The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological species. A series of Regional Red Lists, which assess the risk of extinction to species within a political management unit, are also produced by countries and organizations.
Paddlefish are a family of ray-finned fish belonging to order Acipenseriformes, and one of two living groups of the order alongside sturgeons (Acipenseridae). They are distinguished from other fish by their elongated rostra, which are thought to enhance electroreception to detect prey. Paddlefish have been referred to as "primitive fish" because the Acipenseriformes are among the earliest diverging lineages of ray-finned fish, having diverged from all other living groups over 300 million years ago. Paddlefish are almost exclusively North American and Chinese, both extant and in the fossil record.
The Australian king parrot is a species of parrot endemic to eastern Australia ranging from Cooktown in Queensland to Port Campbell in Victoria. Found in humid and heavily forested upland regions of the eastern portion of the continent, including eucalyptus wooded areas in and directly adjacent to subtropical and temperate rainforest. They feed on fruits and seeds gathered from trees or on the ground.
The shovelnose sturgeon is the smallest species of freshwater sturgeon native to North America. It is often called hackleback, sand sturgeon, or switchtail. Switchtail refers to the long filament found on the upper lobe of the caudal fin. Shovelnose sturgeon are the most abundant sturgeon found in the Missouri River and Mississippi River systems, and were formerly a commercially fished sturgeon in the United States of America. In 2010, they were listed as threatened under the U.S. Endangered Species Act due to their resemblance to the endangered pallid sturgeon, with which shovelnose sturgeon are sympatric.
The red-winged parrot is a parrot native to Australia and New Guinea. It is found in grasslands, savannah, farmland, and woodland.
The starry smooth-hound is a houndshark of the family Triakidae. It is found on the continental shelves of the northeast Atlantic, between latitudes 61 and 16° N, from the surface to a depth of 200 m (660 ft).
The Persian sturgeon is a species of fish in the family Acipenseridae. It is found in the Caspian Sea and to a lesser extent the Black Sea and ascends certain rivers to spawn, mainly the Volga, Kura, Araks and Ural Rivers. It is heavily fished for its flesh and its roe and is limited in its up-river migrations by damming of the rivers. Young fish feed on small invertebrates, graduating to larger prey such as crabs and fish as they grow. The threats faced by this fish include excessive fishing with the removal of immature fish before they have bred, damming of the rivers, loss of spawning areas and water pollution. The International Union for Conservation of Nature has listed the fish as critically endangered and has suggested that the increased provision of hatcheries could be of benefit.
Chanodichthys is a genus of cyprinid freshwater fish, consisting of five species from eastern Asia. The name is derived from the Greek word chanos, meaning "abyss, mouth opened, inmensity", and the Greek word ichthys, meaning "fish". Chanodichthys is closely related to Culter and some species have been moved between these genera.
Iberocypris palaciosi or Squalius palaciosi is a species of cyprinid fish. It is endemic to Spain where it is known with the name bogardilla.
Oreochromis esculentus, the Singida tilapia or Graham's tilapia, is a species of cichlid endemic to the Lake Victoria basin, including some of its satellite lakes such as Kyoga, in Tanzania, Uganda, and Kenya. Its common name refers to Lake Singida, but this population is the result of an introduction that happened in the 1950s. This fish is highly valued by local fishermen, who know it as ngege.
Scaphirhynchus is a genus of sturgeons native to North America. All species in this genus are considered to be threatened with extinction or worse. As of 2023, the pallid sturgeon and the Alabama sturgeon are critically endangered according to the International Union for Conservation of Nature.
Chanodichthys dabryi, the humpback or lake skygazer, is a species of ray-finned fish in the genus Chanodichthys. This freshwater cyprinid is found in China and Russia where it ranges from the Amur River to the Yangtze. It is fished, but remains common. As presently defined, it is likely species complex. It reaches 42 cm in length and 700 g (1.5 lb) in weight.
Culter flavipinnis is a species of cyprinid fish that is endemic to Vietnam.
Chanodichthys oxycephalus is a species of ray-finned fish in the genus Chanodichthys from the Yangtze River.
The Mongolian redfin is a species of ray-finned fish in the genus Chanodichthys. This East Asian freshwater cyprinid is found in China, Russia and Mongolia where it ranges from the Amur River south to the Yangtze and inland to Lake Buir and Kherlen River. There are also records from the Red River in Vietnam that probably are this species. It reaches 1 m in length and 4 kg (8.8 lb) in weight.
The red-backed paradise fish is a species of gourami endemic to streams in Vietnam. This species grows to a standard length of 6.5 cm (2.6 in), and it is sometimes seen in the aquarium trade.
Macropodus is a genus of small to medium-sized labyrinth fish native to freshwater habitats in eastern Asia. Most species are restricted to southern China and Vietnam, but M. opercularis occurs as far north as the Yangtze basin, and M. ocellatus occurs north to the Amur River, as well as in Japan and Korea. In China, they are often used for fights, so they are named Chinese bettas because of their similarity to the genus Betta. A few species in the genus are regularly seen in the aquarium trade, and M. opercularis has been introduced to regions far outside its native range.
Lutjanus erythropterus, the crimson snapper, crimson seaperch, high-brow sea-perch, Longman's sea perch, red bream, saddle-tailed perch, small-mouth nannygai or smallmouth sea perch is a species of marine ray-finned fish, a snapper belonging to the family Lutjanidae. It is found in the Pacific and Indian Oceans.
Lutjanus malabaricus, the Malabar blood snapper, saddletail snapper, large-mouthed nannygai, large-mouthed sea-perch, Malabar snapper, nannygai, red bass, red bream, red emperor, red Jew, red snapper, saddletail seaperch, scarlet emperor or scarlet sea-perch, is a species of marine ray-finned fish, a snapper belonging to the family Lutjanidae. It is native to the Indian Ocean and the western Pacific, where it is found east to Fiji and Japan.
