2021.12.07

Living creature information

Freshwater angelfish juveniles on display

The juvenile "scalare angelfish", a type of Freshwater angelfish that came to Kaiyukan through an exchange with the Yamaguchi Prefecture aquarium "Shimonoseki Municipal Aquarium Kaikyokan", is on display in the "Ecuador Rainforest" tank in the aquarium. This individual hatched at Kaikyokan in April 2021 and has grown to about 6 cm in length (about 1 cm immediately after hatching). Kaiyukan is exchanging a "Porcupinefish (porcupine fish)" born in January 2021. Through this exchange and breeding exhibition, we aim to further develop breeding and breeding techniques. Location: "Ecuador Rainforest" tank in the aquarium Type: Freshwater angelfish(total length approximately 6 cm, 20 pieces) *Exhibition may end without notice depending on the physical condition of the creature. Freshwater angelfish English name: Freshwater angelfish Scientific name: Pterophyllum scalare It lives in rivers and lakes with gentle water currents. They have a distinctive diamond- Freshwater angelfish body and a shiny silvery body color, and grow to about 15cm as adults.

2021.11.11

Living creature information

*The exhibition has ended. We are currently exhibiting the freshwater jellyfish, the Moon jellyfish!

From Thursday, November 11, 2021, the freshwater jellyfish "Jellyfish" . Mamizu jellyfish *Exhibition has ended [Limited time "Mamizu jellyfish" exhibition summary] Exhibition period Approximately 2 weeks from November 11 (planned) Location "Jellyfish" on the 3rd floor of Kaiyukan Size Umbrella diameter approximately 1 cm *The exhibition period and number of exhibits may change without notice depending on the condition of the creatures. [About Mamizu jellyfish] English name Freshwater Jellyfish Scientific name Craspedacusta sowerbyi A type of jellyfish in the order Freshwater Jellyfish of the class Hydrozoa, it lives in temperate and tropical freshwater areas including Japan. It is often seen from summer to autumn, but it is a mysterious jellyfish that does not appear in the same place every year.

2021.11.03

Research and studies

We measured the total length of a Whale shark!

In commemoration of "Weight Anniversary" on November 1, we measured the total length of the Whale shark currently on display in the "Pacific Ocean" tank in the Aquarium today, November 3 (Wednesday, holiday). The results are as follows. Total length Estimated weight Estimated age Yu: 5m 85cm Last year (5m 70cm) 1,500kg (1,400kg) 14-15 years old Umi: 4m 80cm Last year (4m 50cm) 800kg (750kg) 6-7 Kaiyukan , we measure the total length of Whale shark as part of our ecological research and health management of Whale shark , whose ecology is still unknown. The total length is measured using a tape measure, and this method was achieved by training by touching the Whale shark's body while it was being fed. Through the Weighing Anniversary, we hope to introduce the healthy growth of living creatures and to encourage interest in the natural environment. [Comment from the person in charge] Both Yu and Umi have grown well this year. The reason we were able to measure the Whale shark without any hesitation is thanks to the daily training it undergoes. We will continue to measure it regularly and make efforts to manage its health.

2021.10.29

news

*The event "Kaiyukan after closing: A tranquil sea that fills the soul" has now finished.

