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Koi Fish
or more specifically , are colored varieties of the Amur carp ('' Cyprinus rubrofuscus'') that are kept for decorative purposes in outdoor koi ponds or water gardens. Koi is an informal name for the colored variants of ''C. rubrofuscus'' kept for ornamental purposes. There are many varieties of ornamental koi, originating from breeding that began in Niigata, Japan in the early 19th century.Japanese Ornamental Koi Carp: Origin, Variation and Genetics
May 2015

/ref> Several varieties are recognized by the Japanese, distinguished by ...
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Bernard Germain De Lacépède
Bernard-Germain-Étienne de La Ville-sur-Illon, comte de Lacépède or La Cépède (; 26 December 17566 October 1825) was a French naturalist and an active freemason. He is known for his contribution to the Comte de Buffon's great work, the '' Histoire Naturelle''. Biography Lacépède was born at Agen in Guienne. His education was carefully conducted by his father, and the early perusal of Buffon's Natural History ('' Histoire naturelle, générale et particulière'') awakened his interest in that branch of study, which absorbed his chief attention. His leisure he devoted to music, in which, besides becoming a good performer on the piano and organ, he acquired considerable mastery of composition, two of his operas (which were never published) meeting with the high approval of Gluck; in 1781–1785 he also brought out in two volumes his ''Poétique de la musique''. Meantime he wrote two treatises, ''Essai sur l'électricité'' (1781) and ''Physique générale et particuliè ...
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Coldwater Fish
Coldwater fish can have different meanings in different contexts. In the context of aquariums, it refers to fish species that do not require a heater to remain within tolerable temperatures in a typical indoor aquarium. However, most or all ornamental fish species are able to tolerate temperatures as low as or lower than room temperature, with most stenothermic tropical species having critical thermal minimums of around 10-12 °C. Although these fish are capable of surviving in unheated aquaria, their temperature preferences may vary. For example, koi, goldfish, and pond loaches are commonly considered to be cold-water fish because of their ability to survive at very low temperatures, but their temperature preferences and/or physiological optimal temperatures are 32 °C (90 °F), 24-31 °C (75-88 °F), and 26-28 °C (79-82 °F), respectively. Because many of the ornamental fish considered to be “coldwater fish” are more accurately eurytherm ...
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Yamakoshi, Niigata
was a village located in Koshi District, Niigata Prefecture, Japan. As of 2003, the village had an estimated population of 2,035 and a density of 51.09 persons per km². The total area was 39.83 km². On April 1, 2005, Yamakoshi, along with the town of Oguni (from Kariwa District), the town of Nakanoshima (from Minamikanbara District), and the towns of Koshiji and Mishima (both from Santō District), was merged into the expanded city of Nagaoka. On October 23, 2004, Yamakoshi was hit by the 2004 Chūetsu earthquake. Transportation Highway * * Local attractions * Bullfighting( :ja:牛の角突き) * Rice Terraces Bullfighting in Yamakoshi, Nagaoka 04.jpg, Bullfighting Nagaoka Koi Show 05.jpg, Koi in Yamakoshi See also * 2004 Chūetsu earthquake The occurred in Niigata Prefecture, Japan, at 17:56 local time (08:56 UTC) on Saturday, October 23, 2004. The Japan Meteorological Agency (JMA) named it the .
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Ojiya, Niigata
is a city located in Niigata Prefecture, Japan. , the city had an estimated population of 34,704 in 12,758 households, and a population density of 224 persons per km². The total area of the city was . Geography Ojiya is located in an inland region of central Niigata Prefecture at the southern end of the Echigo Plain. The Shinano River flows through the city. The area has very heavy snow in winter. Surrounding municipalities *Niigata Prefecture ** Nagaoka ** Uonuma ** Tokamachi Climate Ojiya has a Humid climate (Köppen ''Cfa'') characterized by warm, wet summers and cold winters with heavy snowfall. The average annual temperature in Ojiya is 12.6 °C. The average annual rainfall is 2263 mm with September as the wettest month. The temperatures are highest on average in August, at around 25.8 °C, and lowest in January, at around 0.5 °C. Demographics Per Japanese census data, the population of Ojiya has declined over the past 40 years. Government Oj ...
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Aquaculture
Aquaculture (less commonly spelled aquiculture), also known as aquafarming, is the controlled cultivation ("farming") of aquatic organisms such as fish, crustaceans, mollusks, algae and other organisms of value such as aquatic plants (e.g. lotus). Aquaculture involves cultivating freshwater, brackish water and saltwater populations under controlled or semi-natural conditions, and can be contrasted with commercial fishing, which is the harvesting of wild fish. Mariculture, commonly known as marine farming, refers specifically to aquaculture practiced in seawater habitats and lagoons, opposed to in freshwater aquaculture. Pisciculture is a type of aquaculture that consists of fish farming to obtain fish products as food. Aquaculture can also be defined as the breeding, growing, and harvesting of fish and other aquatic plants, also known as farming in water. It is an environmental source of food and commercial product which help to improve healthier habitats and used to re ...
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East Asia
East Asia is the eastern region of Asia, which is defined in both Geography, geographical and culture, ethno-cultural terms. The modern State (polity), states of East Asia include China, Japan, Mongolia, North Korea, South Korea, and Taiwan. China, North Korea, South Korea and Taiwan are all unrecognised by at least one other East Asian state due to severe ongoing War, political tensions in the region, specifically the division of Korea and the political status of Taiwan. Hong Kong and Macau, two small coastal Dependent territory, quasi-dependent territories located in the south of China, are officially highly autonomous but are under Chinese sovereignty. Economy of Japan, Japan, Economy of Taiwan, Taiwan, Economy of South Korea, South Korea, Economy of China, Mainland China, Economy of Hong Kong, Hong Kong, and Economy of Macau, Macau are among the world's largest and most prosperous economies. East Asia borders Siberia and the Russian Far East to the north, Southeast Asia to ...
