Hornyhead chub

Last updated

Hornyhead chub
FMIB 51129 Horny Head or River Chub.jpeg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Subfamily: Leuciscinae
Genus: Nocomis
Species:
N. biguttatus
Binomial name
Nocomis biguttatus
Synonyms [2]
  • Semotilus biguttatusKirtland, 1840
  • Luxilus kentuckiensis Rafinesque, 1820
  • Nocomis nebracensis Girard, 1856
  • Ceratichthys cyclotis Cope, 1865
  • Ceratichthys stigmaticusCope, 1865

The hornyhead chub (Nocomis biguttatus) is a small species of minnow in the family Cyprinidae of order Cypriniformes. It mainly inhabits small rivers and streams of the northern central USA, up into Canada. The adults inhabit faster, rocky pools of rivers.

Contents

Range

The hornyhead chub ranges from Wyoming, North Dakota, and South Dakota, east to the Hudson River drainage and south to Oklahoma. In South Dakota, the hornyhead chub is at the western edge of its range. Hornyhead chubs have been found in several water bodies in the Minnesota River Basin including the north and south forks of the Yellowbank River, Monigan Creek, Cobb Creek, Whetstone Creek, the North Fork of Whetstone Creek and Gary Creek in Roberts, Grant and Deuel Counties, as well as in Big Stone Lake in Grant County. In 1952, hornyhead chubs were documented to occur in the Big Sioux River drainage, but the exact location is unknown. The hornyhead chub has not been documented in the Big Sioux River drainage since the finding in 1952, and is likely extirpated from this watershed. [3] They are also found in the Mississippi River basin, Red River drainage, Ohio River and lower Kentucky River systems. They can be found from New York west into the Dakotas with isolated populations in the Platte and Colorado River Systems, and north from Manitoba and south into Kentucky. There are hornyhead chubs in Georgia below Chattahoochee Forest National Fish Hatchery on Rock Creek and Toccoa River in Suches,GA. [4]

Description

The Hornyhead chub is moderate in size and slightly subterminal with an inconspicuous barbel in corner of mouth. This fish has no teeth. A body pattern of a back olive brown in color, with its sides having silvery color, and a belly of white. It also has a dark lateral stripe and a spot at the base of the tail, which is faint or absent in some adults. Fins contain decorative markings. Its body shape is fusiform and robust, round in cross-section. Typical adult size is 100–150 mm (3.9–5.9 in) TL, with a maximum of about 225 mm (8.9 in). It has a forked tail and a single relatively short dorsal fin with 8 rays and without spines. Its pelvic fins are abdominal and has no adipose fin. Lastly, its anal fin with 7 rays has no spines. Its distinguishing characteristics are its moderately slightly subterminal mouth, and its defining inconspicuous barbel in the corner of its mouth. It also uniquely has 38-48 lateral line scales and a dark lateral stripe and caudal spot. Breeding adults have numerous large pointed tubercles on the top of their heads, smaller tubercles on their pectoral fins and a red or orange spot on the upper opercle behind their eyes. Juveniles look similar to adults, but have more obvious lateral stripes and caudal spots, and their tails are typically more reddish than the adult's tail. [5]

Habitat

The hornyhead chub is found in rocky pools and runs of creeks and small to medium-sized rivers. The hornyhead chub inhabits riffle/pool sections of small streams to medium-sized rivers. Although they are occasionally found in dark-water streams, they are more commonly found in clear-water streams. Presence is inversely related to turbidity. Vegetation does not necessarily have an effect on abundance of adults, however, the young use vegetation extensively for cover and are found in higher concentrations in these areas, at least for the first several weeks to one month of life. This species is commonly found in water depths of 2–6 ft (61–183 cm). [6]

Life history and reproduction

Hornyhead chubs spawn from May through June. They become sexually mature at 2 to 3 years of age. Males build a cup shaped depression that they build up with pebbles that can be as large as 1–3 feet (0.30–0.91 m) across and 6–8 inches (150–200 mm) high. [3] Eggs and sperm are deposited in depressions in the nests and covered with gravel. Males defend the nest mounds from other N. biguttatus males but not other species. Other species take advantage of this defense and spawn in the nest mounds. [4] The result of this is sometimes accidental hybridization. The same male may spawn with several females. [6]

