Osaka Aquarium Kaiyukan

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Osaka Aquarium Kaiyukan

The Kaiyukan Aquarium
Date opened May 1990 [1]
Location Osaka, Japan
Coordinates 34°39′16.1″N 135°25′44.0″E / 34.654472°N 135.428889°E / 34.654472; 135.428889Coordinates: 34°39′16.1″N 135°25′44.0″E / 34.654472°N 135.428889°E / 34.654472; 135.428889
Land area 26,570 square metres (286,000 sq ft) [2]
Number of animals 29,000 [3]
Number of species 470 [3]
Volume of largest tank 5,400 cubic metres (190,699 cu ft) [4]
Total volume of tanks 10,941 cubic metres (386,378 cu ft) [4]
Memberships JAZA[5]

The Osaka Aquarium Kaiyukan (海遊館 Kaiyūkan?, known as the Kaiyukan) is an aquarium located in the ward of Minato in Osaka, Japan, near Osaka Bay. It is one of the largest public aquariums in the world,[6] and is a member of the Japanese Association of Zoos and Aquariums (JAZA).

The aquarium is about a five-minute walk from Osakako Station on the Osaka Municipal Subway Chūō Line, and is next to the Tempozan Ferris Wheel.[6]


The walk-through aquarium displays marine life in several habitats comprising 27 tanks in 16 main exhibits with a total volume of 10,941 tons of water. The habitats are from the Ring of Fire area of the Pacific Ocean. The largest tank is 9 metres (30 ft) deep and holds 5,400 cubic metres (190,699 cu ft) of water and a variety of fish including manta rays and a whale shark.[4]

The tanks used in the aquarium are made of 314 tonnes (346 tons) of acrylic glass. The largest single pane measures six meters by five meters by thirty centimeters and weighs roughly 10 tons. At the thicknesses used, regular glass would be unwieldy and would not have the desired transparency.

The themes, displays and their respective organisms at Kaiyukan are as follows;

Tunnel Tank; Chromis Notata, Siganus Fucescens, rays and the like

Japanese Forests; Oriental small-clawed otter、Satsukimasu、Japanese Giant Salamander and the like

Aleutian Islands; Sea otters、 Rainbow Trout、Sebastes inermis and the like

Monterey Bay; spotted seals and California sea lions

Panama Bay; sloths and porcupinefish

Ecuadorian Jungle; Arapaima, Iguana, Squirrel Monkey and Capybaras

Antartica; different varieties of penguins

Tasmanian Sea; Pacific dolphins

Great Barrier Reef; Chromis Notata, butterflyfish and other species

The Pacific Ocean; This is largest tank in the aquarium the whale shark, Manta Ray, Bluefin Tuna and other large fish of like size

Seto Inland Sea; Fish native to Seto, Japan

The giant kelp forest; Sunfish squid and other species

Chilean Rocks; South American pilchard、Japanese anchovy and other species

Cook Strait; Sea Tortoises and other species

Japanese trench; Japanese spider crab, largehead hairtail, North pacific giant octopi, marbled rockfish and other species

Deep sea Zone; Giant Isopods, Japanese lobsters, trumpetfish and other species

Jellyfish Area; Different varieties of Jellyfish


The Kaiyukan’s conceptual design, architecture, and exhibit design was led by Peter Chermayeff of Peter Chermayeff LLC while at Cambridge Seven Associates.[1]


  1. ^ a b "Peter Chermayeff LLC". Peter Chermayeff LLC. Retrieved 23 July 2010. 
  2. ^ "Osaka Aquarium (Kaiyukan)". Frommer's. Retrieved 23 July 2010. 
  3. ^ a b "About Us". Osaka Waterfront Development Co. Ltd. Retrieved 23 July 2010. 
  4. ^ a b c "Exhibition". Osaka Waterfront Development Co. Ltd. Retrieved 23 July 2010. 
  5. ^ "List of Aquariums". Japanese Association of Zoos and Aquariums. Retrieved 12 June2010. 
  6. ^ a b "Osaka Aquarium". GoJapanGo. Retrieved 20 April 2012. 

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