Common carp

The common carp (Cyprinus carpio), also known as European carp or Eurasian carp, is a widespread freshwater fish of eutrophic waters in lakes and large rivers in Europe and Asia.^[2][3] The native wild populations are considered vulnerable to extinction by the International Union for Conservation of Nature (IUCN),^[1] but the species has also been domesticated and introduced (see aquaculture) into environments worldwide, and is often considered a destructive invasive species,^[2] being included in the list of the world's 100 worst invasive species. It gives its name to the carp family, Cyprinidae.

Common carp
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cypriniformes
Family:	Cyprinidae
Subfamily:	Cyprininae
Genus:	Cyprinus
Species:	C. carpio
Binomial name
Cyprinus carpio Linnaeus, 1758
native range    introduced range

Painting by Ellen Edmonson

Taxonomy

Common carp by Alexander Francis Lydon

The type subspecies is Cyprinus carpio carpio, native to much of Europe (notably the Danube and Volga rivers).^[2][4]

The subspecies Cyprinus carpio haematopterus (Amur carp), native to eastern Asia, was recognized in the past,^[4] but recent authorities treat it as a separate species under the name Cyprinus rubrofuscus.^[1][5] The common carp and various Asian relatives in their pure forms can be separated by meristics and also differ in genetics, but they are able to interbreed.^[1][6] Common carp can also interbreed with the goldfish (Carassius auratus); the result is called Kollar carp.^[7][8] Another artificial hybrid is Ghost Carp, which is bred between common carp and Japanese Purachina Koi. The large variation of colours produced makes ghost carp a popular commercial species.^[9]

History

The common carp is native to Europe and Asia and has been introduced to every part of the world except the poles. They are the third most frequently introduced fish species worldwide,^[10] and their history as a farmed fish dates back to Roman times.^[11] Carp are used as food in many areas but are also regarded as a pest in several regions due to their ability to out-compete native fish stocks.^[12] The original common carp was found in the inland delta of the Danube River about 2000 years ago and was torpedo-shaped and golden-yellow in colour. It had two pairs of barbels and a mesh-like scale pattern. Although this fish was initially kept as an exploited captive, it was later maintained in large, specially built ponds by the Romans in south-central Europe (verified by the discovery of common carp remains in excavated settlements in the Danube delta area). As aquaculture became a profitable branch of agriculture, efforts were made to farm the animals, and the culture systems soon included spawning and growing ponds.^[13] The common carp's native range also extends to the Black Sea, Caspian Sea, and Aral Sea.^{[citation needed]}

Both European and Asian subspecies have been domesticated.^[4] In Europe, domestication of carp as food fish was spread by monks between the 13th and 16th centuries. The wild forms of carp had already reached the delta of the Rhine in the 12th century, probably with some human help.^[14] Variants that have arisen with domestication include the mirror carp, with large, mirror-like scales (linear mirror – scaleless except for a row of large scales that run along the lateral line; originating in Germany), the leather carp (virtually unscaled except near dorsal fin), and the fully scaled carp. Koi carp (錦鯉 (nishikigoi) in Japanese, 鯉魚 (pinyin: lĭ yú) in Chinese) is a domesticated ornamental variety that originated in the Niigata region of Japan in the 1820s,^[15] but its parent species are likely the East Asian carp, possibly C. rubrofuscus.^[1][5]

Physiology and life history

Dutch wild carp

The carp has a robust build, with a dark gold sheen that is most prominent on its head. Its body is adorned with large conspicuous scales that are very shiny. It has large pectoral fins and a tapering dorsal fin running down the last two thirds of its body, getting progressively higher as it nears the carp's head. Its caudal and anal fins may either be a dark bronze or washed with a rubbery orange hue. There are two or three spines on the anal fin,^[2] the first being serrated,^[16] and the dorsal fin has three or four anterior spines,^[2] the first of which is also serrated.^[17] The mouth of the carp is downward-turned, with two pairs of barbels, one pair at the corners of the upper lip, and the other on the lower.^[18] Wild common carp are typically slimmer than domesticated forms, with body length about four times body height, red flesh, and a forward-protruding mouth. Common carp can grow to very large sizes if given adequate space and nutrients. Their average growth rate by weight is about half the growth rate of domesticated carp.^[19][20] They do not reach the lengths and weights of domesticated carp, which (range, 3.2–4.8 times)^[2] can grow to a maximum length of 120 centimetres (47 in), a maximum weight of over 40 kilograms (88 lb).^[2] The longest-lived common carp documented was of wild-origin (in non-native habitat of North America), and was 64 years of age.^[21] The largest recorded carp, caught by British angler, Colin Smith, in 2013 at Etang La Saussaie Fishery, France, weighed 45.59 kilograms (100.5 lb). The average size of the common carp is around 40–80 cm (16–31 inches) and 2–14 kg (4.4–30.9 lb).^{[citation needed][22]}

