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21-686: The park can be accessed from Kasai-Rinkai Park Station on the Keiyō Line . Tokyo Sea Life Park has its origins in the Uonozoki (literally "fish-viewing room"), the first public aquarium in Japan that was opened in 1882. This public aquarium existed only during a temporary exposition and was closed at the end of the exposition. Afterwards, the Uonozoki was demolished. In 1929, the Ueno Aquarium

42-537: A large, round tank with a viewing area in its center. When the park opened, it was the largest and most popular public aquarium in Japan. The annual number of visitors in the first year of the park reached 3.55 million, far exceeding the Japanese record at that time (2.4 million at Suma Aqualife Park in 1987). The record was not broken again until the opening of the Osaka Aquarium . Tokyo Sea Life Park held

63-490: A thickness of 7 centimetres (0.23 ft) were installed. In commemoration of the 100th anniversary of the Ueno Zoo, a plan was formulated to build the largest aquarium in Japan. The new aquarium officially opened in 1989 as Tokyo Sea Life Park. All specimens kept in the Ueno Aquarium, which subsequently closed, were inherited by Tokyo Sea Life Park. Approximately 650 species are kept in 47 tanks, including tuna that inhabit

84-537: A week. The larval stage lasts for up to 18 months during which they feed mainly on krill. They become sexually mature at four years, and normally live up to about eight years, but sometimes as long as twelve. In the Antarctic autumn, adult C. rastrospinosus migrate to shallow waters to spawn at a depth of 200–300 m. The eggs are scattered and hatch six months later around April. Haemoglobin gives oxygenated blood its red colour. Unlike other vertebrates , fish of

105-702: Is known for having transparent haemoglobin -free blood. C. rastrospinosus live in the Southern Ocean up to a depth of 1 km. They are most commonly found on the seabed at 200–400 m. They range from the South Orkney Islands , South Shetland Islands to the Antarctic Peninsula . They grow up to 52 centimetres (20 in) and average 30 centimetres (12 in). The adults feed on krill and other fish. Larvae are 17 mm long when they hatch, and grow by about 2 mm

126-475: The Antarctic icefish family ( Channichthyidae ) do not use haemoglobin to transport oxygen around their bodies; instead, the small amount of oxygen that simply dissolves in blood plasma is utilized. In 2011 Tokyo Sea Life Park claimed that C. rastrospinosus has totally transparent blood "like clear water", after dissecting a specimen. In 1954, Ruud noted that Chaenocephalus aceratus , another member of this family, had almost transparent blood, in contrast to

147-518: The Wikimedia System Administrators, please include the details below. Request from 172.68.168.226 via cp1108 cp1108, Varnish XID 259860894 Upstream caches: cp1108 int Error: 429, Too Many Requests at Thu, 28 Nov 2024 11:06:12 GMT Chionodraco rastrospinosus The ocellated icefish ( Chionodraco rastrospinosus ) is a fish of the family Channichthyidae . It lives in the cold waters off Antarctica and

168-518: The captive breeding of bluefin tuna, and spawning was confirmed for the first time in captivity in 2014. Tokyo Sea Life Park continuously monitors the natural environment in Tokyo. It conducts joint research of water quality maintenance technologies (such as denitrification) with private companies, and researches improving breeding environment technologies. On February 12, 2013, the ocellated icefish ( Chionodraco rastrospinosus ) spawned in captivity for

189-480: The facility is aging after more than 30 years in existence, considerations are underway for a new facility. The park solicited opinions from the citizens of Tokyo at the end of 2018. In January 2019, the park formulated a basic plan for a new facility on the premises. In February 2020, a group of experts approved the plan report. The expansion is expected to have a total floor area of about 22,500 square metres, with maintenance costs of 24 to 27 billion yen. A business plan

210-422: The first aquarium in Japan to successfully hold Pacific bluefin tuna and scalloped hammerhead specimens in long-term captivity. The park has also established a method for growing seaweed that require high water quality, water flow, and sufficient light, such as giant kelp , in a closed indoor tank. Tokyo Sea Life Park maintains friendly ties with Monterey Bay Aquarium in regards to kelp exhibition. In 1999,

231-463: The first time on record. About 500 eggs, each with a diameter of about 4.5 mm, were laid. Although the gestation time was unknown, the park speculated the eggs would take six months to hatch, like other Antarctic fish species. The first egg subsequently hatched in May of the same year. This was the first time an ocellated icefish had been bred in captivity. On March 3, 2012, a Humboldt penguin kept at

