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The Salish Sea orcas have become an iconic natural treasure of the region and a symbol of the area's ecological productivity. Many whale watching organizations throughout the region target the orcas, including resident and transient groups, and often work with nonprofit organizations like the Center for Whale Research and The Whale Museum to ...
While many chemicals can be found in the tissues of orca, the most common are the insecticide DDT, polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs). [116] Each of these have detrimental physiological effects on orca, [ 117 ] and can be found in such high concentrations in dead individuals that those individuals must ...
The "type C" orca has two-toned grey colouring, including a dark "dorsal cape", in body areas where most orcas have solid black colouring. Research is ongoing into whether one or more orca types are distinct species in need of protection.
Killer Whales: the natural history and genealogy of Orcinus orca in British Columbia and Washington (2nd ed.). Vancouver, BC: UBC Press. ISBN 9780774808002. Hoyt, Erich (2013). Orca: the whale called killer (eBook ed.). Richmond Hill, Ontario: Firefly Books Ltd. ISBN 9781770880672. Hubbard-Morton, Alexandra (2002).
“The reality blew our minds,” the boaters said of the sighting in Norway.
Cowperthwaite notes the California Orca Protection Act, which bans the breeding or captivity of orcas, and a Canadian act prohibiting the captivity of marine mammals.
Type A or Antarctic orcas look like a "typical" orca, a large, black-and-white form with a medium-sized white eye patch, living in open water and feeding mostly on minke whales. [ 2 ] [ 4 ] Type B1 or pack ice orcas are smaller than type A. [ 4 ] It has a large white eye patch.
The genus Orcinus was published by Leopold Fitzinger in 1860, [4] its type species is the orca named by Linnaeus in 1758 as Delphinus orca.Taxonomic arrangements of delphinids published by workers before and after Fitzinger, such as John Edward Gray as Orca in 1846 and Orca (Gladiator) in 1870, are recognized as synonyms of Orcinus.