The Sacramento blackfish is a species of freshwater fish in central California. A cyprinid, the blackfish is the sole member of its genus.
Jenynsia is a genus of freshwater fishes in the family Anablepidae. Like Anableps species, they are onesided livebearers: some sources indicate that they only mate on one side, right-"handed" males with left-"handed" females and vice versa. However, other sources dispute this. These South American fish are viviparous.
The Northern pikeminnow, Columbia River dace or colloquially Squawfish is a large member of the minnow family, Leuciscidae. This predatory freshwater fish is native to northwestern North America, ranging from the Nass River basin to the Columbia River basin. A good deal of concern has been expressed regarding the impact northern pikeminnow populations may have on salmon in Columbia and Snake River impoundments.
Pikeminnows, formerly squawfish, are cyprinid fish of the genus Ptychocheilus consisting of four species native to western North America. Voracious predators, they are considered an "undesirable" species in many waters, largely due to the species' perceived tendency to prey upon small trout and salmon. First known in western science by the common name Columbia River dace, the four species all became lumped under the name "squawfish". In 1999, the American Fisheries Society adopted "pikeminnow" as the name it recommends, because Native Americans consider "squawfish" offensive.
Mucophagy is defined as the act of feeding on mucus of fishes or invertebrates. Also, it may refer to consumption of mucus or dried mucus in primates.
The Colorado pikeminnow is the largest cyprinid fish of North America and one of the largest in the world, with reports of individuals up to 6 ft (1.8 m) long and weighing over 100 pounds (45 kg). Native to the Colorado River Basin of the southwestern United States and adjacent Mexico, it was formerly an important food fish for both Native Americans and European settlers. Once abundant and widespread in the basin, its numbers have declined to the point where it has been extirpated from the Mexican part of its range and was listed as endangered in the US part in 1967, a fate shared by the three other large Colorado Basin endemic fish species: bonytail chub, humpback chub, and razorback sucker. The Colorado pikeminnow is currently listed as vulnerable by the IUCN, while its NatureServe conservation status is "critically imperiled".
The Durango shiner is an extinct species of freshwater fish of the family Cyprinidae. It was found only in Mexico. The Durango shiner was native to the Rio Tunal, which forms the headwaters of the San Pedro Mezquital River, a Pacific slope river rising near Durango City, Durango, Mexico. It was taken there only in 1951 and 1961. Its closest relatives were the yellow shiner and the Ameca shiner.
The Atlantic needlefish is a common demersal needlefish species common in marinas and other areas with minimal currents. Body very elongated, rounded; extremely elongated jaws form a long beak, with numerous needle-like teeth; rear of the top jaw-bone by being exposed when the mouth is closed. It has no gill rakers, the fins without spines; low lobes at the front of the dorsal and anal fins. Its dorsal fin is composed of 14–17 rays, anal fins is composed of 16–20 rays, and pectorals 10–12. Atlantic needlefish are found from Maine to Brazil and have been known to venture into fresh water for short periods, water columns, estuary, and reef associated.
The Sacramento pikeminnow, formerly known as the Sacramento squawfish, is a large cyprinid fish of California, United States. It is native to the Los Angeles River, Sacramento-San Joaquin, Pajaro-Salinas, Russian River, Clear Lake and upper Pit River river basins. It is predatory and reaches up to 1.4 m (4.6 ft) in total length.
The Ameca shiner is a species of cyprinid fish in the family Cyprinidae. The Ameca shiner was described in 1986 from upper parts of the Ameca River drainage in Jalisco, Mexico. Although already feared extinct by 1969, and listed as such by the IUCN when rated in 1996, a tiny population was rediscovered in 2001. Some were brought into captivity to form the basis of a breeding program. These have been used for a reintroduction project since 2015.
Gasterosteus is a genus of ray-finned fishes belonging to the family Gasterosteidae, the sticklebacks. These fishes are found in freshwater, brackish water and marine habitats in the Holarctic region.
The plains minnow is one of the 324 fish species found in central United States. It is a large minnow that was once a common bait fish. The plains minnow requires shallow, slow-moving streams to complete its life cycle. Pollution, dams, and introduced sport fish have caused populations to decline.
Gorgasia is one of the two genera that belong to the subfamily Heterocongrinae. This genus is classified by the behavioral pattern of burrowing 75% of their bodies in the sandy substrate they live in and protruding their upper body into the water current above, giving the appearance that they are planted into the ground. This protruding behavior serves a multipurpose functionality to their survival.
Derilissus is a genus of clingfishes belonging to the family Gobiesocinae found in the western Atlantic Ocean. This family of fish is identified by their appearance as small fish with sucking discs which allow them to attach themselves to various surfaces. Derilissus differs from other genera due to its attached gill membranes.
Arapaimidae is a family of freshwater ray-finned fish belonging to the family Osteoglossidae. It includes the South American arapaimas of the Amazon and Essequibo basins and the African arowana from the watersheds of the Sahelo-Sudanese region, Senegal, Gambia, and parts of Eastern Africa. This family is sometimes treated as the subfamily Arapaiminae. A commonly used synonym is Heterotidinae, but according to the ICZN, Arapaimidae has priority.
The marbled sculpin is a species of sculpin found in the Klamath and Pit River drainages in northern California and southern Oregon. Three subspecies have been identified: the upper Klamath marbled sculpin, which occurs in the Klamath River watershed above Klamath Falls; the lower Klamath marbled sculpin, which occurs in the Klamath River watershed downstream of Iron Gate Dam; and the bigeye marbled sculpin, which inhabits the Pit River Watershed. However, genetic analysis performed in 2012 indicated minimal difference between individuals from each of these three regions.
The Altamaha shiner is a species of fish in the family Cyprinidae. It is endemic to the Piedmont region of Georgia, where it occurs in the upper areas of the Altamaha River drainage area, primarily above the fall line in north-central Georgia.
Ernest Albert Lachner was an American ichthyologist with an international reputation for his research on Indo-Pacific gobies and cardinalfishes.
Haemulon squamipinna is a species of marine ray-finned fish, a grunt belonging to the family Haemulidae. It is found in the western Atlantic Ocean where it is endemic to Brazil, here it is locally known as Xira Amarela, and occurs along the coast from the states of Ceará to Bahia. It grows to about 20 cm (7.9 in) in length, feeds at night on benthic invertebrates, and is important for subsistence fisheries along the northeastern Brazilian coast. It forms large schools that can number in the thousands, sometimes with Haemulon aurolineatum. Juveniles are often found in shallow reefs at depths of 2 to 5 m while adults are found in deeper areas at 5 to 30 m.
Erik Bertelsen was a Danish ichthyologist, who specialised in deep sea fish. The fish, Diaphus bertelseniNafpaktitis, 1966 is named in his honour.
