HONG KONG, June 17 (Xinhua) -- The Hong Kong Ocean Park's new attraction -- "Chinese Sturgeon Aquarium -- Yangtze Exploration" opened here Thursday, showcasing Chinese Sturgeons and a series of aquatic wildlife species.

The new spot, a freshwater exhibit converted from the park's existing "Chinese Sturgeon Aquarium", features 10 Chinese Sturgeons and aquatic wildlife species of the Yangtze River including Chinese Sucker, Largemouth Bronze Gudgeon, Chinese Spined Barb and some other ones.

The 10 sturgeons, coming from the Yangtze River Fisheries Research Institute of the Chinese Academy of Fisheries Sciences in Xiamen, Fujian Province, aged from two to 10 years old and measured 0.8 to two meters long. Three of them had been showcased in Hong Kong two years ago.

The park had successively presented a total of 10 Chinese Sturgeons by the mainland in 2008. The species were placed in the "Chinese Sturgeon Aquarium" and was open to the public in August, 2008.

Three sturgeons died later on and the remaining ones were sent to institute in Xiamen. One died from being attacked by other species, while two were suspected to be unable to adapt to the saltwater habitat in the old aquarium.