"Come to think of it, when was the last time you went to Kaiyukan?" If you feel that way, we want you to experience Kaiyukan thoroughly. We will be open for a limited time each day after the aquarium closes. *This event has ended. 1. Solo Edition 11/5 (Fri), 6 (Sat), 21 (Sun), 22 (Mon) 2. Parent and Child Edition 11/12 (Fri) and 13 (Sat) 3. Adult Couple Edition 11/26 (Fri) and 27 (Sat) Reservation-only, small group size Enjoy Kaiyukan in a relaxed atmosphere that is about 20% of the usual Back Stage Viewing at Night View from above of the "Pacific Ocean" tank illuminated at night. The mysterious world of the sea spreads out below you Scenes that can only be seen at night If you sneak up on the sleeping creatures, you may see things that you can't see during the day A quiet space with no background music Listen to the sounds of the creatures or your favorite music, and enjoy it however you like Dive into Kaiyukan at your own pace If you're feeling a little brave about coming alone, don't worry. Everyone will be alone on this day. Relax in the quiet Kaiyukan and spend some time just for yourself. Event details Dates: Friday, November 5th, Saturday, November 6th, Sunday, November 21st, Monday, November 22nd Time: 18:30-21:00 *Last entry at 20:00 Fee: 3,400 yen/person Target: Limited to one person, age 16 and over Other: ・The shop is open until 21:00 ・The in-Aquarium cafe "ROF" only serves drinks and is open until 20:30 (last orders at 20:00) Purchase here *Tickets are only sold online *Photography using strobes, flashes, speed lights, etc. is prohibited * tank are turned off to ensure the health of the creatures *Some creatures are sleeping in the back yard A parent-child getaway for once For those who haven't had a chance to visit since coming here as a child. Please come and take a stroll under the sea and reminisce. Event details Dates: Friday, November 12th and Saturday, November 13th Time: 18:30-21:00 *Last entry at 20:00 Fee: 6,800 yen/group Target audience: Parents and children (limited to 2 people per group), junior high school students and older Other: ・The shop is open until 21:00 ・The in-Aquarium cafe "ROF" only serves drinks and is open until 20:30 (last orders at 20:00) Purchase here *Tickets are only sold online *Photography using strobes, flashes, speed lights, etc. is prohibited *Some tank are turned off to ensure the health of the creatures *Some creatures are sleeping in the back yard A relaxing time for the two of you for the first time in a while A peaceful moment that can only be enjoyed by adults... Take this opportunity to spend a wonderful evening slowly gazing at the tank. Event details Dates: Friday, November 26th and Saturday, November 27th Time: 18:30-21:00 *Last entry at 20:00 Fee: 6,800 yen/couple Eligibility: Couples (2 people per couple) aged 40 and over only Other: ・The shop is open until 21:00 ・The in-Aquarium cafe "ROF" only serves drinks and is open until 20:30 (last orders at 20:00) Purchase here *Tickets are only sold online *Photography using strobes, flashes, speed lights, etc. is prohibited *Some tank will have the lights turned off to ensure the health of the creatures *Some creatures will be sleeping in the back yard

2021.10.08

Living creature information

The young "Tufted puffin" seabird born on July 30th has left the nest

The nickname has been decided as "Chirippu"! The baby "Tufted puffin " born on July 30, 2021 has left the nest in the "Aleutian Islands" tank in the Aquarium . Tufted puffin baby (photographed on September 26, 2021) Tufted puffin chick (photographed on August 5, 2021) This time, on September 26, 2021 (58 days after birth), the baby bird was spotted emerging from the nest in the tank , and the baby bird, which had not been visible until now, can now be seen from the viewing corridor. The nickname of the baby bird has also been decided as "Chirippu". The nickname of the Tufted puffin at Kaiyukan comes from the place name of Hokkaido, Hokkaido, where the Tufted puffin lives in Japan. Comments from the aquarium keeper in charge of the birth of this Tufted puffin I was relieved that it had safely left the nest. I was surprised to see it swimming the next morning when I predicted that it would soon leave the nest. Unlike the adult birds, the young ones have thin beaks and dull yellow legs. They are characterized by being very busy scratching the water when they are on the surface of the water. Recently, they have started to come ashore and eat food from the hands of the staff. The nickname "Chirippu" has been decided! A young " Tufted puffin " bird born on July 30, 2021 has left its nest in the "Aleutian Islands" tank in the Aquarium . Young Tufted puffin(photographed on September 26, 2021) Tufted puffin chick (photographed on August 5, 2021) On September 26, 2021 (58 days after birth), the young bird was spotted emerging from its nest in the tank, and the young bird, which had not been visible until now, can now be seen from the viewing corridor. The nickname for the young bird has also been decided as "Chirippu". The nickname of Kaiyukan's Tufted puffin comes from the place name of the Tufted puffin habitat in Eastern Hokkaido, Japan. ⇒ Comments from the aquarium keeper on the birth of this Tufted puffin I was relieved that it had safely left the nest. I was surprised to see it swimming the next morning, as I had expected it to leave the nest soon. Unlike the adults, the young birds have thin beaks and dull yellow legs. When they are on the surface of the water, they are known to be very busy paddling the water. Recently, they have started coming ashore and eating food from the hands of the staff. -->

2021.09.29

Living creature information

Mizore the Ringed seal seal will be celebrating his half birthday on October 1st. The whole of Kaiyukan and Tempozan Harbor Village will be celebrating!

