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An underwater world of translucent blue water spreading over the white seabed.  The Sunshine Lagoon represents an underwater oasis illuminated by natural light. The layout of this tank, developed by our Aqua Staff, reflects the image of a shallow coral reef they imagined. The main features of this tank are various schools of fish dynamically swimming and gracefully swinging large rays.

Double-lined fusilier

Range: Indian Ocean, West Pacific Ocean

Double-lined fusiliers can be easily identified from the black tips on caudal fin. They live in large schools and feed on plankton. They are Okinawa’s prefectural fish and locally known as Gurukun.

 

Claspers and Gonopodia

You can tell a male shark/ray from a female by its appearance. A male shark/ray has a pair of appendages (copulatory organ) called “clasper” near its pelvic fins. Some freshwater fish also have this type of copulatory organ. Popular tropical fish like Guppies and Platies are also ovoviviparous. While the shark/ray’s copulatory organ is a pair of appendages located near the pelvic fins, the copulatory organ of Guppies and Platies – called “gonopodium” – is a single, modified anal fin.

Clasper of ｙoung brownbanded bamboo shark


Gonopodium of four-eyed fish


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