Grass carp

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Grass carp
Ctenopharyngodon idella 01 Pengo.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Subfamily: Squaliobarbinae
Genus: Ctenopharyngodon
Steindachner, 1866
Species:
C. idella
Binomial name
Ctenopharyngodon idella
(Valenciennes in Cuvier & Valenciennes, 1844)
Synonyms
  • Leuciscus idellaValenciennes, 1844
  • Ctenopharingodon idellus(Valenciennes, 1844)
  • Ctenopharyngodon idellus(Valenciennes, 1844)
  • Leuciscus tschiliensisBasilewsky, 1855
  • Ctenopharyngodon laticeps Steindachner, 1866
  • Sarcocheilichthys teretiusculus Kner, 1867
  • Pristiodon siemionovii Dybowski, 1877
2x amur bily.jpg
Adult grass carp
Grass-Carp1web.jpg
Juvenile grass carp

The grass carp (Ctenopharyngodon idella) is a species of large herbivorous freshwater fish in the family Cyprinidae, native to the Pacific Far East, with a native range stretching from northern Vietnam to the Amur River on the Sino-Russian border. [2] This Asian carp is the only species of the genus Ctenopharyngodon.

Contents

Grass carp are resident fish of large turbid rivers and associated floodplain lakes/wetlands with a wide range of temperature tolerance, and spawn at temperatures of 20 to 30 °C (68 to 86 °F). [2] [3] It has been cultivated as a food fish in China for centuries, being known as one of the Four Domestic Fish (四大家鱼), but was later introduced to Europe and the United States for aquatic weed control, becoming the fish species with the largest reported farmed production globally, over five million tonnes per year. [4]

Appearance and anatomy

Grass carp have elongated, chubby, torpedo-shaped body forms. The terminal mouth is slightly oblique with non-fleshy, firm lips, and no barbels. [5] The complete lateral line contains 40 to 42 scales. Broad, ridged pharyngeal teeth are arranged in a "2, 4-4, 2" formula. The dorsal fin has eight to 10 soft rays, and the anal fin is set closer to the tail than most cyprinids. Body color is dark olive, shading to brownish-yellow on the sides, with a white belly and large, slightly outlined scales.

Grass carp grow very rapidly. Young fish stocked in the spring at 20 cm (7.9 in) will reach over 45 cm (18 in) by fall. The typical length is about 60–100 cm (23.5–39.5 in). The maximum length is 2.0 m (6.6 ft) and they grow to 45 kg (99 lb).

Ecology

Grass carp inhabit lakes, ponds, pools and backwaters of large rivers, preferring large, slow-flowing or standing water bodies with abundant vegetation. [5] In the wild, grass carp spawn in fast-moving rivers, and their eggs, which are slightly heavier than water, develop while drifting downstream, kept in suspension by turbulence. Grass carp require long rivers for the survival of the eggs and very young fish, and the eggs are thought to die if they sink to the bottom. [6]

Adult grass carps feed primarily on aquatic plants, both higher aquatic plants and submerged terrestrial vegetation, but may also eat detritus, insects and other invertebrates. [2] [5] They eat up to three times their own body weight daily, and thrive in small lakes and backwaters that provide an abundant supply of vegetation.[ citation needed ]

According to one study, grass carp live 5-9 years, with the oldest surviving 11 years. In Silver Lake, Washington, a thriving population of grass carp is passing the 15-year mark. [7]

Introduced species

Grass carp have been introduced to many countries around the world. In the Northern Hemisphere, countries and territories of introduction include Japan, the Philippines, Malaysia, India, Pakistan, Iran, Israel, the United States, Mexico, Sweden, Denmark, the United Kingdom, France, Germany, the Netherlands, Switzerland, Italy, Poland, the Czech Republic, Slovakia, Romania, Croatia, Slovenia, Serbia, Montenegro, Bosnia and Herzegovina and Macedonia. In the Southern Hemisphere, they have been introduced to Argentina, Venezuela, Australia, New Zealand, Fiji and South Africa. Grass carp are known to have spawned and established self-reproducing populations in only six of the many larger Northern Hemisphere rivers into which they have been stocked. Their failure to establish populations in other rivers suggests they have quite specific reproductive requirements. [8]

In the United States, the species was first imported in 1963 from Taiwan and Malaysia to aquaculture facilities in Alabama and Arkansas. [9] The first release is believed to have been an accidental escape in 1966 from the U.S. Fish and Wildlife Service's Fish Farming Experimental Station in Stuttgart, Arkansas, followed by planned introductions beginning in 1969. [9] [10] Subsequently, authorized, illegal and accidental introductions have been widespread; by the 1970s, the species had been introduced to 40 states, and it has since been reported in 45 of the country's 50 states. [9] [10] In 2013, it was determined to be reproducing in the Great Lakes Basin. [11] It is still stocked in many states as an effective biocontrol for undesirable aquatic vegetation, [9] [10] many species of which are themselves introduced.

