A tuna is a saltwater fish that belongs to the tribe Thunnini, a subgrouping of the Scombridae (mackerel) family. The Thunnini comprise 15 species across five genera, the sizes of which vary greatly, ranging from the bullet tuna up to the Atlantic bluefin tuna, which averages 2 m (6.6 ft) and is believed to live up to 50 years.
Cyprinus is the genus of typical carps in family Cyprinidae. Most species in the genus are of East Asia origin with only the common carp in Western Asia and Europe; this invasive species has also been introduced to many other regions around the world. Cyprinus are closely related to some more barb-like genera, such as Cyclocheilichthys and Barbonymus (tinfoils). The crucian carps (Carassius) of western Eurasia, which include the goldfish, are apparently not as closely related.
Dianchi Lake, also known as Lake Dian and Kunming Lake, is a large lake located on the Yunnan-Guizhou Plateau close to Kunming, Yunnan, China. Its nickname is the "Sparkling Pearl Embedded in a Highland" and it was the model for the Kunming Lake in the Summer Palace in Beijing. Its name is the source of Yunnan's Chinese abbreviation 滇.
The Arctic lamprey, also known as the Japanese river lamprey or Japanese lampern, is a species of lamprey, a jawless fish in the order Petromyzontiformes. It inhabits coastal freshwater habitat types in the Arctic. Some populations are anadromous, spending part of their lives in the ocean. It is the most common and widespread lamprey in the Arctic region.
The velvet belly lanternshark is a species of dogfish shark in the family Etmopteridae. One of the most common deepwater sharks in the northeastern Atlantic Ocean, the velvet belly is found from Iceland and Norway to Gabon and South Africa at a depth of 20–2,490 m (66–8,169 ft). A small shark generally no more than 45 cm (18 in) long, the velvet belly is so named because its black underside is abruptly distinct from the brown coloration on the rest of its body. The body of this species is fairly stout, with a moderately long snout and tail, and very small gill slits. Like other lanternsharks, the velvet belly is bioluminescent, with light-emitting photophores forming a species-specific pattern over its flanks and abdomen. The ventral photophores are thought to function in counter-illumination, which camouflages the shark against predators and prey. The bioluminescent flank markings may play a role in intraspecific communication.
The relict dace is a cyprinid fish of the Great Basin of western North America. It is the sole member of its genus.
Anabarilius polylepis is a species of ray-finned fish in the family Cyprinidae, that is endemic to Yunnan, China. It only occurs in Dian Lake and Songhuaba reservoir in Kunming. It was once a major commercial fish species, but it has not been confirmed in the lake since the 1970s. Its decline is attributed to many factors: introduced fish species, decreasing water quality, the loss of macrophytes, over-fishing, and the loss of breeding sites due to siltation and blocked access.
Pelecus cultratus, commonly known as the ziege, sichel, sabre carp or sabrefish, is a cyprinid fish species from Eastern Europe and adjacent Asian regions, the only one in its genus, inhabiting the lower reaches of rivers and brackish waters in the eastern Baltic Sea, Black Sea, Caspian Sea and Aral Sea basins. The ziege having no major threats, the IUCN lists it as being of Least Concern.
Tor yunnanensis is a species of ray-finned fish in the family Cyprinidae. It is found only in Fuxian Lake in Yunnan, China. It has been severely impacted by the introduced species of fish, pollution, and overfishing, and not seen after the 1990s.
The bayad, is a species of bagrid catfish from Africa.
The zebra mbuna is a species of cichlid endemic to Lake Malawi in Africa. This species can reach a length of 11.3 cm (4.4 in). It feeds on aufwuchs, a surface layer of mostly algal material that grows on rocks. This cichlid is a mouthbrooder and the female broods the eggs in her mouth for about three weeks. This fish can sometimes be found in the aquarium trade.
The fourhorn sculpin is a species of ray-finned fish belonging to the family Cottidae, the typical sculpins. This species has a Holarctic distribution and can be found in marine, brackish and fresh waters.
Fuxian Lake stretches out through Chengjiang, Jiangchuan and Huaning Counties in Yunnan Province, spanning an area of 212 square kilometers. The lake is ranked third-largest in Yunnan, after Dian Lake and Erhai Lake. The deepest lake in Yunnan, it is 155 meters deep at its greatest depth. It is also the third-deepest fresh water lake in China, after Tianchi and Kanas Lake.
Schizothorax yunnanensis is a species of ray-finned fish in the genus Schizothorax which is found in Yunnan.
The redeye barb or Beira barb, is a widespread African species of freshwater cyprinid fish which is found from Uganda south to the Limpopo River and Incomati River systems in South Africa.
Cyprinus yunnanensis is a critically endangered species of cyprinid fish in the genus Cyprinus from Qilu Lake in Yunnan, China. Despite surveys of the lake it has not been seen since the 1970s and it is possibly extinct. It reaches up to about 20 cm (8 in) in length.
Xenocypris is a genus of cyprinid fish found in eastern Asia. There are currently seven species in this genus, one, X. yushensis, being known only from fossils, and one, X. yunnanensis, which is critically endangered or recently extinct.
Salvelinus inframundus, also known as Orkney charr is a cold-water fish in the family Salmonidae which is endemic to Scotland.
Salvelinus killinensis, also known as Haddy charr is a variety of charr found in certain lakes in Scotland.
Haplochromis vonlinnei is a species of cichlid endemic to Lake Victoria. It is greyish in color with a distinct mid-lateral band, and a rather slender shape. It feeds mainly on smaller fish. This species can reach a length of 15.9 centimetres (6.3 in) SL. The population of the species has declined due to the introduction of the Nile perch in the 1950s. It has not been recorded since 1980 and the IUCN lists it as "Critically Endangered" and considers it may already be extinct. This fish is named in honour of the Swedish naturalist, Carl Linnaeus.