The skeleton of a European carp

European carp x-ray

Habitat

Although tolerant of most conditions, common carp prefer large bodies of slow or standing water and soft, vegetative sediments. As schooling fish, they prefer to be in groups of five or more. They naturally live in temperate climates in fresh or slightly brackish water with a pH of 6.5–9.0 and salinity up to about 0.5%,^[23] and temperatures of 3 to 35 °C (37–95 °F).^[2] The ideal temperature is 23 to 30 °C (73–86 °F), with spawning beginning at 17 to 18 °C (63–64 °F); they easily survive winter in a frozen-over pond, as long as some free water remains below the ice.^[23] Carp are able to tolerate water with very low oxygen levels, by gulping air at the surface.^[3][24]

Diet

Common carp are omnivorous. They can eat a herbivorous diet of aquatic plants, plant tubers, and seeds, but prefer to scavenge the bottom for insects, crustaceans (including zooplankton and crawfish), molluscs, benthic worms, fish eggs, and fish remains.^[25][26] Common carp feed throughout the day with the most intensive feeding at night and around sunrise.^[27]

Feeding mechanisms

Common carp are benthic feeders and root in sediment for food items. Their barbels may help to feel for food embedded in the sediment, like plant tubers or annelids.^[18] Carp pick up sediment by generating suction and mouth the content to identify and select food items by taste and size. Gill rakers form a branchial sieve that may aid in food separation, but the carp is also able to clamp down on food items it detects using a muscular palatal pad and inferior postlingual organ. The sediment is passed back and forth between the mouth and pharynx repeatedly as food is found. The carp may end up spitting out sediment,^[28] which contributes to water turbidity.^[29]

While common carp have no oral teeth, ten pharyngeal teeth are used for crushing or grinding food.^[28][30] The carp has no stomach,^[31] and the intestinal length can vary based partially on dietary composition in early life.^[18]

Reproduction

An egg-layer, a typical adult female can lay 300,000 eggs in a single spawn.^[32] Although carp typically spawn in the spring, in response to rising water temperatures and rainfall, carp can spawn multiple times in a season. In commercial operations, spawning is often stimulated using a process called hypophysation, where lyophilized pituitary extract is injected into the fish. The pituitary extract contains gonadotropic hormones which stimulate gonad maturation and sex steroid production, ultimately promoting reproduction.^{[citation needed]}

Predation

A single carp can lay over a million eggs in a year.^[3] Eggs and fry often fall victim to bacteria, fungi, and the vast array of tiny predators in the pond environment. Carp which survive to the juvenile stage are preyed upon by other fish such as the northern pike and largemouth bass, and several birds (including cormorants, herons, goosanders, and ospreys)^[33] and mammals (including otter^[34] and mink^[35]).

Mirror carp

A 12 lb (5.4 kg) mirror carp

Mirror carp, regionally known as Israeli carp,^{[note 1]} are a type of domesticated fish commonly found in Europe but widely introduced or cultivated elsewhere. They are a variety of the common carp (Cyprinus carpio) developed through selective breeding. The name "mirror carp" originates from their scales' resemblance to mirrors.

