Length in cm        Est. age in years
< 291                                < 1
291 – 328                          1
329 – 366                          2
367 – 404                          3
405 – 442                          4
443 – 480                          5
481 – 518                          6
519 – 552                          7
553 – 590                          8
591 – 628                          9

Duffield, D.A. and K.W. Miller, 1988. Demographic Features of Killer Whales in Oceanaria in the United States and Canada, 1965-1987. Rit Fiskideildar. 11: 297-306.


In Pacific whales, growth is approximately linear, at a mean rate of 38 cm/yr up to 10-12 or 12-16 years of age, for females and males, respectively.