Use

Weed control

Grass carp were introduced into New Zealand in 1966 to control the growth of aquatic plants. Unlike the other introduced fish brought to New Zealand, the potential value and impact of grass carp was investigated in secure facilities prior to their use in field trials. [12] They are now approved by the New Zealand government for aquatic weed control, although each instance requires specific authorization. [13] In the Netherlands, the species was also introduced in 1973 to control over-abundant aquatic weeds. The release was controlled and regulated by the Dutch Ministry of Agriculture, Nature, and Food Quality. In both of these countries, control is made easier because grass carp are very unlikely to naturally reproduce because of their very specific breeding requirements, [13] but elsewhere, control is obtained by the use of sterile, triploid fish. [10] [14]

Food

Grass carp is one of the most common freshwater farmed fish in China, being one of the Four Domestic Fish (四大家鱼) alongside the Black carp, Silver carp, and Bighead carp. Its meat is tender, while with little bone. Many Chinese cuisine has grass carp as a featured dish, such as Cantonese cuisine. [15] In some Asian countries, it is believed that ingestion of raw bile or entire gall bladders of the grass carp may improve visual acuity and health. However, it may in fact cause severe poisoning. [16]

Fishing for grass carp

A grass carp caught on monofilament fishing line Grass carp 1.jpg
A grass carp caught on monofilament fishing line

Grass carp grow large and are strong fighters when hooked on a line, but because of their vegetarian habits and their wariness, they can be difficult to catch via angling. [17] The IGFA World record for a grass carp caught on line and hook is 39.75 kg (87.6 lb), caught in Bulgaria in 2009. [18] The fish are also popular sport fish in areas where bowfishing is legal.

Where grass carp populations are maintained through stocking as a biocontrol for noxious weeds, fishermen are typically asked to return any caught to the water alive and unharmed.

Related Research Articles

<span class="mw-page-title-main">Cyprinidae</span> Family of freshwater fish

Cyprinidae is a family of freshwater fish commonly called the carp or minnow family, including the carps, the true minnows, and their relatives the barbs and barbels, among others. Cyprinidae is the largest and most diverse fish family, and the largest vertebrate animal family overall, with about 3,000 species; only 1,270 of these remain extant, divided into about 200 valid genera. Cyprinids range from about 12 mm (0.5 in) in size to the 3 m (9.8 ft) giant barb. By genus and species count, the family makes up more than two-thirds of the ostariophysian order Cypriniformes. The family name is derived from the Greek word kyprînos.

<span class="mw-page-title-main">Carp</span> Various species of cyprinid fishes

The term carp is a generic common name for numerous species of freshwater fish from the family Cyprinidae, a very large clade of ray-finned fish mostly native to Eurasia. While carp are prized quarries and are valued as both food and ornamental fish in many parts of the Old World, they are considered trash fish and invasive pests in many parts of Africa, Australia and most of the United States.

<span class="mw-page-title-main">Eurasian carp</span> Species of fish

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

<span class="mw-page-title-main">Asian carp</span> Common name for several species of fish

Several species of heavy-bodied cyprinid fishes are collectively known in the United States as Asian carp. Cyprinids from the Indian subcontinent—for example, catla and mrigal —are not included in this classification and are known collectively as "Indian carp". Asian carp are considered invasive species in the United States. In June, 2022, the EPA funded initiative to rebrand Asian Carp as Copi was announced. The new name — Copi — is a part of the Federal and multi-state campaign to reintroduce the carps to the public as a healthy and responsible seafood option in order to decrease its numbers in U.S. waterways.