Genetics

The most striking difference between mirror and common carp is the presence of large mirror-like scales on the former. The mirror-scale phenotype is caused by a genetic mutation present at one of two scale trait loci, denoted by their S and N alleles, respectively. The genotype that produces a mirror scale phenotype is "ssnn" (all recessive), while wild-type carp may have either SSnn or Ssnn genotype.^{[36]: 13–14} The "S" locus has been identified as containing the gene encoding fibroblast growth factor receptor Fgfr1A1, which was duplicated during the course of carp evolution and consequently does not typically produce lethal phenotypes when only one locus is mutated.^[38] The "N" locus has not been identified,^[39] but is hypothesized to have bearing on the development of embryonic mesenchyme.^{[36]: 17–18}

Contrary to popular belief, a leather carp is not always a mirror carp without scales. Similar to mirror carp, leather, or "nude" carp, are homozygous recessive at the "S" locus, but unlike mirror carp, true leather carp are heterozygous for a dominant mutant allele at the "N" locus (ssNn genotype).^{[note 2]} Leather carp also have reduced numbers of red blood cells and slower growth rates than scaled carp.^{[36]: 16–17} Mirror carp from Hungarian and Asian stocks have been observed to have fewer pharyngeal teeth than scaled carp, while nude carp had fewer still.^[39]

A population of mirror carp in Madagascar (there an invasive species) was found to have reverted to full scale cover after being introduced from France in the early twentieth century.^[40] The feral Malagasy carp still possessed large scales due to their mirror phenotype, but had increased scale coverage approaching that of wild-type carp.^[40] Hubert et al. (2016) found that the recessive allele at the "S" locus was still fixed in the population.^[40] They believe that the phenotypic reversion was due to compensation by quantitative trait loci as a result of a selective disadvantage for partial scaling in the wild, perhaps related to an impairment in parasite resistance.^[40]

Introduction into other habitats

Carp in Lake Powell, Arizona

Carp in the Maribyrnong River, Australia

Carp in the duck pond in Herbert Park, Dublin, Ireland

Koi feeding. The koi are ornamental varieties of domesticated carp and are kept in garden ponds. Although the koi's parent species has been considered the common carp, recent authorities believe it originates from an East Asian carp, possibly Cyprinus rubrofuscus.^[1][5]

Common carp have been introduced to most continents and some 59 countries. In absence of natural predators or commercial fishing, they may extensively alter their environments due to their reproductive rate and their feeding habit of grubbing through bottom sediments for food. In feeding, they may destroy, uproot, disturb and eat submerged vegetation, causing serious damage to food sources and habitats of native duck (such as canvasbacks) and fish populations.^[41][42]

In 2020, scientists demonstrated that a small proportion of fertilized common carp eggs ingested by waterfowl survive passing through the digestive tract and hatch after being retrieved from the feces.^[43][44] Birds exhibit strong preference for fish eggs, while cyprinids produce hundreds of thousands of eggs at a single spawning event. These data indicate that despite the low proportion of eggs surviving the digestive tract of birds, endozoochory might provide a potentially overlooked dispersal mechanism of invasive cyprinid fish. If proven under natural circumstances, endozoochorous dispersal of invasive fish could be a strong conservation concern for freshwater biodiversity.^{[citation needed]}

Australia

Carp were introduced to Australia over 150 years ago but were not seen as a recognised pest species until the "Boolarra" strain appeared in the 1960s.^[45][46] After spreading massively through the Murray–Darling basin, aided by massive flooding in 1974,^[45] they have established themselves in every Australian territory except for the Northern Territory.^[47] In Victoria, the common carp has been declared a noxious fish species, and the quantity a fisherman can take is unlimited.^[48] In South Australia, it is an offence for this species to be released back to the wild.^[49] An Australian company produces plant fertilizer from carp.^[50][51]

Efforts to eradicate a small colony from Lake Crescent in Tasmania, without using chemicals, have been successful, but the long-term, expensive and intensive undertaking is an example of both the possibility and difficulty of safely removing the species once it is established.^[52] One proposal, regarded as environmentally questionable, is to control common carp numbers by deliberately exposing them to the carp-specific koi herpes virus with its high mortality rate.^[47] In 2016, the Australian Government announced plans to release this virus into the Murray–Darling basin in an attempt to reduce the number of invasive common carp in the water system.^[53][54] However, in 2020, this plan was found to be unlikely to work.^[55] The CSIRO has also developed a technique for genetically modifying carp so that they only produce male offspring. This daughterless carp method shows promise for totally eradicating carp from Australia's waterways.^{[citation needed]}

