The killer whale or orca is a toothed whale belonging to the oceanic dolphin family, of which it is the largest member. Killer whales have a diverse diet, although individual populations often specialize in particular types of prey. Some feed exclusively on fish, while others hunt marine mammals such as seals and other species of dolphin. They have been known to attack baleen whale calves, and even adult whales. Killer whales are apex predators, as no animal preys on them. A cosmopolitan species, they can be found in each of the world's oceans in a variety of marine environments, from Arctic and Antarctic regions to tropical seas, absent only from the Baltic and Black seas, and some areas of the Arctic Ocean.
Whale watching is the practice of observing whales and dolphins (cetaceans) in their natural habitat. Whale watching is mostly a recreational activity, but it can also serve scientific and/or educational purposes. A study prepared for International Fund for Animal Welfare in 2009 estimated that 13 million people went whale watching globally in 2008. Whale watching generates $2.1 billion per annum in tourism revenue worldwide, employing around 13,000 workers. The size and rapid growth of the industry has led to complex and continuing debates with the whaling industry about the best use of whales as a natural resource.
The North Atlantic right whale is a baleen whale, one of three right whale species belonging to the genus Eubalaena, all of which were formerly classified as a single species. Because of their docile nature, their slow surface-skimming feeding behaviors, their tendencies to stay close to the coast, and their high blubber content, right whales were once a preferred target for whalers. At present, they are among the most endangered whales in the world, and they are protected under the U.S. Endangered Species Act and Marine Mammal Protection Act and Canada's Species at Risk Act. There are about 400 individuals in existence in the western North Atlantic Ocean—they migrate between feeding grounds in the Labrador Sea and their winter calving areas off Georgia and Florida, an ocean area with heavy shipping traffic. In the eastern North Atlantic, on the other hand—with a total population reaching into the low teens at best—scientists believe that they may already be functionally extinct. Vessel strikes and entanglement in fixed fishing gear, which together account for nearly half of all North Atlantic right whale mortality since 1970, are their two greatest threats to recovery.
Keiko, , was a male orca who portrayed Willy in the 1993 film Free Willy. He was eventually freed in Iceland, in July 2002, but did not fully adapt to the wild and died in December 2003 in Norway.
The Channel Islands National Marine Sanctuary is a sanctuary off the Pacific coast of Southern California. The National Marine Sanctuary program is administered by the National Oceanic and Atmospheric Administration.
SeaWorld is a United States chain of marine mammal parks, oceanariums, animal theme parks, and rehabilitation centers owned by SeaWorld Entertainment. The parks feature killer whale, sea lion, and dolphin shows and zoological displays featuring various other marine animals. There are operations located within the United States in Orlando, Florida; San Diego, California; San Antonio, Texas; later outside the United States such as Abu Dhabi, United Arab Emirates; and previously Aurora, Ohio. On March 5, 2007, SeaWorld Orlando announced addition of the Aquatica water park to its adventure park, which already includes SeaWorld and Discovery Cove.
Cetology or Whalelore is the branch of marine mammal science that studies the approximately eighty species of whales, dolphins, and porpoise 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.
The Vancouver Aquarium is a public aquarium located in Stanley Park in Vancouver, British Columbia, Canada. In addition to being a major tourist attraction for Vancouver, the aquarium is a centre for marine research, conservation and marine animal rehabilitation.
The National Marine Fisheries Service (NMFS) is the United States federal agency responsible for the stewardship of national marine resources. The agency conserves and manages fisheries to promote sustainability and prevent lost economic potential associated with overfishing, declining species, and degraded habitats.
The Alaska SeaLife Center, Alaska’s premier public aquarium and Alaska's only permanent marine mammal rehabilitation facility, is located on the shores of Resurrection Bay in Seward in the U.S. state of Alaska. Open since May 1998, it is dedicated to understanding and maintaining the integrity of the marine ecosystem of Alaska through research, rehabilitation, conservation, and public education. It is the only facility in the world specifically dedicated to studying the northern marine environment and the only one designed at the outset to combine research with public education and visitor components. The Alaska SeaLife Center generates and shares scientific knowledge to promote understanding and stewardship of Alaska's marine ecosystems.
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.
Luna also known as L98 or Tsu'xiit, was a killer whale (orca) born in Puget Sound. After being separated from his mother while still young, Luna spent five years in Nootka Sound, off the west coast of Vancouver Island.
Springer, officially named A73, is a wild orca from the Northern Resident community of orcas which every summer frequent the waters off the northern part of Vancouver Island, British Columbia (BC). In 2002, Springer, then a calf developmentally equivalent to a human toddler, was discovered alone and emaciated some 250 miles from her family's territory. Experts identified Springer by her vocal calls that are specific to her pod and by examining photographs of her eye patch. They were also able determine where Springer's pod was currently located.
Captive killer whales are live killer whales which are held in captivity by humans, often for breeding or performance purposes. The practice of capturing and displaying these whales in exhibitions began in the 1960s, soon becoming popular attractions at public aquariums and aquatic theme parks due to their intelligence, trainability, striking appearance, playfulness, and sheer size. As of September, 2016, there were 56 orcas in captivity worldwide, 33 of which are captive-born. There are 13 live orcas in the Seaworld parks.
Dr. Michael A. Bigg (1939–1990) was a 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 conducted the first population census of the animals. 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.
Morgan is a female orca who was captured in the Wadden Sea, off the northwestern coast of the Netherlands in June 2010. She was found in an unhealthy condition, severely underweight and malnourished. She lived several months at the Dolfinarium Harderwijk in the Netherlands. After it became clear that the basin at Dolfinarium was too small, multiple options were considered, including releasing Morgan and transferring her to another facility. Over a year later, after litigation and debate between scientists, a Dutch court ruled that she was to be moved. Morgan was transported to the Loro Parque in Spain in November 2011.
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 are a significant benefit to the marine food chain in addition to sequestering carbon for long periods of time. 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.