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252-479: The mass mortality was not caused by a single factor, but by the combined effects of multiple direct and indirect factors.　 After consultation with various experts, measures were taken to address animal safety in the tank and prevent future incidents. More tuna were also brought into the park. The current population in the tank has returned to a pre-2014 level, and is considered stable. Kasai-Rinkai Park Station Too Many Requests If you report this error to

273-547: The only captive fish. A male and female pair were donated along with other species by fishermen of the Fukuei-maru krill trawler as part of a programme to collect bycatch for the park. In January 2013 the female spawned, and by 7 May the first egg hatched with about 20 more larva in the following two weeks. Previously, live specimens have been held for scientific research elsewhere. DeWitt, H. H. & Jean-Claude Hureau. 1979. Fishes collected during "Hero" cruise 72-2 in

294-489: The park acquired two blue sharks which inhabited their tanks for 210 and 246 days. This was the longest captivity record for this species, until the park was overtaken by the Sendai Umino-Mori Aquarium . In 2020, the park hosted two more blue sharks and kept them for five months. At Tokyo Sea Life Park, staff work on the conservation and breeding of both Japanese and foreign rare species. In 2007,

315-578: The park also succeeded in the breeding of leafy seadragons . The Japanese fire belly newt is also kept at Ueno Zoo, Tama Zoological Park , and Inokashira Park Zoo , with the four institutions working together on conservation efforts. The results of zoological research in a wide range of fields are utilized for exhibitions. Tokyo Sea Life Park conducts surveys and research on the breeding of aquatic organisms by accumulating data on feeding routines, habitats, and breeding environments, as well as inspections and dissections of dead individuals. The park also works on

336-475: The park escaped into Tokyo Bay. On May 24 of the same year, the penguin was found at the foot of Gyotoku Bridge  [ ja ] . The penguin was safely returned to the park and went back on exhibit on June 7. On December 1, 2014, 63 bluefin tuna , 67 mackerel tuna , and 35 striped bonito were kept in a large tank for migratory fish. Starting in that month, these fish died rapidly, one after another. The mackerel tuna were wiped out by January 18, 2015, and

357-416: The striped bonito on January 26. By January 26, only 3 bluefin tuna were left in the tank. While the cause has not been determined, pathological tests revealed a virus in the spleen cells of bluefin tuna and mackerel tuna. One more bluefin tuna died on February 25, and another on March 24, leaving only one remaining. In April 2016, the park announced the final results of its investigation, which indicated that

378-543: The world's first successful exhibition of nurseryfish . In addition, many of the species on exhibit are directly and locally collected by the Research Section of the Breeding and Exhibition Division. Rare species can be seen here, especially from polar regions. Admission is free on the following days: May 4 ( Greenery Day ), October 1 (Tokyo Citizen's Day), and October 10 (Tokyo Sea Life Park's anniversary). As

399-791: The yellowish blood of other members. C. aceratus and C. rastrospinosus both fail to express the major adult α-globin , α1, due to the same 5' truncation of the gene, and have lost the β-globin gene entirely. Zhao et al. propose that an ancestral channichthyid fish lost expression of both genes through a single mutation. Antarctic icefish also have very few erythrocytes . It is believed they benefit from loss of reliance on haemoglobin-containing erythrocytes for oxygen transport by having less viscous, more easily pumped blood. They compensate for this loss by having lower metabolic rates, larger gills, scaleless skin that can contribute more to gas exchange, wider capillaries and significantly increased blood volume and cardiac output. Tokyo Sea Life Park holds

420-399: Was opened in the same location at Ueno Zoo. In 1952, the aquarium started breeding saltwater fish based on the experimental results of filtration equipment. The New Ueno Aquarium was subsequently opened in 1964. The New Ueno Aquarium started to use acrylic glass for large tanks in earnest. In 1964, acrylic panels with a height of 2 metres (6.6 ft), a width of 18 metres (59 ft), and

441-399: Was to be proposed by the end of 2020, with the new aquarium expected to open in 2026. Although the park is large with many exhibits, displays used to only show the names and pictures of species in each tank. There are also photo guides and rooms with specialized tour staff. As a service improvement, digital photo frame panels with commentary were added next to tanks in May 2011. The park was

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