North America

Common carp were brought to the United States in 1831.^[56] In the late 19th century, they were distributed widely throughout the country by the government as a food fish, but they are now rarely eaten in the United States, where they are generally considered pests. As in Australia, their introduction has been shown to have negative environmental consequences.^[57]

In Utah, the common carp's population in Utah Lake is expected to be reduced by 75 percent by using nets to catch millions of them, and either giving them to people who will eat them or processing them into fertilizer. This, in turn, will give the declining population of the native June sucker a chance to recover.^[58] Another method of control is to trap them with seine nets in tributaries they use to spawn, and exposing them to the piscicide rotenone. This method has been shown to reduce their impact within 24 hours and greatly increase native vegetation and desirable fish species. It also allows native fish to prey more easily on young carp.^{[citation needed]}

Common carp are thought to have been introduced into the Canadian province of British Columbia from the neighboring Washington state. They were first noted in the Okanagan Valley in 1912, as was their rapid growth in population. Carp are currently distributed in the lower Columbia (Arrow Lakes), lower Kootenay, Kettle (Christina Lake), and throughout the Okanagan system.^[59]

Common carp aquaculture

Global aquaculture production of common carp in tonnes from 1950 to 2013

Common carp contributed around 4.67 million tons on a global scale during 2015–2016, roughly accounting for 7.4% of the total global inland fisheries production. In Europe, common carp contributed 1.8% (0.17 Mt) of the total inland fisheries production (9.42 Mt) during 2015–2016. It is a major farmed species in European freshwater aquaculture with production localized in central and eastern European countries. The Russian Federation (0.06 Mt) followed by Poland (0.02 Mt), Czech Republic (0.02 Mt), Hungary (0.01 Mt) and Ukraine (0.01 Mt) represents about 70% of carp production in Europe during 2016. In fact, the land‐locked central European countries rely heavily on common carp aquaculture in fishponds. The average productivity of carp culture systems in central European countries ranges between 0.3 and 1 ton ha−1. The European common carp production, in terms of volume, reached its peak (0.18 Mt) during 2009–2010 and has been declining since. Carp farming is often criticized as an anthropogenic driver of eutrophication of inland freshwater bodies - especially in the Central Eastern European Region (CEER). There has been some debate between environmentalists and carp farmers concerning eutrophication of water bodies, manifested into lobbying at ministry levels surrounding fishpond legislations.^[60][61] European carp aquaculture in fish ponds most likely has the least nutrient burden to the environment than most food production sectors in the European Union.^[62]

As food and sport

See also: Carp fishing

Lake Prespa carp, as served

European carp caught with an artificial fly

Breeding and Fishing

The Romans farmed carp and this pond culture continued through the monasteries of Europe and to this day. In China, Korea, and Japan, carp farming took place as early as the Yayoi period (c. 300 BC – AD 300).^[63]

The annual tonnage of common carp produced in China alone, not to mention the other cyprinids, exceeds the weight of all other fish, such as trout and salmon, produced by aquaculture worldwide. Roughly three million tonnes are produced annually, accounting for 14% of all farmed freshwater fish in 2002. China is by far the largest commercial producer, accounting for about 70% of carp production.^[23] Carp is eaten in many parts of the world both when caught from the wild and raised in aquaculture.

Common carp are extremely popular with anglers in many parts of Europe, and their popularity as quarry is slowly increasing among anglers in the United States (though they are still generally considered pests and destroyed in most areas of the U.S.), and southern Canada. Carp are also popular with spear, bow, and fly fishermen.^[64]

Food culture

In Central Europe, it is a traditional part of a Christmas Eve dinner. Hungarian fisherman's soup, a specially prepared fish soup of carp alone or mixed with other freshwater fish, is part of the traditional meal for Christmas Eve in Hungary along with stuffed cabbage and poppy seed roll and walnut roll. A traditional Czech Christmas Eve dinner is a thick soup of carp's head and offal, fried carp meat (sometimes the meat is skinned and baked instead) with potato salad or boiled carp in black sauce.^[65] A Slovak Christmas Eve dinner is quite similar, with soup varying according to the region and fried carp as the main dish. Also in Austria, parts of Germany, and Poland, a fried carp is one of the traditional dishes on Christmas Eve. ^[66] Carp are mixed with other common fish to make gefilte fish, popular in Jewish cuisine. ^[67]

In Western Europe, the carp is cultivated more commonly as a sport fish, although there is a small market for it as a food fish.^[68][69]

In the United States, carp is mostly ignored as a food fish. Almost all U.S. shoppers bypass carp, due to a preference for filleted fish as opposed to cooking whole. Carp have smaller intramuscular bones called y-bones, which makes them a whole fish species for cooking.

