Herring are forage fish, mostly belonging to the family Clupeidae.
The Denison barb, Denison's barb, Miss Kerala, red-line torpedo barb, or roseline shark is an endangered species of cyprinid fish endemic to the fast-flowing hill streams and rivers of the Western Ghats in India. It is commonly seen in the aquarium trade; pet collection caused it to become endangered and is its single major threat.
Ayu or sweetfish, Plecoglossus altivelis, is a species of fish. It is the only species in the genus Plecoglossus and family Plecoglossidae. It is a relative of the smelts and other fish in the order Osmeriformes.
The Oregon chub is a species of ray-finned fish in the family Cyprinidae. It is endemic to Oregon in the United States. From 1993 to 2014 it was a federally listed threatened species.
The African butter catfish is a species of fish in the family Schilbeidae. It is native to many major river systems in Africa. Other common names for the fish include butter fish, butter barbel, African glass catfish, lubangu, mystus catfish, silver barbel, and silver catfish. It was originally described as Silurus mystus by Carl Linnaeus in 1758.
The Caspian lamprey, Caspiomyzon wagneri, is a species of lamprey native to the Caspian Sea, and a member of the Petromyzontidae family. Eudontomyzon hellenicus and E. graecus also possibly belong in this genus. This species is a non-parasitic lamprey that feeds on animal carcasses.
Psilorhynchus balitora or Balitora minnow is a species of torrent minnow found in South Asia. It is found in the drainage basins of the Ganges and the Brahmaputra in eastern Nepal, northeast Bangladesh and adjacent West Bengal and northwest Assam. It can be found in hill streams and in rapids with substrates consisting of pebbles or sand, preferring hard substrates. It is exported as an aquarium fish.
Balitora annamitica is a species of hill-stream loach from the Mekong River Basin in Cambodia, Thailand, and Laos, and possibly Vietnam. It might be more than one species.
Slender stone loach is a species of hill-stream loach. It is endemic to the Western Ghats, India, and known from Kerala and Karnataka, and possibly from Maharashtra. It inhabits torrential streams and can be found attached to bedrock, cobbles, and boulders.
Balitora kwangsiensis is a species of hillstream loach found in Southeast Asia. It inhabits rapid-flowing rivers and grows to a total length of 12 cm (4.7 in).
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.
Macrobrachium carcinus is a species of freshwater shrimp known as the big claw river shrimp. It is native to streams, rivers and creeks from Florida to southern Brazil. It is the largest known species of Neotropical freshwater prawn, growing up to 30 centimetres (12 in) long and weighing as much as 850 grams (30 oz), although even larger specimens have been reported. It is an important species for commercial fishing in the Sao Francisco area, where it is known by the local name of pitu. M. carcinus is omnivorous, with a diet consisting of molluscs, small fish, algae, leaf litter and insects.
Osteochilus longidorsalis is a species of fish in the family Cyprinidae. Its common names are hiffin carp and long finned barb.
The black paradisefish is a species of gourami endemic to Vietnam. It is an inhabitant of hill streams, lowland streams, and irrigation ditches in farmland. This species grows to a standard length of 5.8 cm (2.3 in). It is found in the Thu Bon River and Perfume River; its habitat is hill streams, along backwaters of large rivers and small stream and irrigation channels on farmland. Aside from possibly being used as an ornamental fish, nothing else is known about the species.
Hucho bleekeri, the Sichuan taimen, is a species of freshwater fish in the salmon family (Salmonidae), endemic to the Yangtze basin in China. Their typical habitat includes mountain streams and small rivers, typically being found in the catchment areas of the Dadu River in Sichuan and Qinghai Provinces, as well as the Hanjiang River. This particular fish population is largely threatened by habitat loss and illegal fishing, resulting in a "critically endangered" conservation status from the International Union for Conservation of Nature.
Akysis bilustris is a species of catfish belonging to the family Akysidae, known only from two geographically proximate localities in the Xe Kong drainage, a major subdrainage of the Mekong River, in Laos and Cambodia. This species grows to a length of 2.57 centimetres (1.01 in) SL.
Osteochilus lini is a freshwater fish from Southeast Asia. It is found in the lower Mekong River basin, the Chao Phraya River basin, and some coastal drainages; it occurs in Laos, Vietnam, Cambodia, and Thailand. Its common name is dusky face carp.
Osteochilus vittatus is a species of cyprinid fish from Southeast Asia. Its common name is bonylip barb, hard-lipped barb, or silver sharkminnow. It grows to 32 cm (13 in) SL.
Osteochilus brachynotopteroides is a fresh water fish in the family Cyprinidae from Southeast Asia. It occurs in the lower Mekong Basin and is present in Laos, Thailand, and Vietnam; it is expected to occur in Cambodia but has not been found there.
Nandus oxyrhynchus is a species of ray-finned fish from the family Nandidae. It is native to the Mekong River Basin, Chao Phraya River Basin, and Mae Klong River Basin. It occurs in slow flowing and still waters in streams, rivers, pond and lakes. It is a carnivorous fish preying on other fishes and larger invertebrates.
