The Roanoke logperch is a species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is found in the Roanoke and Chowan drainages in Virginia and North Carolina in the United States. They inhabit low and moderate-gradient streams and rivers in warm, clear water in mostly unsilted gravel and rubble in runs, pools, and riffles. They are primarily insectivorous. This fish is a federally listed endangered species.
The Kessler's gudgeon is a European species of freshwater fish in the family Cyprinidae. It is found in the Danube and Vistula drainage basins, including parts of Poland, Austria, the Czech Republic, Ukraine, Bulgaria, Romania, Moldova, Hungary, Croatia, Bosnia and Herzegovina, Serbia, Montenegro, Slovakia, and Slovenia. It is a small fish of no economic or sporting importance. It was at one time classified as Gobio kessleri.
The stone loach is a European species of fresh water ray-finned fish in the family Nemacheilidae. It is one of nineteen species in the genus Barbatula. Stone loaches live amongst the gravel and stones of fast flowing water where they can search for food. The most distinctive feature of this small fish is the presence of barbels around the bottom jaw, which they use to detect their invertebrate prey. The body is a mixture of brown, green and yellow.
The Russian sturgeon, also known as the diamond sturgeon or Danube sturgeon, is a species of fish in the family Acipenseridae. It is found in Azerbaijan, Bulgaria, Georgia, Iran, Kazakhstan, Romania, Russia, Turkey, Turkmenistan, and Ukraine. It is also found in the Caspian Sea. This fish can grow up to about 235 cm (93 in) and weigh 115 kg (254 lb). Russian sturgeon mature and reproduce slowly, making them highly vulnerable to fishing. It is distinguished from other Acipenser species by its short snout with a rounded tip as well as its lower lip which is interrupted at its center.
The channel darter is a species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is native to North America where it typically occurs in the sandy or gravelly shallows of lakes and in small and medium-sized rivers in riffles over sand, gravel or rock bottoms. It is a small fish ranging from 34 to 72 mm in length, olive brown with darker speckles and sometimes with a dark spot below the eye and dark blotches along the flank. It feeds mostly on insect larvae and other small invertebrates and breeds in small streams. This species is listed as threatened by the Canadian Species at Risk Act (SARA) but overall it has a wide range and numerous sub-populations and the International Union for Conservation of Nature has rated it as a "least concern species".
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.
Psilorhynchus is a genus of fish in the family Psilorhynchidae native to South Asia. This genus is the only member of its family. The members of Psilorhynchus are small benthic fishes which occur in rivers and streams with fast to swift currents, hence they are often referred to a torrent minnows. They are distributed in southern Asia, in the Indo-Burma region and the Western Ghats. The genus is the sister group to the family Cyprinidae, and with that family the Psilorhynchidae makes up the superfamily Cyprinoidea, with all the other cypriniform families in the superfamily Cobitoidea.
Psilorhynchus microphthalmus is a freshwater ray-finned fish, a torrent minnow. It is restricted to the Chapki Stream in the Chindwin basin of Manipur, India. It is found in flowing water with a rock substrate. This species is threatened from the effects of the use of poisons and explosives for fishing and the sedimentation of its habitat caused by deforestation and slash and burn agriculture.
Psilorhynchus breviminor is a freshwater ray-finned fish, a torrent minnow, in the genus Psilorhynchus. It is only known from the Ma Gawe River, close to the Kalaw-Thazi highway, near the state border between Mandalay and Shan near the village of Nampantet in Myanmar. It was collected from algal mats, where it seemed to be either resting or feedingin a cool, fast-flowing stream which had a bed made up of sand and gravel and a depth of 30 cm.
Psilorhynchus pseudecheneis, also known as the Nepalese minnow or stone carp, is a species of freshwater ray-finned fish, a torrent minnow. it inhabits torrential streams and it is adapted to such a habitat by possessing am increased count of simple rays in the pectoral fins and in having transverse folds in the skin on its underside which allow it to cling to rocks in the swift current. It is found in eastern Nepal and has recently been recorded from India, it is a migratory species. The specific name pseudecheneis is a compound of the Greek pseudo meaning "false" and echeneis which means a "sucker fish", probably a reference to the fact that the torrent minnows use their pectoral fin rays to adhere to the substrate rather than having a suckermouth.