When Eurasian Carp was introduced to Lake Toba, it was adapted to be used for the traditional dish Arsik. ^[70]

See also

• List of freshwater aquarium fish species
• Japanese white crucian carp
• Rough fish
• Benson, a notable common carp
• Mud carp

Notes

1. This vernacular name most likely owes to the Israeli development of a mirror carp strain called "Dor-70"^[36]: 75 that has been widely exported, although these fish, introduced to the United States in the 1950s, are distinguishable from other fish called mirror carp according to Fishes of Arkansas.^[37]
2. Homozygosity for the dominant "N" allele is lethal.^[36]: 13 Heterozygosity reduces viability.^[36]: 15

References

1. Freyhof, J.; Kottelat, M. (2024). "Cyprinus carpio". IUCN Red List of Threatened Species. 2024: e.T6181A3107721. doi:10.2305/IUCN.UK.2024.RLTS.T6181A3107721.en. Retrieved 19 November 2021.
2. Fishbase: Cyprinus carpio Linnaeus, 1758
3. Arkive: Common carp (Cyprinus carpio) Archived 2010-01-01 at the Wayback Machine
4. Jian Feng Zhou, Qing Jiang Wu, Yu Zhen Ye & Jin Gou Tong (2003). Genetic divergence between Cyprinus carpio carpio and Cyprinus carpio haematopterus as assessed by mitochondrial DNA analysis, with emphasis on origin of European domestic carp Genetica 119: 93–97
5. Craig, J.F., eds. (2015). Freshwater Fisheries Ecology. p. 297. Wiley-Blackwell. ISBN 978-1-118-39442-7.
6. Zhou, J., Wu, Q., Wang, Z. and Ye, Y. (2004). Molecular Phylogenetics of Three Subspecies of Common carp Cyprinus Carpio, based on sequence analysis of cytochrome b and control region of mtDNA. Journal of Zoological Systematics and Evolutionary Research 42(4): 266–269.
7. Taylor, J., R. Mahon. 1977. Hybridization of Cyprinus carpio and Carassius auratus, the first two exotic species in the lower Laurentian Great Lakes. Environmental Biology Of Fishes 1(2):205-208.
8. Photo of goldfish x common carp hybrid Archived 2007-10-17 at the Wayback Machine in Melton Hill Reservoir from the Tennessee Wildlife Resources Agency
9. "Carp - Ghost/Koi". Farnham Angling Society. Retrieved 18 November 2023.
10. Courtenay, Walter R.; Welcomme, R. L. (1989-05-23). "International Introductions of Inland Aquatic Species". Copeia. 1989 (2): 520. doi:10.2307/1445460. ISSN 0045-8511. JSTOR 1445460.
11. Balon, Eugene K. (1974), "Probable Origin of Domestication", Domestication of the carp Cyprinus caprio L., Royal Ontario Museum, pp. 16–18
12. "Common Carp." Aliens Among Us. N.p., n.d. Web. 27 Oct. 2014. <http://alienspecies.royalbcmuseum.bc.ca/eng/species/common-carp&gt%5B‍%5D;.
13. "Balon, E. K. (2004). About the oldest domesticates among fishes. Journal of Fish Biology, 65 (Supplement A): 1–27. In Carp Fishing Science". Archived from the original on 2010-05-03. Retrieved 2019-02-16.
14. "Aanvullend Archeologisch Onderzoek op terrein 9 te Houten-Loerik, gemeente Houten (U.)" (PDF). Archived from the original (PDF) on 2016-03-04. Retrieved 2014-08-06.
15. "Ray Jordan Koi History". Archived from the original on 2009-07-23. Retrieved 2009-04-20.
16. "Maryland Fish Facts: Common Carp". Maryland Department of Natural Resources. Retrieved 27 July 2024.
17. "Common carp - Cyprinus carpio". Aquaculture Feed and Fertilizer Resources Information System. Food and Agriculture Organization of the United Nations. 2024. Retrieved 27 July 2024.