Ringed seal, the ringed seal born on April 1, 2021, will celebrate his half birthday on October 1. The entire Kaiyukan and Tempozan Harbor Village will celebrate! List of activities ． The day of the half birthday! Instagram Live ． Panel exhibition "A record of the growth of the Ringed seal over the first 100 days of its birth" ． Mizore half birthday commemorative photo exhibition ． Limited edition candy crafts on sale ． Limited edition goods also available! ． "Mizore Online Lecture" to be held! 1. The day of the half birthday! Instagram Live A live broadcast of the feeding process from the "Arctic Region" tank where the ringed Ringed seal live! Date and time: Friday, October 1st, 10:30am Distribution URL https://www.instagram.com/kaiyukan_japan/ ( Kaiyukan official Instagram) *The event may be canceled depending on the condition of the creatures. *We plan to leave a digest version archive. 2. Panel exhibition "Growth record of the Ringed seal for 100 days from birth" We will introduce the growth of Mizore, the first seal to be "fully artificially raised" in Japan, and the efforts of the aquarium keeper . Date: Until April 2022 (planned) Location: Near the "Arctic Region" tank in the Aquarium Fee: Included in the admission fee to Kaiyukan 3. Mizore Half Birthday Commemorative Photo Exhibition Looking back on Mizore's life from birth to the present with numerous photos. Date: October 1st to November 30th, 2021 (planned) Location: Special venue on the 2nd floor of Tempozan Marketplace Place Fee: Free For more information, click here 4. Limited edition candy crafts on sale Original candy crafts will be on sale to commemorate Mizore's half birthday. Date and time: October 1, 2021 to November 30, 2021 (planned) *Held irregularly Location: "Ame- Amenotori " inside Naniwa Shokushinbo Yokocho, 2nd floor of Tempozan Marketplace Place Price: [Finished product] 600 yen / [Demonstration] 800 yen For more information, click here 5. Limited edition goods also available! Limited edition tote bags and drawstring bags are now available for sale at the Kaiyukan official shop and Kaiyukan official shop online! Go to KAIYUKAN official shop online 6. "Mizore Online Lecture" to be held! A live lecture by a aquarium keeper in charge of ringed seals Date and time: October 16th (Sat) and 17th (Sun) 2021, 13:00-14:00 For more information, click here

2021.09.07

news

Kaiyukan welcomes its 80 millionth visitor

On Tuesday, September 7, 2021, we welcomed our 80 millionth visitor. We would like to express our sincere gratitude to all of you who have visited us so far. We will continue to work hard to convey excitement to everyone through the breeding of animals.

2021.08.31

Living creature information

The deep- Kaiyukan shark "Mandarin dogfish" is being reared and exhibited for the first time at Kaiyukan

The deep-sea shark " Mandarin dogfish " is bred and exhibited in the "Japan Deep" tank in the Aquarium . This is the first time that the aquarium has exhibited a Mandarin dogfish. The Mandarin dogfish is a type of deep-sea shark with a distinctive long barbel on its head. Kaiyukan currently breeds and exhibits about 130 sharks of 16 species, including the Mandarin dogfish. Mandarin dogfish Japanese name: Mandarin dogfish English name: Mandarin dogfish Scientific name: Cirrhigaleus barbifer A deep-sea shark that lives at depths of 140 to 650 meters, characterized by long barbels in front of the nostrils and spines on the front edge of the first and second dorsal fins. It is a viviparous shark that gives birth to about 10 young at a time, and they grow to a maximum size of about 1 meter. The deep-sea shark " Mandarin dogfish " is bred and exhibited in the "Japan Deep" tank in the Aquarium . This is the first time that our aquarium has exhibited a Mandarin dogfish. The Mandarin dogfish is a type of deep-sea shark with distinctive long baleen on its head. Kaiyukan currently breeds and exhibits about 130 sharks of 16 species, including the Mandarin dogfish. Mandarin dogfish Japanese name: Mandarin dogfish English name: Mandarin dogfish Scientific name: Cirrhigaleus barbifer A deep-sea shark that lives at depths of 140 to 650 meters, it is characterized by long baleen in front of its nostrils and spines on the front edge of its first and second dorsal fins. It is a viviparous shark that gives birth to about 10 young at a time, and they grow to a maximum size of about 1 meter. -->

