Igor

male Pacific walrus (O. r. divergens)

wild caught in 1982

deceased on April 11th, 2013

Ancestors and Descendants

Offspring

♂ Nikolai (birth 1995-Jun-17)

♂ Boika (birth 2003-Jun-22)

♀ Raisa (birth 2004-Jun-22)

♀ Pavla (death 2009-May-09)

♂ stillborn (death 2011-Mar-29)

Transfer History

  1. capture 1982 in Alaska, United States

  2. transfer 1982 to SeaWorld Orlando

  3. transfer 1985-Feb-26 to Dolfinarium Harderwijk

  4. death 2013-Apr-11 at Dolfinarium Harderwijk

Physical Data

The dates listed here generally represent the time at which the measurements were published, not necessarily the date on which they were taken.

Weight

  • 1982: 60 kg · 132 lb

  • 1988: 750 kg · 1,653 lb

  • 1988: 794 kg · 1,750 lb

  • 1988: 791 kg · 1,743 lb

  • 1988: 784 kg · 1,728 lb

  • 1994-Mar: 1,200 kg · 2,645 lb

Diet

"The animals were fed 3 to 6 times per day on an average diet of 35% herring (Clupea harengus; approx. 8880 kJ/kg), 26% mackerel (Scomber scombrus; approx. 9550 kJ/kg), 9% sprat (Sprattus sprattus; approx. 10.400 kJ/kg), 2% whiting (Merlangius merlangus; approx. 4750 kJ/kg), and 28% squid (Illex spp.; approx. 1000 kJ/kg) by weight. Vitamins (Seavit>, 1 tablet per 2.5 kg of food) were added to this thawed diet." (R. A. Kastelein et al, 2000)

  • 1986: 4,500 kg · 9,920 lb annually

  • 1994: 7,500 kg · 16,534 lb annually

  • 1996: 13,000 kg · 28,660 lb annually

  • 1997: 11,000 kg · 24,250 lb annually

Image Gallery

No images available at this time.

Identifiers

Local

Other

Notes and Information

There is the possibility that this animal's ID while housed at SeaWorld may have been SWC-Ord-8229 "Brillo", rather than the listed identifiers.

One source states this walrus arrived at Dolfinarium Harderwijk in December of 1985, although official documents and media publications refute this.

References

  • 1985-Feb-26. Leidsch Dagblad. Dolfijnen uit Florida overgevlogen. Retrieved from Erfgoed Leiden [archive]

  • 1989. Kathy Irene Fisher. Food habits and digestive efficiency in walrus, Odobenus rosmarus. Retrieved from University of Manitoba [archive].

  • 2000-Jan. R. A. Kastelein et al. Food consumption and body weight of captive Pacific walruses (Odobenus rosmarus divergens). Retrieved from researchgate.net [archive]

  • 2014-Dec-15. Ronald A. Kastelein et al. Behavior and body mass changes of a mother and calf Pacific walrus (Odobenus rosmarus divergens) during the suckling period. Retrieved from Wiley Online Library.

  • 2020-Mar-20. Rijksoverheid. Besluit op Wob-verzoek over dolfinarium. Retrieved from Rijksoverheid.nl [archive].