18. "Common carp - Natural food and feeding habits". Aquaculture Feed and Fertilizer Resources Information System. Food and Agriculture Organization of the United Nations. 2024. Retrieved 27 July 2024.
19. Wilt, R.S. de; Emmerik W.A.M. (2008-01-31). "Kennisdocument Karper Sportvisserij Nederland". Archived from the original on 2012-01-03. Retrieved December 13, 2011.
20. Füllner G.; Pfeifer M.; Langner N. "Karpfenteichwirtschaft" (PDF). Sächsische Landesanstalt für Landwirtschaft. Archived from the original (PDF) on 2012-04-15. Retrieved December 13, 2011.
21. Dauphinais, Justine D.; Miller, Loren M.; Swanson, Reid G.; Sorensen, Peter W. (2018-08-01). "Source–sink dynamics explain the distribution and persistence of an invasive population of common carp across a model Midwestern watershed". Biological Invasions. 20 (8): 1961–1976. Bibcode:2018BiInv..20.1961D. doi:10.1007/s10530-018-1670-y. ISSN 1573-1464. S2CID 254290935.
22. Nyaboke Aera, Callen; E Migiro, Kembenya (September 2014). "LENGTH-WEIGHT RELATIONSHIP AND CONDITION FACTOR OF COMMON CARP, CYPRINUS CARPIO IN LAKE NAIVASHA, KENYA". International Journal of Current Research. 6 (9): 8286–8292 – via ResearchGate.
23. Food and Agriculture Organization Fisheries & Aquaculture: Cultured Aquatic Species Information Programme – Cyprinus carpio
24. "Carp". BadAngling. Retrieved 2018-07-06.
25. Saikia, S. K.; Das, D. N. (July 2009). "Feeding ecology of common carp (Cyprinus carpio L.) in a rice–fish culture system of the Apatani plateau (Arunachal Pradesh, India)". Aquatic Ecology. 43 (2): 559–568. Bibcode:2009AqEco..43..559S. doi:10.1007/s10452-008-9174-y. ISSN 1386-2588.
26. "Cyprinus carpio". Animal Diversity Web.
27. Žák, Jakub (2021-11-01). "Diel pattern in common carp landings from angling competitions corresponds to their assumed foraging activity". Fisheries Research. 243: 106086. Bibcode:2021FishR.24306086Z. doi:10.1016/j.fishres.2021.106086. ISSN 0165-7836.
28. Sibbing, Ferdinand A. (1988). "Specializations and limitations in the utilization of food resources by the carp, Cyprinus carpio: a study of oral food processing". Environmental Biology of Fishes. 22 (3): 161–178. Bibcode:1988EnvBF..22..161S. doi:10.1007/BF00005379.
29. "Field Guide: Common Carp Cyprinus carpio". Chesapeake Bay Program. 2024. Retrieved 27 July 2024.
30. Sibbing, Ferdinand A. (1982). "Pharyngeal mastication and food transport in the carp (Cyprinus carpio L.): A cineradiographic and electromyographic study". Journal of Morphology. 172 (2): 223–258. doi:10.1002/jmor.1051720208. PMID 30096970.
31. Sibbing, F.A. (1984). Food handling and mastication in the carp (Cyprinus carpio L.) (PhD thesis). Wageningen: Landbouwhogeschool, Wageningen University. Retrieved 27 July 2024.
32. "Carp Fishing for carp fishing information". Carp-fishing.org. Archived from the original on 2017-02-21. Retrieved 2011-12-03.
33. Cramp, S. (ed.). The Birds of the Western Palearctic volumes 1 (1977) & 2 (1980). OUP.
34. Kloskowski, J. (2000). "Selective predation by otters Lutra lutra on common carp Cyprinus carpio at farmed fisheries". Mamm. 64 (3): 287–294. doi:10.1515/mamm.2000.64.3.287.
35. Poole, Trevor B.; Dunstone, Nigel (1976). "Underwater predatory behaviour of the American mink (Mustela vison)". Journal of Zoology. 178 (3): 395–412. doi:10.1111/J.1469-7998.1976.TB02277.X.
