"World's first" shark species "Sand Shark" successfully breeds for three consecutive seasons
"Aqua World Ibaraki Oarai Aquarium, which has the largest number of shark species in Japan, will open a shark species aquarium on March 2025, 3.A juvenile "Sand Shark" is born
Since May 2023, 5,Third successful breeding.
The parent individuals are a pair of "No. 2021" (female) and "No. 2023" (male), which successfully bred for the first time in Japan in 3 and the second time in Japan in 4.
"Sand Shark"Since they only breed once every two years, this breeding season marks their third consecutive successful breeding season.By the same individualThis is the world's first feat of three consecutive pregnancies and reproduction..
This world's first "three consecutive breeding successes" is proof that many years of research have made it possible to create an environment suitable for breeding "Sand Sharks," and we believe that this will also make a significant contribution to the conservation of this species, which is classified as endangered. The newly born juvenile fish, "No. 11," is female, and we are currently checking its health in an aquarium in the back yard. If it is expected to grow steadily in the future, we plan to exhibit it in an aquarium for visitors.
The timing of the public exhibition of the juvenile grey nurse shark (individual number No. 11) has not yet been decided, but we will make an announcement once it has been decided.
"Newborn sand tiger shark juvenile"
Born on Saturday, March 2025, 3
Individual number: No.11
Gender: Female
Total length: 98.0cm
Weight: XNUM X kg
Release date: TBA
Parent individualabout
The parent individuals are the same pair that successfully bred in 2021 and 2023.
This is the world's first successful case of three successive breedings using the same parent individuals.
●Mother shark…Individual number: No.3♀
Brought into the museum in June 1999 (6 years and 25 months in captivity) Total length: approx. 10 cm
●Father shark…Individual number: No.4♂
Brought into the museum in June 1999 (6 years and 25 months in captivity) Total length: approx. 10 cm
Sand tiger shark
Scientific name:Carcharias taurus
English name: Sand tiger shark
Body length: 3.2m
Habitat: Widely distributed in temperate to tropical regions of India, Pacific Ocean, Atlantic Ocean, and Mediterranean Sea.