2021.08.11

Living creature information

A baby Tufted puffin, an endangered seabird, was born

A Tufted puffin chick was born ~ Parent birds are raising them in the "Aleutian Islands" tank~ A Tufted puffin chick was born on Friday, July 30, 2021. This is the third time that Tufted puffin have been bred at Kaiyukan in the three years since they began breeding. Tufted puffin chicks (photographed on July 30, 2021) Tufted puffin chicks (photographed on August 5, 2021) Eggs were confirmed in the "Aleutian Islands" tank in the Aquarium on June 19. The parent birds continued to incubate the eggs, and the eggs were confirmed to have hatched around 11:00 on July 30. They were also confirmed to have been fed by the parents on the day of hatching. Currently, the chicks are spending time with their parents in the nest, so it is difficult to see them from outside the tank, but they will leave the nest about 50 days after hatching. Over the next two to three years, they will look just like adult birds with black feathers and a vivid, beautiful beak. About the Tufted Tufted puffin chicks Egg laying date: June 19, 2021 Hatching date: July 30, 2021 Size: Weight 55.6g (hatching date), weight 104.2g (as of August 7) ​​Parent birds: Father, nicknamed "Okoppe", mother, nicknamed "Tokoro" (same pair as breeding in 2019 and 2020) About the Tufted puffin name: Tufted Tufted puffin English name: Tufted puffin Scientific name: Fratercula cirrhata A type of seabird classified in the family Aucuridae, order Charadriiformes, with a total length of about 40 cm. A seabird that lives widely in the subarctic zone of the North Pacific Ocean, it has been confirmed to breed only in some parts of Hokkaido in Japan, but the number is small, and it is classified as endangered IA class (※) on the Ministry of the Environment's Red List. They dig burrows in the soil at the top of cliffs on islands and coasts, nest in groups, and females lay one egg at a time. Currently, seven birds, including the chick born this time, are being raised and exhibited at Kaiyukan. *Red List Critically Endangered IA The Red List is a list of wildlife that inhabit or grow in Japan, which is scientifically and objectively evaluated from a biological perspective by a committee of Tufted puffin. Critically Endangered IA refers to species that are at high risk of extinction in the wild in the very near future. (For both, please refer to the Ministry of the Environment website) Tufted puffin chicks have been born ~ Parent birds are raising their young in the "Aleutian Islands" tank~ On Friday, July 30, 2021, a Tufted puffin chick was born. This is the third time that Tufted puffin have been bred at Kaiyukan in the three years since they began breeding. Tufted puffin chicks (photographed July 30, 2021) Tufted puffin chicks (photographed August 5, 2021) Eggs were found in the Aleutian Islands tank in the Aquarium on June 19. The parents continued to incubate the eggs, and the hatching was confirmed at around 11:00 on July 30. The chicks were also confirmed to have been fed by the parents on the day of hatching. The chicks are currently spending time with their parents in the nest, so it is difficult to observe them from outside the tank, but they will leave the nest about 50 days after hatching. Over the next 2-3 years, they will look just like adult birds, with black feathers and a bright, beautiful beak. About the Tufted Tufted puffin chicks Egg laying date: June 19, 2021 Hatching date: July 30, 2021 Size: Weight 55.6g (hatching date), weight 104.2g (as of August 7) ​​Parent birds: Father, nicknamed "Okoppe", mother, nicknamed "Tokoro" (same pair as breeding in 2019 and 2020) About the Tufted puffin name: Tufted Tufted puffin English name: Tufted puffin Scientific name: Fratercula cirrhata A type of seabird classified in the family Aucuridae, order Charadriiformes, with a total length of about 40 cm. A seabird that lives widely in the subarctic zone of the North Pacific Ocean, it has been confirmed to breed only in some parts of Hokkaido in Japan, but the number is small, and it is classified as endangered IA class (※) on the Ministry of the Environment's Red List. They dig burrows in the soil on islands or at the top of cliffs on the coast, nest in groups, and females lay one egg at a time. Currently, seven birds, including the chick that was born this time, are being raised and exhibited at Kaiyukan. *Red List Critically Endangered Category IA The Red List is "a list of wildlife that inhabit or grow in Japan, which is compiled by a committee of experts who scientifically and objectively evaluate the extinction risk of each species from a biological perspective." Critically Endangered Category IA refers to species that are "at high risk of extinction in the wild in the very near future." (For both, see the Ministry of the Environment website) -->

2021.08.11

Living creature information

The debut date for the Ringed seal"Mizore", born on April 1st, in the exhibition tank has been decided.