36. Kirpitchnikov, Valentin S. (1999). Billard, R.; Repérant, J.; Rio, J.P.; Ward, R. (eds.). Genetics and Breeding of Common Carp. Paris: INRA. ISBN 2-7380-0869-0.
37. Robison, Henry W.; Buchanan, Thomas M. (2020). Fishes of Arkansas (2nd ed.). Fayetteville: The University of Arkansas Press. p. 144. ISBN 978-1682261033.
38. Rohner, Nicolas; Bercsényi, Miklós; Orbán, László; Kolanczyk, Maria E.; Linke, Dirk; Brand, Michael; Nüsslein-Volhard, Christiane; Harris, Matthew P. (2009). "Duplication of fgfr1 Permits Fgf Signaling to Serve as a Target of Selection during Domestication". Current Biology. 19 (19): 1642–1647. Bibcode:2009CBio...19.1642R. doi:10.1016/j.cub.2009.07.065. PMID 19733072.
39. Casas, Laura; Szűcs, Réka; Vij, Shubha; Goh, Chin Heng; Kathiresan, Purushothaman; Németh, Sándor; Jeney, Zsigmond; Bercsényi, Miklós; Orbán, László (2013). "Disappearing Scales in Carps: Re-Visiting Kirpichnikov's Model on the Genetics of Scale Pattern Formation". PLOS ONE. 8 (12): e83327. Bibcode:2013PLoSO...883327C. doi:10.1371/journal.pone.0083327. PMC 3875451. PMID 24386179. e83327.
40. Hubert, Jean-Noël; Allal, François; Hervet, Caroline; Ravakarivelo, Monique; Jeney, Zsigmond; Vergnet, Alain; Guyomard, René; Vandeputte, Marc (2016). "How could fully scaled carps appear in natural waters in Madagascar?". Proceedings of the Royal Society B: Biological Sciences. 283 (1837). doi:10.1098/rspb.2016.0945. PMC 5013790. PMID 27559059. 20160945.
41. "Welcome to". Lakeconservation.com. 2010-01-15. Archived from the original on 2013-01-27. Retrieved 2011-12-03.
42. Lackmann, Alec R.; Andrews, Allen H.; Butler, Malcolm G.; Bielak-Lackmann, Ewelina S.; Clark, Mark E. (2019-05-23). "Bigmouth Buffalo Ictiobus cyprinellus sets freshwater teleost record as improved age analysis reveals centenarian longevity". Communications Biology. 2 (1): 197. doi:10.1038/s42003-019-0452-0. ISSN 2399-3642. PMC 6533251. PMID 31149641.
43. "Experiment shows it is possible for fish to migrate via ingestion by birds". phys.org. Retrieved 5 July 2020.
44. Lovas-Kiss, Ádám; Vincze, Orsolya; Löki, Viktor; Pallér-Kapusi, Felícia; Halasi-Kovács, Béla; Kovács, Gyula; Green, Andy J.; Lukács, Balázs András (18 June 2020). "Experimental evidence of dispersal of invasive cyprinid eggs inside migratory waterfowl". Proceedings of the National Academy of Sciences. 117 (27): 15397–15399. Bibcode:2020PNAS..11715397L. doi:10.1073/pnas.2004805117. ISSN 0027-8424. PMC 7355035. PMID 32571940.
45. "Carp in Australian rivers | NSW Department of Primary Industries". www.dpi.nsw.gov.au. Archived from the original on 2021-11-28. Retrieved 2021-01-31.
46. Wednesday, 9 August 2006 Judy SkatssoonABC (2006-08-09). "Mother of all Aussie carp may be German". www.abc.net.au. Retrieved 2021-01-31.{{cite web}}: CS1 maint: numeric names: authors list (link)
47. "Reducing Australia's carp invasion". CSIRO. Archived from the original on 2019-07-23. Retrieved 2019-07-23.
48. Victorian Recreational Fishing Guide 2006-2007
49. "fishsa.com". Archived from the original on 2013-07-03. Retrieved 2007-03-11.
50. carp as fertilizer Archived 2007-01-25 at the Wayback Machine
51. Schremmer, Jessica. Carp finally find fans as fertiliser demand skyrockets for veggie gardens during pandemic ABC Rural, 17 January 2021. Retrieved 17 January 2021.
