This article is about the ornamental fish. Several koi invasive species worksheet pdf around in a pond in Japan. Several varieties are recognized by the Japanese.
Koi varieties are distinguished by coloration, patterning, and scalation. Some of the major colors are white, black, red, yellow, blue, and cream. Natural color mutations of these carp would have occurred across all populations. From that time, interest in koi spread throughout Japan. The hobby of keeping koi eventually spread worldwide.
Koi are now sold in many pet aquarium shops, with higher-quality fish available from specialist dealers. The collection of koi throughout the years has become quite the social hobby for many who have ponds. It is also common for hobbyists who are passionate about their koi to join a club specifically for their koi and ponds. Members tend to share their knowledge of the fish with others and even help each other out when they are in need of help with their koi. It includes both the dull grey fish and the brightly colored varieties.
West Asian population and the East Asian population, with koi belonging in the latter. DNA suggesting that koi are close to the Southeast Asian carp, but not necessarily the Chinese. While the possible colors are virtually limitless, breeders have identified and named a number of specific categories. New koi varieties are still being actively developed.
Ogon koi, and are distinguished by their metallic scales. 1980s, are notable for their long and flowing fins. In America, the name is often abbreviated to just “Sanke”. In America, the name is often abbreviated to just “Showa”. Famous for its docile, friendly personality and large size, it is considered a sign of good luck among koi keepers.