Koi 17459 225573453 2008-07-14T11:08:41Z 78.105.128.134 /* External links and further readings */ {{wiktionary|koi}}{{Taxobox | color = Pink | name = Nishikigoi | status = secure | image = Koi Cyprinus.JPG | image_width = 300px | image_caption = Cyprinus carpio | regnum = [[Animal]]ia | phylum = [[Chordate|Chordata]] | classis = [[Actinopterygii]] | ordo = [[Cypriniformes]] | familia = [[Cyprinidae]] | genus = ''[[Cyprinus]]'' | species = '''''C. carpio''''' | binomial = ''Cyprinus carpio'' | binomial_authority = ([[Carolus Linnaeus|Linnaeus]], 1758) }} {{nihongo|'''Koi'''|鯉|}} ({{IPAEng|kɔɪ}}), or more specifically {{nihongo|'''nishikigoi'''|錦鯉|}} ({{IPA2|niɕikigoi}}, literally "[[brocade (weaving)|brocade]]d carp"), are ornamental domesticated varieties of the [[common carp]] ''Cyprinus carpio''. ==Origins== The common carp is widely believed to have originated from the [[Caspian Sea]] with natural habitat surrounding the [[North Sea|North]], [[Baltic Sea|Baltic]], [[Mediterranean Sea|Mediterranean]], [[Black Sea|Black]], [[Azov Sea|Azov]], Caspian and [[Aral Sea]] basins. The common carp, as a food fish with the ability to survive and adapt to many different climates and waterways, was bartered and spread to many different areas, including [[North America]], [[Africa]], [[Europe]], and [[Asia]]. Wild populations of the common carp now exist in those four continents and [[South America]]. Natural color mutations of these carp would have occurred across all populations. However, earliest records of carp with distinct colors have been found in [[Japan]]. Depictions of carp or 'koi' with different color variations have been found on 18th century Japanese drawings and paintings. The ornamental cultivation of carp originated in the [[Niigata]] region of [[Japan]] during the [[Japan]]ese [[Edo Period]]. ==Etymology== The word "koi" comes from the [[Japanese language|Japanese]], simply meaning "carp." It includes both the dull grey fish and the brightly colored varieties. A [[homophone]] of ''koi'' means "love, affection" and koi are therefore symbols of love and friendship in Japan: a good example is the short story ''Koi-san'' by Mukoda Kuniko. ==History== Koi breeding originated in the 18th century in the [[Niigata prefecture]] of [[Japan]]. Farmers working the [[rice]] fields would notice that some carp were more brightly colored than others, capture them, and raise them. By the 20th century, a number of color patterns had been established, most notably the red-and-white ''Kohaku''. The outside world did not become aware of the degree of development until 1914, when the Niigata koi were exhibited in the annual exposition in [[Tokyo]]. At that point, interest in koi exploded throughout Japan. The hobby of keeping koi spread worldwide after plastic bags and shipping of koi became both fast and safe for the fish. These factors enabled koi to be shipped worldwide with low mortality rates. Koi are now commonly sold in most pet stores, with higher-quality fish available from specialist dealers. Koi varieties are distinguished by coloration, patterning, and scalation. Ghost koi, developed in the 1980s are metallic [[Hybrid (biology)|hybrid]]s of wild carp and Ogon koi and are not considered true Nishikigoi. [[Butterfly koi]], '''Longfin koi''', or '''Dragon Carp''' were also developed in the 1980s and are notable for their long and flowing fins. They are actually hybrids with [[Asian carp]] and, like Ghost koi, are not considered true Nishikigoi. ==Varieties== [[Image:Mango koi.jpg|thumb|right|300px|Koi varieties]] Koi have many different colors. Some of the major colors are white, black, red, yellow, blue, and cream. While possible variations are limitless, breeders have identified and named a number of specific categories. The most popular category is Gosanke. The Gosanke category is made up of the Kohaku, Taisho Sanshoku, and Showa Sanshoku varieties. The Japanese breeders have many generations of knowledge and experience when it comes to breeding and raising Nishikigoi. They know which ones will be worth hundreds of dollars and which ones will be worth thousands of dollars. The major named varieties include: * ''Kohaku'' - a white-skinned Koi, with a red pattern * ''Taisho Sanshoku (Sanke)'' - a white-skinned Koi with a red and black pattern * ''Showa