CATDOLL : CATDOLL: Ornamental fish, leather carp, mirror carp, leather carp, three scales are the same? How to distinguish, just want originality, that is, German carp

1. Ornamental fish, leather carp, mirror carp, leather carp, are the three scales the same? How to distinguish, just originality, that is, German carp

1. Different shape characteristics

The leather carp has a relatively thick body, is laterally flattened, has a bulge behind the back of the head, and has no scales.

Mirror carp has a stout body, flattened sides, a bulge behind the head and back, a small head, large eyes, and large scales on the body surface arranged along the edges. There is a complete row of scales from the front end of the dorsal fin to the head, and a row of symmetrical continuous and complete scales on each side of the dorsal fin. There are scales at the base of each fin, and some individuals have a few scales on the lateral line.

There is no carp species called carp.

Three scales generally refer to mirror carp.

Leather Carp:

2. Different strains

The German carp, through hybridization with the Japanese koi, produces German gold, German red and white, autumn green and other German carp varieties.

Mirror carp can be divided into scattered-scale mirror carp, strip-shaped mirror carp and frame-shaped mirror carp.

Mirror Carp:

Additional information:

Growth habits of mirror carp:

Primary freshwater fish. Strong adaptability, mostly inhabiting the middle and lower layers of water, mainly in nutrient-rich waters, sandy bottom waters, and rarely in flowing waters. Has the habit of swimming in groups. Omnivorous fish, mainly feeding on small invertebrates and benthic animals.

Economic value of mirror carp:

Mirror carp has few scales, fast growth, high meat content and good meat quality. It has been approved by the China Aquatic Breeding Approval Committee as a fine aquatic breeding variety suitable for promotion in China. Under reasonable stocking density and better feeding conditions, mirror carp grows very fast. In Heilongjiang Province (production period of 120 days), it can be bred into fish of 150 grams in the same year, and the size of 2-year-old commercial fish can reach more than 1 kilogram.

The survival rate of the fish is about 98%, and the wintering maturity rate is 96%. Under the same breeding density of German mirror carp and other carp, the growth rate of mirror carp is higher than that of other carp.

Reference source: Baidu Encyclopedia - Mirror Carp

Baidu Encyclopedia - Leather Carp

Strictly speaking, Germany does not produce koi. German carp is only for food, and only a few have been improved into carp with fewer or no scales.

The hybridization of leather carp with Japanese koi has produced koi of the leather carp strains such as German gold, German red and white, and autumn green.

The authentic German carp is the mirror carp, which has only two rows of coarse scales on its back and flanks, so it has a higher ornamental value.

The completely scaleless carp has a lower ornamental value.

As for the three-scale scales, there are regular large scales scattered between the dorsal and ventral scales. The whole body is covered with such irregular large scales, also known as iron-armored carp. This kind of carp has no ornamental value no matter how beautiful its shape and color are. It is generally introduced as an edible fish

Mirror carp has three scales.

Others are from Baidu Encyclopedia.

1. Leather carp is a variant of German carp. Its skin is like leather, with no scales or only one row of scales along the dorsal fin. It is edible and grows strong. The offspring of the hybrid with Japanese light yellow koi is the most famous autumn green koi.

2. Mirror carp is also a variant of German carp. Its skin is shiny, as smooth as a mirror and has obvious luster. Therefore, it is called mirror carp. There are a few large scales on its lateral line, back and abdomen. The famous one is golden carp, which is the hybrid offspring of mirror carp and Japanese koi.

3. The pigment of armored carp is mostly gray-black, and its ornamental value is relatively low. It is mostly cultivated as edible fish and is gradually being eliminated among ornamental fish.

4. Irregular scale German carp: It is a hybrid of German carp and other carps. The most notable feature of the hybrid is that the spots are uneven, but from an appreciation point of view, it has a messy beauty. The fish body is pale with yellow, red, white and other patterns.

Famous German koi hybrids include German Peacock Koi, German Golden Koi, German Yamabuki Koi, German Yellow Pine Knot Koi, Yellow Autumn Water Koi, German Platinum Koi and German Tricolor (the best koi among German koi hybrids). A common feature of these hybrid koi is that most of them retain some of the luster of rough scales.

2. What are the advantages of breeding and viewing koi as ornamental fish?

Koi has a slender body shape, bright colors, smooth patterns and graceful posture, making it a fish species with great ornamental value. It is known as a "living gem in the water" and a "swimming work of art".

