The orca, also called killer whale, is a toothed whale belonging to the oceanic dolphin family, of which it is the largest member. It is the only extant species in the genus Orcinus and is recognizable by its black-and-white patterned body. A cosmopolitan species, orcas can be found in all of the world's oceans in a variety of marine environments, from Arctic and Antarctic regions to tropical seas.
Paul Spong is a Canadian neuroscientist and cetologist from originally from New Zealand. He has been researching orcas in British Columbia since 1967, and is credited with increasing public awareness of whaling, through his involvement with Greenpeace.
Cetology or whalelore is the branch of marine mammal science that studies the approximately eighty species of whales, dolphins, and porpoises in the scientific order Cetacea. Cetologists, or those who practice cetology, seek to understand and explain cetacean evolution, distribution, morphology, behavior, community dynamics, and other topics.
Corky II, often referred to as just Corky, is a female captive orca from the A5 Pod of northern resident orcas. At approximately the age of four, Corky was captured from Pender Harbour off the coast of British Columbia on December 11, 1969. She has lived at SeaWorld San Diego in San Diego, California since 1987. As of 2023, she is the oldest and longest kept captive orca.
Sealand of the Pacific was a public aquarium in South Oak Bay at The Oak Bay Marina, near the city of Victoria, in British Columbia, Canada. It housed a number of orcas: Haida, Nootka, and Tilikum. In 1991, all three were involved in an incident in which a trainer, Keltie Byrne, was killed. The aquarium subsequently closed and sold its orcas to SeaWorld.
A marine mammal park is a commercial theme park or aquarium where marine mammals such as dolphins, beluga whales and sea lions are kept within water tanks and displayed to the public in special shows. A marine mammal park is more elaborate than a dolphinarium, because it also features other marine mammals and offers additional entertainment attractions. It is thus seen as a combination of a public aquarium and an amusement park. Marine mammal parks are different from marine parks, which include natural reserves and marine wildlife sanctuaries such as coral reefs, particularly in Australia.
Orcas are large, powerful apex predators. There have been multiple killer whale attacks on humans in the wild, but such attacks are less common than those by captive orcas. In captivity, there have been several non-fatal and four fatal attacks on humans since the 1970s. Experts are divided as to whether the injuries and deaths were accidental or deliberate attempts to cause harm.
Springer, officially named A73, is a wild orca from the Northern Resident Community of orcas, which frequents the waters off the northern part of Vancouver Island every summer. In January 2002, Springer, then a calf developmentally equivalent to a human toddler, was discovered alone and emaciated some 250 miles from the territory of her family. Experts identified Springer by her vocal calls that are specific to her family, or "pod," and by examining photographs of her eye patch. They were also able to determine where Springer's pod was currently located.
Dozens of orcas are held in captivity for breeding or performance purposes. The practice of capturing and displaying orcas in exhibitions began in the 1960s, and they soon became popular attractions at public aquariums and aquatic theme parks due to their intelligence, trainability, striking appearance, playfulness, and sheer size. As of June 26, 2023, there were at least 53 orcas in captivity worldwide, 29 of which were captive-born. At that time, there were 18 orcas in the SeaWorld parks.
A4 pod is a killer whale family in British Columbia. As of March 2013, it consists of three matrilines and 15 members and is the family of Springer, the first orca to be successfully reintroduced to the wild after being handled by humans. A4 pod is part of the northern resident orcas found in coastal waters ranging from mid-Vancouver Island to southeastern Alaska up through Haida Gwaii. The community is made up of three clans known as A, G and R clans, each possessing a distinctive dialect and consisting of several related pods. A4 pod belongs to the biggest clan, A clan.
Michael Andrew Bigg was an English-born Canadian marine biologist who is recognized as the founder of modern research on killer whales. With his colleagues, he developed new techniques for studying killer whales and, off British Columbia and Washington, conducted the first population census of the animals anywhere in the world. Bigg's work in wildlife photo-identification enabled the longitudinal study of individual killer whales, their travel patterns, and their social relationships in the wild, and revolutionized the study of cetaceans.
Captured in 1964, Moby Doll was the first orca to survive in captivity for more than two days, and the second to be displayed in a public aquarium exhibit. The availability, for the first time, of an orca that could be studied at close quarters alive initiated pioneering research. From a recording of Moby Doll's calls, he was years later identified as a member of J Pod of the southern resident orcas.
The southern resident orcas, also known as the southern resident killer whales (SRKW), are the smallest of four communities of the exclusively fish-eating ecotype of orca in the northeast Pacific Ocean. The southern resident orcas form a closed society with no emigration or dispersal of individuals, and no gene flow with other orca populations. The fish-eating ecotype was historically given the name 'resident,' but other ecotypes named 'transient' and 'offshore' are also resident in the same area.
A1 pod is a killer whale family in British Columbia. It currently consists of 3 matrilines and 20 members and is the most commonly encountered pod in the Northern resident killer whale community. This community is found in coastal waters ranging from mid-Vancouver Island up through the Queen Charlotte Islands, although A1 pod has yet to be seen this far north. The community is made up of three clans known as A, G and R clans, each possessing a distinctive dialect and consisting of several related pods. A1 pod belongs to the biggest clan, A clan.
Diseases and parasites in salmon, trout and other salmon-like fishes of the family Salmonidae are also found in other fish species. The life cycle of many salmonids is anadromous, so such fish are exposed to parasites in fresh water, brackish water and saline water.
Granny, also known as J2, was a female orca of the J pod of southern resident orcas notable for her long life. Early estimates placed her birth in 1911, putting her at 105 years old at the time of her death. However, this estimate was later revealed to have been based on mistaken information and more recent studies put her at 65-80 years old. If she was 105, she would have been the oldest known orca at the time of her death. Granny lived in the northeast Pacific Ocean and coastal bays of Washington state and British Columbia. She was last seen on October 12, 2016, and was considered deceased by The Center for Whale Research in January 2017.
Whale feces, the excrement of whales, has a significant role in the ecology of the oceans, and whales have been referred to as "marine ecosystem engineers". Nitrogen released by cetacean species and iron chelate is a significant benefit to the marine food chain in addition to sequestering carbon for long periods. Whale feces can give information on a number of aspects of the health, natural history and ecology of an animal or group as it contains DNA, hormones, toxins, and other chemicals.
Lance Barrett-Lennard is a Canadian biologist specializing in the behavioural ecology and population biology of Killer whales. A molecular geneticist, Barrett-Lennard uses DNA analysis to study the dispersal, mating habits, and group structure of killer whale sub-populations in the Pacific Northwest. He is best known for his research concerning the conservation of the Southern Resident killer whale sub-population. As of 2022, he is a Senior Scientist in the Cetacean Conservation Research Program at the Raincoast Conservation Foundation.
Orcas or killer whales have a cosmopolitan distribution and several distinct populations or types have been documented or suggested. Three to five types of orcas may be distinct enough to be considered different races, subspecies, or possibly even species. The IUCN reported in 2008, "The taxonomy of this genus is clearly in need of review, and it is likely that O. orca will be split into a number of different species or at least subspecies over the next few years." Although large variation in the ecological distinctiveness of different orca groups complicate simple differentiation into types. Mammal-eating orcas in different regions were long thought likely to be closely related, but genetic testing has refuted this hypothesis.