Psilorhynchus sucatio, the river stone carp or sucatio minnow, is freshwater ray-finned fish a species of torrent minnow. The specific name is a latinization of one of the local names for this species, sukati. It is a widely distributed species and is found in Nepal and Bangladesh as well as the Indian states of Arunachal Pradesh, Assam, Bihar, Manipur, Meghalaya, Nagaland, Uttar Pradesh and West Bengal. P. sucatio occurs in water with a fast current preferring the edges of sandy streams. In the lowlands it is abundant near emergent or overhanging vegetation, it is an altitudinal migrant. At a maximum length of 5 cm it is too small to be of any interest to fisheries but it is collected for the aquarium trade. It is the type species of the genus Psilorhynchus.
Psilorhynchus robustus is an Asian freshwater ray-finned fish of the torrent minnow genus Psilorhynchus. It is benthopelagic and found in the headwaters of the Ataran River basin in Burma (Myanmar).
Psilorhynchus rahmani is a freshwater ray-finned fish a torrent minnow which is found in a small, well oxygenated hill stream near Chittagong University in Hathazari Upazila in the Chittagong Division of Bangladesh. The specific name honours A. K. Ataur Rahman of the Department of Fisheries in Dhaka, for his contribution to the ichthyology of Bangladesh.
Schistura cataracta is a species of ray-finned fish in the stone loach genus Schistura. It occurs in the Nam Theun and Nam Gnouang, in the Mekong basin of Laos. It prefers stretches of rivers with fast current and a stony or rocky substrate, but it does occasionally occur over gravel or sandy substrates. It can also be found in reservoirs, albeit at low densities and dams are the biggest threat to this species.
Schistura nagaensis is a species of ray-finned fish, a stone loach, in the genus Schistura. It is a benthic species which is found in hill streams with a fast currents over a gravel substrate. It occurs in the Tizu River in the Chindwin basin of Manipur and Nagaland, it may also occur in the Tizu River in Myanmar. Slash and burn cultivation within the drainage of the Tizu has contributed to a decline in quality of hill stream habitats and resultant threats to fish populations which are also threatened by destructive fishing techniques including the use of explosives and poisons.
Schistura namboensis is a species of ray-finned fish, a stone loach, in the genus Schistura. It normally occurs in the rapids and riffles of medium-sized rivers and streams but it can also be found in reaches with a slow current and sandy substrate. This species appears to have some resistance to organic pollution and occurs in streams flowing through settlements, and is often the last fish species to remain in such streams. It is found in the coastal drainages in southern and central Vietnam and also in Laos in some rivers which rise there before flowing into Vietnam.
The ironcolor shiner is a species of freshwater ray-finned fish from the family Cyprinidae, the minnows and carps. It is a widespread species in streams and rivers in eastern North America.
Gobio gobio, or the gudgeon, is a species of fish in the family Cyprinidae. This small fish is widely distributed in fresh-water streams and lakes across central and temperate Eurasia.
Psilorhynchus nudithoracicus also known as the rainbow minnow is a freshwater ray-finned fish, a torrent minnow, which is found in the drainage systems of the Ganges and the Brahmaputra in India, Nepal and Bangladesh, as well as the Meghna River and Surma River drainage basins in India and Bangladesh. the habitat of this species is shallow running streams with sandy bottoms, usually with some pebbles laying on the sand.
The peppered chub, also known as the Arkansas River speckled chub, is a freshwater ray-finned fish in the family Cyprinidae, the carps and minnows. It historically occurred throughout the Arkansas River drainage, but today is found in the Ninnescah River, a small portion of the Arkansas River in Kansas and the South Canadian River between Ute and Meredith reservoirs in New Mexico and Texas. Its preferred habitat is shallow channels of large, permanently flowing, sandy streams, and prefers currents over a substrate of clean, fine sand.