According to the difference in scales, koi can be divided into two categories, namely, ordinary scale type and scaleless or less scale type. Scaleless or less scale type koi is called German system koi, which is a breed bred by hybridizing scaleless leather carp and less scale mirror carp introduced from Germany with koi.

According to the color of the stripes, koi can be divided into three categories, namely, single-color type, such as golden koi, two-color type, such as red and white koi, writing koi, etc., and three-color type, such as Taisho three-color koi, Showa three-color koi, etc. The body color of koi mainly includes sky blue, silver gray, bright red, golden yellow, light yellow, milky white and five-color, etc. Based on various characteristics, koi are generally divided into 13 categories, and each category is divided into many varieties according to the different body colors and stripes of koi. The most highly evaluated varieties are red and white, Taisho three-color and Showa three-color koi.

3. What is the ornamental value of koi?

Brocarded carp, also known as red carp, belongs to the family Cyprinidae in biological taxonomy and is a freshwater fish native to subtropical and temperate regions. It is an ornamental fish that evolved from wild edible carp. It is named for its bright colors and ever-changing patterns. It is a noble ornamental fish. It has unique charm, bright body color, graceful swimming posture, and vigorous and heroic demeanor, and is increasingly loved by fish lovers.

4. The ornamental value of Chinese koi

Koi is a noble large ornamental fish. With its colorful and bright colors, ever-changing patterns, strong and muscular body, and lively and steady swimming posture, it has won the title of "King of Ornamental Fish". In addition, Japanese fish lovers praise the beauty of Koi as "living gem in the water" and "national fish". It was Mr. Koshihara Komei, president of Nagoya Women's University, who called it "living gem in the water", and it was Mr. Miyahideo of Ojiya City who called it "national fish" at the first All-Japan Comprehensive Koi Appreciation Conference held in Tokyo in December 1968.

The ancestor of Koi is the common edible carp. The origin of carp is Pis in Central Asia, and later it was introduced to Japan via China and Korea. In Japan, it was modified into Koi for ornamental purposes, so Koi can be said to be a purely Japanese work of art. Early Koi were called "color carp", "flower carp", "look-alike carp", "mutant carp", etc. Because the words "color" and "flower" were considered by the Japanese to have too ambiguous and weak connotations, they were not suitable for the current situation during World War II, so they were renamed "Koi". Now, all carp with colors and patterns for people to appreciate are called Koi.

The most representative varieties of koi are "Red and White", "Taisho Three Colors" and "Showa Three Colors", commonly known as "Gosanke". Other varieties such as golden carp, German carp, red carp and other variants can be called koi. Among the types of koi, there are German system koi such as "German Red and White", "German Three Colors" or "Autumn Green" and "Kikusui". Therefore, Germany, which is often misunderstood, also produces ornamental koi. In fact, German carp is only for food, and only a few have been improved to have fewer or no scales. The original species is black. The Japanese mated this German carp with Japanese koi to produce German ornamental carp, so the German koi is also a masterpiece of the Japanese.

The earliest koi in the world appeared between 1804 and 1829 AD, which means that koi has a history of nearly 200 years. At that time, among the edible carps raised in the mountains of Niigata Prefecture, Japan, it was found that some mutated carps had colors. After they were improved into koi such as red carp, light yellow carp, and beikuo, they gradually became appreciated by people. By 1830, there were records of koi being sold at high prices. Later, after further improvements, yellow writing was produced during the Meiji period, and six types of koi were produced during the Taisho period, including white writing, Abe carp, Taisho Sanshoku, Sanshoku, and Kohaku. Until the Showa period, Showa Sanshoku, various silver scales, golden carp, and various types of leather carp were produced.

German carp is loved by people because of the pattern formed by its coarse scales and the bright colors presented on its scaleless skin. In fact, the authentic German carp is the mirror carp, which has only two rows of coarse scales on the back and flank, so it has a higher ornamental value. The leather carp, which is completely scaleless, has a lower ornamental value. The large scales that are regularly scattered between the dorsal and ventral scales are called scales, and good ornamental carp should not have such scales. The carp covered with such irregular large scales is called iron armored carp, and this carp has no ornamental value no matter how beautiful its shape and color are. The origin of koi is the twenty villages of Yamakoshi Village and Uonuma Village near Naka Ward, Niigata Prefecture, Japan, which have now become part of Ojiya City. From October to December every year, koi enthusiasts from all over the world gather here, one to buy their favorite koi, and the other to pay homage to the world-famous "birthplace of koi".