Diet

The hornyhead chub is a visual feeder that is active primarily during daylight. A variety of plant and animal food items are commonly reported for hornyhead chubs. Animal food items for the young include: rotifers, cladocerans, copepods, chironomids, and aquatic insect larvae. Older hornyhead chubs are known to consume: clams, snails, crayfish, worms, aquatic insect larvae, and fish. [6]

Importance to humans

Due to the fact that smallmouth bass, northern pike, and rock bass are thought to prey on the hornyhead chub, this type of minnow is often used as bait during fishing expeditions. [7]

Conservation status

Globally, the status of the hornyhead chub is secure, but it is considered Critically Imperiled in Wyoming, Kansas, and Pennsylvania, and Possibly or Presumed Extirpated in Colorado and Nebraska. Currently, The Nature Conservancy has assigned the hornyhead chub a national ranking of G5 [8] suggesting that the species’ existence is globally secure and of least concern (LC). [1] [9]

Etymology of name

Etymology: Nocomis: An indigenous (North America) name used by Charles Girard; ojibwe, nokomis = grandmother. Actinopterygii (ray-finned fishes) > Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Leuciscinae. [10]

Related Research Articles

<i>Rhinichthys</i> Genus of fishes

Rhinichthys, known as the riffle daces, is a genus of freshwater fish in the carp family (Cyprinidae) of the order Cypriniformes. The type species is Rhinichthys atratulus, the blacknose dace. Rhinichthys species range throughout North America.

<span class="mw-page-title-main">Tennessee shiner</span> Species of fish

The Tennessee shiner is a species of fish in the family Cyprinidae, the carps and minnows. It is native to the southeastern United States.

The Tennessee dace is a species of ray-finned fish in the family Cyprinidae. It is found only in the United States; particularly in northeast Tennessee and southwest Virginia, and parts of extreme northwest Georgia. Until recently, they were considered a subspecies of mountain redbelly dace. They are commonly found in East Tennessee in spring fed first-order streams, often in silt and fine gravel pools, or undercut banks. These streams usually do not exceed two meters in width.

The Sandhills chub is a species of freshwater fish in the family Cyprinidae of order Cypriniformes. There are 4 species of Semotilus, 2 of which occur in South Carolina. This fish is found only in North Carolina and South Carolina. The Sandhills chub is predominately found in the Carolina Sandhills and some areas of Cape Fear, Pee Dee and Santee river drainages. It is characterized by its robust body, large head and lack of a dark blotch or smudge on their dorsal fin which is present on the closely related Creek Chub. The Sandhills chub has fine scales, a pinkish body and can be up to 9.4 inches.

<i>Semotilus atromaculatus</i> Species of fish

Semotilus atromaculatus, known as the creek chub or the common creek chub, is a small minnow, a freshwater fish found in the eastern US and Canada. Differing in size and color depending on origin of development, the creek chub can usually be defined by a dark brown body with a black lateral line spanning horizontally across the body. It lives primarily within streams and rivers. Creek chubs attain lengths of 2-6 inches with larger specimens of up to 12 inches long.

<span class="mw-page-title-main">Redlip shiner</span> Species of fish

The redlip shiner is a North American species of freshwater cyprinid fish. This shiner can be found in a few streams located in North Carolina, South Carolina, and Virginia. It inhabits rocky pools of clear headwaters, creeks and small rivers. Adults range in length from 40 to 55 mm.

<span class="mw-page-title-main">Rainbow shiner</span> Species of fish

The rainbow shiner is a North American species of ray-finned fish in the genus Notropis.

<span class="mw-page-title-main">Leuciscinae</span> Subfamily of fishes

Leuciscinae is a subfamily of the freshwater fish family Cyprinidae, which contains the true minnows.

<span class="mw-page-title-main">Speckled chub</span> Species of fish

The speckled chub is a species of freshwater fish in the family Cyprinidae of the order Cypriniformes, which also includes carps, suckers, and loaches.

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.

The redtail chub is a freshwater fish found in the U.S. states of Tennessee and Kentucky.

The river chub is a minnow in the family Cyprinidae. It is one of the most common fishes in North American streams.

<span class="mw-page-title-main">Flathead chub</span> Species of fish in the carp family

The flathead chub is a species of fish in the carp family, Cyprinidae. It is the only member of the monotypic genus Platygobio. It is native to North America, where it is distributed throughout central Canada and the central United States.