Sanshoku (Showa)'' - a black-skinned Koi with a red and white pattern * ''Tancho'' - Any koi with the only red being in a circle on its forehead. The fish can be a Tancho Showa, Tancho Sanke, or even Tancho Goshiki * ''Asagi'' - a Koi with light blue scales on its top and red scales on its bottom * ''Shusui'' - the partially scaled version of an Asagi * ''Bekko'' - a white, red, or yellow-skinned Koi with a black pattern * ''Utsurimono'' - a black Koi with a red, white, or yellow pattern * ''Goshiki'' - a mostly black Koi with red, white, brown, and blue accents * ''Ogon'' - a Koi that is one solid color, can be regular or metallic; known colors - red, orange, platinum, yellow and cream * ''Kin Gin Rin'' - a Koi with shiny scales. The name translates into English as "Gold Silver Scales" There are also Gin Rin versions of almost any other type of koi. * ''Kawarimono (kawarigoi)'' - Miscellaneous types of Koi * ''Doitsu-goi'' - German Carp * ''Koromo'' - Koi with areas of blue-edged scales aligned neatly * ''Hikari-Moyomono'' - Koi with coloured patterns over a metallic base, and koi in two metallic colours * Ghost koi - "Hybrid" of Ogon and wild carp. Not Nishikigoi. * [[Butterfly koi]] - Long-finned version of all others. Not Nishikigoi. * ''Jinmengyo'' - Due to its facial resemblances to [[marsupials]] (features: prominent brows and nose) or even species-centric point of view of human observers, it is a subject of many blogs (add more). ==Keeping== {{howto}} [[Image:Koi4.jpg|thumb|right|300px|thumb|left|Japanese koi in a backyard pond.]][[Image:Goldfish2.cropped.jpg|thumb|right|300px|A group of several varieties of Koi.]] The common carp is a hardy fish, and koi retain that durability. Koi are cold-water fish, so koi ponds have a meter or more of depth in areas of the world that become warm during the summer. In areas that have harsh winters, ponds that are a minimum of 1.5 meters (4 1/2 feet) are most common. <br clear="left"/> [[Image:Japanese water garden with carp.jpg|thumb|200px|Traditional [[Japanese garden]] with koi.]] Koi's bright colors put them at a severe disadvantage against predators; a white-skinned ''Kohaku'' is a visual dinner bell against the dark green of a pond. [[Heron]]s, [[kingfisher]]s, [[raccoon]]s, [[cat]]s, [[fox]]es, and [[Badger (animal)|badger]]s are all capable of emptying a pond of its fish. A well-designed outdoor pond will have areas too deep for herons to stand in, overhangs high enough above the water that mammals can't reach in, and shade trees overhead to block the view of aerial passers-by. It may prove necessary to string nets or wires above the surface. A pond usually includes a [[pump]] and [[filtration]] system to keep the water clear. Koi are an omnivorous fish and will often eat a wide variety of foods, including peas, lettuce, and watermelons.<REF>[http://www.olympickoiclub.org/aboutkoi.html Olympic Koi, Goldfish & Water Garden Club, "About Koi Fish", 2004] outlines of Koi diet and other Koi information</REF> Koi food is designed not only to be nutritionally balanced, but also to float so as to encourage them to come to the surface. When they are eating, it is possible to check koi for parasites and ulcers. Koi will recognize the person feeding them and gather around him or her at feeding times. They can be trained to take food from one's hand. In the winter, their digestive system slows nearly to a halt, and they eat very little, perhaps no more than nibbles of algae from the bottom. Their appetite will not come back until the water becomes warm in the spring. When the temperature drops below 50 degrees Fahrenheit (10 °C), feeding, particularly with protein, should be halted or the food can go rancid in their stomach, causing sickness. If kept properly, koi can live about 30&ndash;40 years. Some have reportedly lived up to 200 years.