Mizore, a Ringed seal born on April 1, 2021, will move to the tank "Arctic Region" Aquarium on August 18 and will be open to the public. Mizore is the first ringed Ringed seal to breed at Kaiyukan on April 1, 2021. Immediately after birth, he was found to have symptoms such as hypothermia, so aquarium keeper cared for him around the clock, and he was then raised artificially, a first in Japan. His weight, which was 2.44 kg immediately after birth, exceeded 19.00 kg by August 9, and he has grown into a round body shape, one of the characteristics of Ringed seal. Ringed seal"Mizore" (photographed on August 10, 2021) Training in the "Arctic Region" tank(photographed on August 10, 2021) [Comment from the aquarium keeper] "Mizore" is the first ringed seal in Japan, and the first at Kaiyukan, to be fully Ringed seal raised, so we aquarium keeper had a hard time every day trying and failing without any data, but we are very happy to see how much he has grown. This marks the end of his life in the back yard, and from now on he will live with the other Ringed seal in the "Arctic Region" tank . We hope you will continue to watch over Mizore's growth with us. Major efforts before and after the birth of Ringed seal "Mizore" (2021) January 5th: Confirmation that Ringed seal "Arale", who is being kept and exhibited in the "Arctic Region " tank , is pregnant February 17th: Cover the acrylic panel of the "Arctic Region" tank in preparation for birth April 1st: Mizore is born at 2:58 am. As she showed symptoms such as hypothermia, care was started in the back yard April 2nd: Although care helped to improve her symptoms, it took time, so full artificial feeding was started May 15th: The white fur that had covered her body since birth falls out (molting) May 19th: Main food switched from milk to fish (weaning) July 13th: Able to climb out of the pool onto land, and habituation training began in the "Arctic Region" tank August 1st・The nickname was decided by public vote. ・A panel exhibition titled "The Growth Record of the Ringed seal for 100 Days from Birth" will be held, documenting Mizore's growth and artificial rearing. Scheduled to move to the "Arctic Region" tank on August 18th. Mizore, a Ringed seal born on April 1, 2021, will move to the "Arctic Region" tank in the aquarium on August 18th and be open to the public. Mizore is the first ringed Ringed seal to breed at Kaiyukan on April 1, 2021. Immediately after birth, he was found to have symptoms such as hypothermia, so the aquarium keeper cared for him around the clock, and he was then reared by artificial rearing, a first in Japan. His weight, which was 2.44 kg immediately after birth, exceeded 19.00 kg on August 9th, and he has grown into a round body shape, one of the characteristics of Ringed seal. Ringed seal"Mizore" (photographed on August 10, 2021) Training in the "Arctic Region" tank(photographed on August 10, 2021) [Comment from the aquarium keeper] "Mizore" is the first ringed seal in Japan, and the first at Kaiyukan, to be fully Ringed seal raised, so we aquarium keeper had a hard time every day trying and failing without any data, but we are very happy to see how much he has grown. This marks the end of his life in the back yard, and from now on he will live with the other Ringed seal in the "Arctic Region" tank . We hope you will continue to watch over Mizore's growth with us. Major efforts before and after the birth of Ringed seal "Mizore" (2021) January 5th: Confirmation that Ringed seal "Arale", who is being kept and exhibited in the "Arctic Region " tank , is pregnant February 17th: Cover the acrylic panel of the "Arctic Region" tank in preparation for birth April 1st: Mizore is born at 2:58 am. As she showed symptoms such as hypothermia, care was started in the back yard April 2nd: Although care helped to improve her symptoms, it took time, so full artificial feeding was started May 15th: The white fur that had covered her body since birth falls out (molting) May 19th: Main food switched from milk to fish (weaning) July 13th: Able to climb out of the pool onto land, and habituation training began in the "Arctic Region" tank August 1st・The nickname "Mizore" was decided by public vote. ・A panel exhibition "The growth record of the Ringed seal for 100 days from birth" will be held, documenting Mizore's growth and artificial rearing. On August 18, he will be moved to the "Arctic Region" tank (planned) -->