<span class="mw-page-title-main">Laurel dace</span> Species of fish

The laurel dace is a species of freshwater minnow native to the U.S. state of Tennessee. It was first discovered in 1976. A very rare species, it has only been found in localized populations in six small streams on the Walden Ridge portion of the Cumberland Plateau in Tennessee. It is found in six streams: the Soddy, Horn, Cupp, Young's, Moccasin, and Bumbee Creeks, all of which drain into larger rivers that eventually feed the Tennessee River. It is believed to be extirpated from Laurel Creek, the only other stream where it was known to occur.

<i>Mylocheilus caurinus</i> Species of fish

Mylocheilus caurinus, the peamouth, peamouth chub, redmouth sucker or northwestern dace, is a species of freshwater ray-finned fish from the family Cyprinidae, the carps and minnows, that is found in western North America. It is the only species in its genus.

<span class="mw-page-title-main">Gravel chub</span> Species of fish

The gravel chub, also known as the spotted chub, is a freshwater minnow from the family Cyprinidae. This species of fish has a spotted distribution inhabiting various small rivers and streams in North America. The gravel chub requires a highly specific clean habitat making it vulnerable to various types of pollutants and in need of conservation efforts.

<span class="mw-page-title-main">Flame chub</span> Species of fish

The flame chub is a species of freshwater fish in the family Cyprinidae found only in the United States. Its range broadly follows the Tennessee River from above Knoxville, Tennessee, to the mouth of the Duck River. Historically the species was found in Kentucky, Tennessee, Alabama and Georgia. The preferred habitat of flame chub is in small flowing streams often associated with springs.

<span class="mw-page-title-main">Bluehead chub</span> Species of fish

The bluehead chub is a cyprinid native to North America. Its name is due to its appearance, as breeding males have a blue head. Adult bluehead chubs are, on average, between 70 and 160 mm in length. They have a robust body with uniformly large scales. The scales are present on the belly and breast. They have a pored body, a weakly falcate pectoral fin, and pharyngeal teeth. They have a large mouth, small eyes, and a terminal barbel. Other characteristics include a darkened lateral band, spot on the caudal fin, and red coloration of the fins and iris of the eyes. They have 40 lateral line scales and 8 anal rays. The bluehead chub is a freshwater fish, and lives in pools, rivers, and streams. They feed on insects and plants.

Aphyocypris lini, the garnet minnow or Venus minnow, is a species of cyprinid endemic to China. It was first collected from Hong Kong by A.W. Herre in 1936. The introduction of mosquitofish and habitat destruction caused the extirpation of this species from Hong Kong and the species was considered to be extinct in the wild. However, a similar species Aphyocypris pulchrilineata was discovered in Guangxi in southern China, but this species lacks the dark spot on the base of the caudal fin.

The Dixie chub is a species of freshwater ray-finned fish from the carp and minnow family Cyprinidae. It is endemic to southeastern United States.

References

  1. 1 2 NatureServe (2013). "Nocomis biguttatus". The IUCN Red List of Threatened Species . 2013: e.T202273A18235841. doi: 10.2305/IUCN.UK.2013-1.RLTS.T202273A18235841.en .
  2. "Synonyms of Nocomis biguttatus (Kirtland, 1840)". Fishbase . Retrieved 23 November 2017.
  3. 1 2 "Landowner Programs - South Dakota Game, Fish, and Parks". gfp.sd.gov.
  4. 1 2 "Hornyhead Chub". Fishes of Boneyard Creek. Retrieved 5 May 2015.
  5. UW Sea Grant. "Fish Details". www.seagrant.wisc.edu. University of Wisconsin.
  6. 1 2 3 {{Cite web|url=https://dr.lib.iastate.edu/server/api/core/bitstreams/1814188c-474c-4553-b3b7-e459353f03b1/content |title=Aquaculture Potential for Hornyhead (Redtail) Chubs|last1=Gunderson|first1=Jeff|last2=Tucker|first2=Paul |last3=Richards|first3=Carl |date=Feb 2010|publisher=University of Minnesota Sea Grant|location=Duluth}
  7. Hatch, Jay T. "Fishes of Minnesota-Hornyhead chub". academics.cehd.umn.edu.
  8. "Comprehensive Report Species - Nocomis biguttatus". www.natureserve.org.
  9. "Region 2 - Land & Resource Management" (PDF). www.fs.fed.us.
  10. Froese, Rainer; Pauly, Daniel (eds.) (2017). "Nocomis biguttatus" in FishBase . November 2017 version.