<span class="mw-page-title-main">Black carp</span> Species of fish

The black carp or Chinese black roach is a species of cyprinid freshwater fish and the sole extant species of the genus Mylopharyngodon. It is native to lakes and rivers in East Asia, ranging from the Amur Basin across China to Vietnam. One of the largest cyprinids in the world, the black carp has a typical length of 60–120 cm (23.5–47 in), though it can reach up to 1.9 m in length and 109 kg (240 lb) in weight. It is carnivorous and generally feeds on invertebrates such as snails, clams and mussels.

<span class="mw-page-title-main">Bighead carp</span> Species of fish

The bighead carp is a species of cyprinid freshwater fish native to East Asia, and is one of several Asian carps introduced into North America. It is one of the most intensively exploited fishes in fish farming, with an annual worldwide production of over three million tonnes in 2013, principally from China. Unlike the omnivorous common carp, bighead carp are primarily filter-feeding algae eaters, preferentially consuming zooplankton but also phytoplankton and detritus.

<span class="mw-page-title-main">Silver carp</span> Species of fish

The silver carp is a species of freshwater cyprinid fish, a variety of Asian carp native to China and eastern Siberia, from the Amur River drainage in the north to the Xi Jiang River drainage in the south. Although a threatened species in its natural habitat, it has long been cultivated in China as one of the "Four Famous Domestic Fish" (四大家鱼) together with Bighead carp, Black carp and Grass carp. By weight, more silver carp are produced worldwide in aquaculture than any other species of fish except for the grass carp. Silver carp are usually farmed in polyculture with other Asian carp, or sometimes with catla or other fish species.

<i>Myriophyllum spicatum</i> Species of flowering plant in the family Haloragaceae

Myriophyllum spicatum is a submerged aquatic plant which grows in still or slow-moving water. It is native to Europe, Asia, and North Africa, but has a wide geographic and climatic distribution among some 57 countries, extending from northern Canada to South Africa. It is considered to be a highly invasive species.

<span class="mw-page-title-main">Fishing industry in Laos</span>

The fishing industry in the land-locked country of Laos is a major source of sustenance and food security to its people dwelling near rivers, reservoirs and ponds. Apart from wild capture fisheries, which is a major component of fish production, aquaculture and stocking are significant developments in the country. Historically, fishing activity was recorded in writings on the gate and walls of the Wat Xieng Thong in Luang Prabang dated 1560. For many Laotians, freshwater fish are the principal source of protein. The percentage of people involved in regular fishing activity is very small, only near major rivers or reservoirs, as for most of the fishers it is a part-time activity.

<span class="mw-page-title-main">Carp fishing</span>

Carp is a common name for various species of freshwater fish from the family Cyprinidae that are native to Eurasia and sought after by some recreational fishermen. Certain carp species have been introduced, with mixed results, to various other locations around the world, and even declared invasive in certain regions.

<span class="mw-page-title-main">Aquaculture in China</span>

China, with one-fifth of the world's population, accounts for two-thirds of the world's reported aquaculture production.

Boskop Dam is an earth-fill type dam on the Mooi River, near Potchefstroom, North West Province, South Africa. It was constructed in 1959. The main purpose of the dam is for irrigation and domestic usage. Its hazard potential is ranked as high, due to poor maintenance and the development of sink holes.

<span class="mw-page-title-main">Ponchatoula Creek</span> Main waterway that flows through Hammond

Ponchatoula Creek is a 26.1-mile-long (42.0 km) tributary of the Natalbany River in Tangipahoa Parish, Louisiana. The two waterways join where a section of the Natalbany forms the boundary between Tangipahoa Parish and Livingston Parish. Ponchatoula Creek originates west of Old US Highway 51, 1 mile (1.6 km) north of Independence. The creek is entirely within Tangipahoa Parish.

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

The popeye shiner is a North American species of freshwater cyprinid fish.

<i>Cirrhinus molitorella</i> Species of fish

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<span class="mw-page-title-main">Aquatic invasive species in Canada</span>

Canadian aquatic invasive species are all forms of life that traditionally has not been native to Canada's waterways. In Eastern Canada, non-native plant and animal species are a concern to biologists. Bringing non-native species such as invasive fishes into Canada can damage the environment and ecosystem by repressing native species due to food competition or preying. Invasive fishes enter the fresh waters of Canada in several ways including drifting, deliberate introduction, accidental release, experimental purposes and, most commonly, through the attachment on international boat hulls. Invasive species are the second biggest threat to fish and other marine life in Canada behind loss of habitat and degradation. The threat to native species is primarily caused by impacts on the food web; however, invasive species also bring dangerous pathogens and physically interfere with existing aquatic life. Invasive species include sea lampreys, zebra mussels, smallmouth bass, European green crab, vase tunicate, and sea squirts.