52. Kelly, Margot (February 5, 2020). "Carp success, after long battle against invasive fish, has trout faithful rejoicing". ABC News. Retrieved June 6, 2020.
53. Kilvert, Nick; Thomas, Kerrin (1 May 2016). "Herpes virus to be used in fight against carp in Murray River, Christopher Pyne says". ABC News. Australian Broadcasting Corporation. Archived from the original on 5 May 2016.
54. "Carp herpesvirus". Managing Water Ecosystems - CSIRO. 2018-04-26. Retrieved 2020-11-09.
55. Mintram, Kate S.; Oosterhout, Cock; Lighten, Jackie (2020-10-14). Knutie, Sarah (ed.). "Genetic variation in resistance and high fecundity impede viral biocontrol of invasive fish". Journal of Applied Ecology. 58. Wiley: 148–157. doi:10.1111/1365-2664.13762. ISSN 0021-8901.
56. Archived October 7, 2010, at the Wayback Machine
57. "USGS Nonindigenous Aquatic Species Program". Archived from the original on 2009-05-10. Retrieved 2017-08-28.
58. Maffly, Brian (September 1, 2015). "Utah Lake carp census gauges whether evictions-by-the-ton are succeeding". The Salt Lake Tribune. Archived from the original on April 29, 2017. Retrieved May 22, 2017.
59. Cyprinus carpio (Linnaeus) Archived 2007-09-28 at the Wayback Machine on Living Landscapes, from the Royal British Columbia Museum
60. Roy, K., Vrba, J., Kaushik, S.J. and Mraz, J. (2020), Feed‐based common carp farming and eutrophication: is there a reason for concern?. Rev Aquacult. doi:10.1111/raq.12407
61. FAO FishStat (2017) Fisheries and Aquaculture Software. FishStat Plus – Universal Software for Fishery Statistical Time Series. FAO Fisheries and Aquaculture Department [online], Rome. Updated 14 September 2017. [Cited 20 Apr 2018.] Available from URL: http://www.fao.org/fishery/
62. Roy, Koushik; Vrba, Jaroslav; Kaushik, Sadasivam J.; Mraz, Jan (October 2020). "Nutrient footprint and ecosystem services of carp production in European fishponds in contrast to EU crop and livestock sectors". Journal of Cleaner Production. 270: 122268. Bibcode:2020JCPro.27022268R. doi:10.1016/j.jclepro.2020.122268. hdl:10553/73571.
63. Daily Yomiuri newspaper, September 19, 2008
64. David Batten: An Introduction to Carp Fishing, p. 24
65. HRDINOVÁ, Radka. The tradition of carp with salad is not even a hundred years old. What was eaten for Christmas before?. iHNed.cz . 23/12/2011.
66. Lis Raabe: Alte Weihnachtsbräuche aus deutschsprachigen Ländern. Heyne, München 1984
67. Falsche Fish. In: Gil Marks: Encyclopedia of Jewish Food. John Wiley & Sons, Hoboken NJ 2010, p. 185.
68. Archived July 23, 2011, at the Wayback Machine
69. Archived January 2, 2015, at the Wayback Machine
70. "Arsik Recipe (Spiced Carp with Torch Ginger and Andaliman - Mandailing Style) » Indonesia Eats". 2020-10-17. Archived from the original on 2020-10-17. Retrieved 2024-05-31.{{cite web}}: CS1 maint: bot: original URL status unknown (link)

External links

• Cyprinus carpio Arkive
• Photos of Common carp on Sealife Collection
• Carp herpesvirus - Managing Water Ecosystems - CSIRO
• Carp Fishingeye - information about Mirror carp fishing
• Galleries of Mirror & Common carp & UK carp fishing venues
• Photographs of Mirror carp caught at fishing venue in France
• The British Record Mirror Carp