<ref>[[Hanako (Koi Fish)]]</ref> ==Culturing== [[Image:Carp.jpg|thumb|right|200px|Koi in Japan]] Like most fish, koi reproduce through spawning in which a female lays a vast number of eggs and one or more males fertilize them. Nurturing the resulting offspring (referred to as "fry") is a tricky and tedious job, usually done only by professionals. Although a koi breeder may carefully select the parents they wish based on their desired characteristics, the resulting fry will nonetheless exhibit a wide range of color and quality. Unlike a purebred dog or cat, even the finest champion-grade koi will produce literally thousands of unacceptable, unrecognizable, or even genetically defective offspring in a single spawning. These (and hundreds of marginal offspring) are culled at various stages based on the breeder's expert eye and closely guarded techniques. Culled fry are usually destroyed (perhaps fed to other fish) and older culls are often sold as lower-grade "pond-quality" koi within their first year (also called "Tosai") at 3"–6" long. The semi-randomized result of the koi's reproductive process is both a blessing and a curse. While it requires diligent oversight to narrow down the favorable result that the breeder wanted all along, it also made possible the gradual transformation of wild river carp into the exquisite art form seen in modern nishikigoi. ==In the wild== Koi have been accidentally or deliberately released into the wild in every continent except [[Antarctica]]. They greatly increase the [[turbidity]] of the water because they are constantly stirring up the substrate. This makes waterways unattractive, reduces the abundance of aquatic plants, and can render the water unsuitable for swimming or drinking even by livestock. In some countries, koi have caused so much damage to waterways that vast amounts of money and effort have been spent trying to eradicate them, largely unsuccessfully. ==Gallery== <gallery> Image:Koi.jpg|Koi in the courtyard of [[City Hall]] in [[St. Augustine, Florida|St. Augustine]], [[Florida]] Image:Six koi.jpg|Six koi (and one goldfish) living in a private pond in [[San Jose, California]] Image:koi1-1.jpg|A sample of Shusui Koi Image:koi2-2.jpg|Sample of Taisho Sanshoku Image:KobeGarden.jpg|Koi in a [[tea garden]] in [[Kyoto]], Japan Image:2_year_old_Aka_Muji.jpg|Aka Muji variety of Koi. Image:2 year old Platina.jpg|Platina variety of Koi. Image:2 year old Yamabuki.jpg|Yamabuki Variety of Koi. Image:4 year old Sanke.jpg|Taisho Sanshoku (Sanke) bred by Momotaro Koi, Japan. Image:6 year old Showa.jpg|Showa variety, Koi show level. Image:Doitsu Kohaku, Doitsu Sanke, Kikusui, Yamatonishiki, Doitsu Kujaku.jpg|Kohaku, Doitsu Sanke, Kikusui, Yamatonishiki, Doitsu Kujaku. Image:Eight year old Kohaku.jpg|Show Class 8 Year Old Kohaku 85 cm. Image:One year old Kinki-Utsuri.jpg|Tosai Kinki-Utsuri. Image:One year old shiro-utsuri.jpg|Tosai Shiro-Utsuri. Image:Show winning Asagi from Nagoshi Fish Farm.jpg|2008 ZNA Prize winning Asagi from Nagoshi Koi Farm, Japan. Image:Two year old Chagoi.jpg|Nisai Chagoi. Image:Two year old Kohaku.jpg|Nisai Kohaku from Yamatoya Fish Farm, Japan. Image:Two year old Mix.jpg|Nisai Mix of various Koi types. Image:KoiDSC00093.JPG|HQ Kohaku </gallery> ==References== <References /> :* {{FishBase_species|genus=Cyprinus|species=carpio|year=2005|month=10}} :* {{cite book | author = [[George C. Blasiola]] | title = Koi: everything about selection, care, nutrition, diseases, breeding, pond design and maintenance, and popular aquatic plants | location= [[Hauppauge, New York]] | publisher=[[Barron's Educational Series]] | year = 1995 | id = ISBN 0-8120-3568-2}} :* {{cite book | author = [[David Twigg]] | title = How to Keep Koi | location= New York | publisher=[[Howell Book House]] | year = 2001 | id = ISBN 0-7645-6242-8}} ==External links and further readings== {{commons|Cyprinus carpio}} * [http://www.zna.jp/ Zen Nippon Airinkai (ZNA) Main Koi Association in Japan] * [http://www.koipedia.com/wiki/ Koi Wiki] * [http://www.gardenpondforum.com/ Koi Fish Forum] * [http://www.cosmosmagazine.com/node/100 Feature article on treating sick fish, especially koi, "Surgery to Scale", ''Cosmos Magazine''] * [http://www.niwascience.co.nz/rc/freshwater/fishatlas/species/koi_carp Koi in the NIWA Atlas] * [http://www.koibito-japan.com/ Koibito-Japan (Nishikigoi Export Company based in Japan)] [[Category:Carp]] [[Category:Cold-water aquarium fish]] [[Category:Introduced freshwater fish of New Zealand]] [[Category:Fish of East Asia]] [[Category:Japanese words and phrases]] [[af:Koi]] [[ar:كوي]] [[de:Koi]] [[es:Cyprinus carpio]] [[fr:Koï]] [[id:Koi]] [[ms:Ikan Koi]] [[nl:Japanse koi]] [[ja:コイ]] [[no:Koi]] [[pl:Karp koi]] [[pt:Koi]] [[ru:Карпы кои]] [[vi:Cá Chép Koi]] [[tr:Koi]] [[uk:Короп кої]] [[zh:锦鲤]]