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Species Complex
In biology, a species complex is a group of closely related organisms that are so similar in appearance and other features that the boundaries between them are often unclear. The taxa in the complex may be able to hybridize readily with each other, further blurring any distinctions. Terms that are sometimes used synonymously but have more precise meanings are cryptic species for two or more species hidden under one species name, sibling species for two (or more) species that are each other's closest relative, and species flock for a group of closely related species that live in the same habitat. As informal taxonomic ranks, species group, species aggregate, macrospecies, and superspecies are also in use. Two or more taxa that were once considered conspecific (of the same species) may later be subdivided into infraspecific taxa (taxa within a species, such as bacterial strains or plant varieties), that is complex but it is not a species complex. A species complex is in most ca ...
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Goldfish
The goldfish (''Carassius auratus'') is a freshwater fish in the family Cyprinidae of order Cypriniformes. It is commonly kept as a pet in indoor aquariums, and is one of the most popular aquarium fish. Goldfish released into the wild have become an invasive pest in parts of North America. Native to East Asia, the goldfish is a relatively small member of the carp family (which also includes the Prussian carp and the crucian carp). It was first selectively bred for color in imperial China more than 1,000 years ago, and several distinct breeds have since been developed. Goldfish breeds vary greatly in size, body shape, fin configuration, and coloration (various combinations of white, yellow, orange, red, brown, and black are known). History Various species of carp (collectively known as Asian carp) have been bred and reared as food fish for thousands of years in East Asia. Some of these normally gray or silver species have a tendency to produce red, orange or yellow co ...
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Selective Breeding
Selective breeding (also called artificial selection) is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits (characteristics) by choosing which typically animal or plant males and females will sexually reproduce and have offspring together. Domesticated animals are known as breeds, normally bred by a professional breeder, while domesticated plants are known as varieties, cultigens, cultivars, or breeds. Two purebred animals of different breeds produce a crossbreed, and crossbred plants are called hybrids. Flowers, vegetables and fruit-trees may be bred by amateurs and commercial or non-commercial professionals: major crops are usually the provenance of the professionals. In animal breeding, techniques such as inbreeding, linebreeding, and outcrossing are utilized. In plant breeding, similar methods are used. Charles Darwin discussed how selective breeding had been successful in producing change o ...
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Soga No Umako
was the son of Soga no Iname and a member of the powerful Soga clan of Japan. Umako conducted political reforms with Prince Shōtoku during the rules of Emperor Bidatsu and Empress Suiko and established the Soga clan's stronghold in the government by having his daughters married to members of the imperial family. In the late 6th century, Soga no Umako went to great lengths to promote Buddhism in Japan, and was instrumental in its acceptance. At that time, the Soga clan employed immigrants from China and Korea, and worked to obtain advanced technology and other knowledge. In 587, Umako defeated Mononobe no Moriya in the Battle of Shigisan, securing Soga dominance. On January 15, 593, relics of Buddha Shakyamuni were deposited inside the foundation stone under the pillar of a pagoda at Asuka-dera , also known as , is a Buddhist temple in Asuka, Nara. Asuka-dera is regarded as one of the oldest temples in Japan. Temple complex A number of records refer to the origin o ...
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Emperor Suiko
(554 – 15 April 628) was the 33rd monarch of Japan,Imperial Household Agency (''Kunaichō'') 推古天皇 (33)/ref> according to the traditional order of succession. Suiko reigned from 593 until her death in 628. In the history of Japan, Suiko was the first of eight women to take on the role of empress regnant. The seven female sovereigns reigning after Suiko were Kōgyoku/Saimei, Jitō, Genmei, Genshō, Kōken/Shōtoku, Meishō and Go-Sakuramachi. Traditional narrative Before her ascension to the Chrysanthemum Throne, her personal name (her ''imina'') was Mikekashiya-hime-no-mikoto, also called Toyomike Kashikiya hime no Mikoto. Empress Suiko had several names including Princess Nukatabe and (possibly posthumous) Toyomike Kashikiya. She was a daughter of Emperor Sushun. Her mother was Soga no Iname's daughter, Soga no Kitashihime. Suiko was the younger sister of Emperor Yōmei. Life Empress Suiko was a consort to her half-brother, Emperor Bidatsu, but after Bid ...
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Mino Province
was a province of Japan in the area of Japan that is today southern Gifu Prefecture. Mino was bordered by Ōmi to the west, Echizen and Hida to the north, and Shinano to the east, and Ise, Mikawa, and Owari to the south. Its abbreviated form name was . Under the '' Engishiki'' classification system, Mino was ranked as one of the 13 "great countries" (大国) in terms of importance, and one of the "near countries" (近国) in terms of distance from the capital. The provincial capital and ''ichinomiya'' were located in what is now the town of Tarui. Historical record "Mino" is an ancient place name, and appears in '' mokkan'' wooden tags from the ruins of Asuka-kyō, Fujiwara-kyō, and other ancient sites, but using the ''kanji'' "三野国". Per the '' Kujiki'', there were originally three separate countries in Mino, centered around what is now Ōgaki, Ōno, and Kakamigahara. Each had its own '' Kuni no miyatsuko'', and together with Motosu (in eastern Gifu) and ...
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