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Dabry's sturgeon (Acipenser dabryanus), also known as the Yangtze sturgeon, Changjiang sturgeon and river sturgeon, is a species of fish in the sturgeon family, Acipenseridae. [5] It is endemic to China and today restricted to the Yangtze River basin, [ 1 ] but was also recorded from the Yellow River basin in the past.
The Yangtze flows through a wide array of ecosystems and is habitat to several endemic and threatened species, including the Chinese alligator, the narrow-ridged finless porpoise, and also was the home of the now extinct Yangtze river dolphin (or baiji) and Chinese paddlefish, as well as the Yangtze sturgeon, which is extinct in the wild.
The Yangtze River Plain stretches 1,000 km from the Three Gorges to the sea. The terrain is mostly flat or low alluvial hills, with numerous shallow lakes. Large lakes include Poyang Lake, the largest freshwater lake in China, and Dongting Lake which was formerly the largest but has seen significant conversion to farmland over the years.
A 2024 genetic study confirmed that in spite of the recent taxonomic changes within the genus, the Chinese Andrias species introduced to Japan and hybridizing with A. japonicus is the "true" A. davidianus (the Yangtze River clade, or lineage B), although at least one genetically pure individual of the captive-only lineage U1 was also detected ...
Now, that number is down to several hundred due to the threats to its habitat, such as pollution [14] and other human action. The channel for adult fish migrating to traditional spawning sites such as the Jinsha River in the upstream of Yangtze River was blocked after the construction of the Gezhouba Dam hydroelectric power project in the early ...
The deterioration of the Yangtze River had to be reversed to preserve the habitat. The ex-situ projects aimed to raise a large enough population over time so that some, if not all, of the dolphins could be returned to the Yangtze, so the habitat within the river had to be maintained anyway.
Oncomelania hupensis nosophora. Oncomelania hupensis chiui (Habe & Miyazaki, 1962)—in Taiwan [3]; Oncomelania hupensis hupensis (Gredler, 1881)—in China. [3] It is the most widely distributed subspecies of Oncomelania hupensis and lives primarily at low altitude but a few populations live in hilly areas in the drainage area of the Yangtze River in mainland China.
The Yangtze giant softshell turtle (Rafetus swinhoei), also commonly known as the Red River giant softshell turtle, the Shanghai softshell turtle, the speckled softshell turtle, and Swinhoe's softshell turtle, is a critically endangered species of turtle in the family Trionychidae. It is regarded as one of the largest living freshwater turtle ...