Tōkyō Sea Life Park

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How about diving into an underwater world without getting wet? That is what awaits us at the Tokyo Sea Life Park.

Tokyo Sea Life Park is not just an aquarium. It is a journey through diverse aquatic habitats. Opened in October 1989 the park quickly became one of Japan’s most popular aquariums.

Imagine a vast donut-shaped tank. This tank holds 2200 tons of water. Bluefin tunas swim freely here. This is just one highlight of the park.

The Tokyo Sea Life Park has its roots in Japan’s first public aquarium. It was called Uonozoki meaning fish-viewing room. Uonozoki opened in 1882 but it was temporary. It closed after the exposition.

Later in 1929 the Ueno Aquarium opened at Ueno Zoo. This aquarium evolved over the years. It began breeding saltwater fish in 1952. The New Ueno Aquarium opened in 1964 using large acrylic glass tanks.

To celebrate the Ueno Zoo’s 100th anniversary, Tokyo Sea Life Park was created. It became the largest aquarium in Japan in 1989. All the animals from the Ueno Aquarium moved here when it closed.

Today Tokyo Sea Life Park houses about 650 species in 47 tanks. The park is divided into different exhibit sections. You can explore the Seas of the World the Life of the Deep Sea and the Sea of Tokyo. You can also discover Life in Freshwater.

One of the most impressive exhibits is the Voyagers of the Sea tank. It holds 2200 cubic meters of water. This was the largest indoor tank in Japan when it was built. It is home to Pacific bluefin tuna scalloped hammerhead and other species.

Tokyo Sea Life Park was the first aquarium in Japan to successfully keep Pacific bluefin tuna and scalloped hammerhead sharks long-term. The park also succeeded in growing giant kelp indoors. This requires high water quality strong water flow and lots of light.

The park is also dedicated to research and conservation. Staff work to breed and conserve rare species. They focus on both Japanese and foreign species. Examples include Humboldt penguins fairy penguins and Japanese fire belly newts.

In 2012 a Humboldt penguin escaped into Tokyo Bay. It was found after several weeks. The penguin was safely returned to the park and put back on display.

Tokyo Sea Life Park once experienced a mass tuna death incident in 2014. Many bluefin tuna mackerel tuna and striped bonito died rapidly. The cause was likely a combination of factors.

Tokyo Sea Life Park is planning for the future. Considerations are underway for a new facility to replace the aging one. The new aquarium is expected to open in 2026.

Before you leave be sure to visit the penguin exhibit. You can see Humboldt penguins king penguins and rockhopper penguins. In the summer the king penguins and rockhopper penguins are kept indoors to stay cool.

As you exit the Tokyo Sea Life Park, consider the journey of aquatic life you have witnessed. From tiny fish to majestic tuna each creature plays a vital role in our planet’s ecosystem. The Tokyo Sea Life Park creates awareness of the importance of marine conservation.

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