I was wondering if someone could help, I need to know the environmental conditions under which an orca (killer whale) is found , and the resources it requires for survival?

The best place in the world to research things like this is the The Animal diversity web (http://animaldiversity.ummz.umich.edu/site/index.html) I have found the page for (killer whale) Orcinus orca (http://animaldiversity.ummz.umich.edu/site/accounts/information/Orcinus_orca.html) just click away. I hope this is in someway helpful to you.