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

Squaliobarbinae is a small subfamily of the carp and minnow family, Cyprinidae, which consists of three monotypic genera which have their natural distributions in eastern Asia. Two species, the grass carp and the black carp, have been introduced to other parts of the world for weed control and aquaculture. They are large cyprinids characterised by an enlarged subtemporal fossa, the palate articulating with the supraethmoid, an enlarged intercalar bone in the cranial vault, and a divided levator posterior muscle.

References

  1. Bogutskaya, N. (2022). "Ctenopharyngodon idella". IUCN Red List of Threatened Species . 2022: e.T61295A3102796. doi: 10.2305/IUCN.UK.2022-1.RLTS.T61295A3102796.en . Retrieved 21 August 2023.
  2. 1 2 3 Mandrak and Cudmore. 2004. Biological Synopsis of Grass Carp (Ctenopharyngodon idella) Archived 2011-07-06 at the Wayback Machine .
  3. Shireman, J.V. and C.R. Smith. 1983. Synopsis of biological data on the grass carp, Ctenopharyngodon idella (Cuvier and Valentines, 1844). Food and Aquaculture Organization Synopsis. 135: 86pp.
  4. World aquaculture production of fish, crustaceans, mollusks, etc., by principal species in 2013 FAO Yearbook of Fisheries Statistics 2014
  5. 1 2 3 Froese, Rainer; Pauly, Daniel (eds.) (2007). "Ctenopharyngodon idella" in FishBase . May 2007 version.
  6. Krykhtin, M.L., and E.I. Gorbach. 1981. Reproductive ecology of the grass carp, Ctenopharyngodon idella, and the silver carp, Hypophthalmichthys molitrix, in the Amur Basin. Journal of Ichthyology 21(2):109-123.
  7. Kirk and Socha. Longevity and Persistence of Triploid Grass Carp Stocked into the Santee Cooper Reservoirs of South Carolina Archived 2011-09-04 at the Wayback Machine . J. Aquat. Plant Manage. 41:2003.
  8. Rowe, D. K., & Schipper, C. M. (1985). An assessment of the impact of grass carp (Ctenopharyngodon Idella) in New Zealand waters. Rotorua N.Z.: Fisheries Research Division, Ministry of Agriculture and Fisheries.
  9. 1 2 3 4 Nico, L.G.; Fuller, P.L.; Schofield, P.J.; Neilson, M.E. (15 March 2012). "Grass Carp (Ctenopharyngodon idella)". Nonindigenous Aquatic Species (NAS) database. Gainesville, FL: United States Geological Survey. Retrieved 12 January 2014.
  10. 1 2 3 4 Canover, G; Simmonds, R; Whalen, M, eds. (November 2007). Management and Control Plan for Bighead, Black, Grass, and Silver Carps in the United States (PDF). Washington, DC: Asian Carp Working Group, Aquatic Nuisance Species Task Force. pp. 21–27. Archived from the original (PDF) on 2020-08-11. Retrieved 2008-12-16.
  11. Chapman, Duane C.; Davis, Jeremiah J.; Jenkins, Jill A.; Kocovsky, Patrick M.; Miner, Jeffrey G.; Farver, John; Jackson, P. Ryan (2013). "First evidence of grass carp recruitment in the Great Lakes Basin". Journal of Great Lakes Research. 39 (4): 547–554. doi:10.1016/j.jglr.2013.09.019. ISSN   0380-1330.
  12. Grass carp in niwa.co.nz.
  13. 1 2 "Grass carp for weed control", DOC
  14. "Triploid Grass Carp Information", texas.gov
  15. "Cantonese Steamed Fish: A 20 Minute Recipe". The Woks of Life. 20 December 2020. Retrieved 3 February 2023.
  16. Cho YD, Yoon YH, Choi SH, Park SM, Kim JY (2013). "Acute hepatitis and acute kidney insufficiency caused by ingestion of raw grass carp gall bladder". Emerg Med Australas. 25 (6): 608–609. doi:10.1111/1742-6723.12137. PMID   22140646.
  17. Catching Grass Carp Archived 2010-05-28 at the Wayback Machine . Missouri Department of Conservation.
  18. "Grass carp", IGFA Online. Retrieved 22 June 2016.