There is a fish called Seven Stars in the Northeast, what kind of fish is this? Is it a seven sta

When I was a child, I was most afraid of encountering this when I caught fish, and it was much more scary than this in the loop, ugly and terrible, and it sucked blood.

It's almost impossible to see it now, it turns out to be very common, it will bite and suck blood when taking a bath, and it will be sucked up when you get close to it with a thick branch, so it's safe to catch it.

I just caught a bunch of them.

The scientific name of the seven-star fish is the moon fish, commonly known as the seven star fish, the star fish, the flower star fish, the grouper, the scale fish, the male fish, the caiyu, the black fish, etc. (the name varies from place to place) belongs to the class of bony fish, perciformes, snakehead, and moonfish. According to incomplete statistics, there are about 30 species of fish in this family, and there are 8 species of Chinese snakehead. There are three kinds of snakehead, snakehead, and spotted snakehead.

The above three types have different differences in terms of morphology, characteristics, geographical distribution, etc. The head of the seven-star fish is large, the snout is short, the mouth is wide, the nasal tube is thick, the body is covered with medium-sized round scales, the eyes are medium-large, the interocular septum is wide and convex, the dorsal and anal fins are long, and the thorax and caudal fins are rounded.

**From the web.

The body shape of the seven-star fish is a snakehead, long cylindrical shape, and the main difference from the snakehead is that the seven-star fish has no pelvic fin, and the lateral line is broken above the beginning of the anal fin. There is a black round patch with a white edge on each side of the base of the tail fin of the seven-star fish, the head and back of the body are greenish-brown or gray-black, the abdomen is gray-white or light yellow, there are 7-10 "<" shaped gray markings along the middle of the body side, the whole body is evenly distributed gray-white with small spots, and the spots are more shiny in the male fish during the reproductive season.

Its main traits are: dorsal fin 44-47, anal fin 28-31, lateral line scale 53-59, lateral line scale 20-21, posterior lateral line scale 31-33, body length is twice the body height, twice the head length.

**From the web.

Moonhead is mainly found in southern China. There are more mountain streams in the middle and upper reaches of various river systems in Guangdong and various water systems in Hainan Island, and they are also distributed in Guangxi, Anhui, Hubei, Jiangxi, Fujian, Yunnan and Hunan. Artificial aquaculture has only begun to be promoted in recent years, and it has been accepted by people, and it is an important export aquatic product in China.

Living EnvironmentQixingyu is a bottom-dwelling fish that lives in rivers, lakes, ponds, ditches, and streams with abundant aquatic plants. The seven-star fish likes to be dark, and it is nocturnal during the day, lurking in the aquatic grass or burrows during the day, and coming out at night to forage for food. On rainy days or in flowing water ditches, the seven-star fish jumps out of the water, and under the impact of flowing water, it will go up against the current and flee to other places, so it is necessary to do a good job of preventing escape.

The seven-star fish has a strong ability to adapt to the environment, can breathe air with the help of the gill cavity, is resistant to hypoxia, has a strong ability to drill and jump, and can move forward by swinging its body on the wet grass to find a new and good water source. As long as it is kept moist, it will not die if it is dehydrated for a few hours of transport.

The common name is different in different places, and the seven-star fish does not necessarily refer to a single species. (The following are all referred to as "Seven Star Fish").

Lamprey family Petromyzontidae Lamprey genus Lethenteron jawless vertebrate fish-like animals.

The figure below is shownlamprey lampetra japonicum, commonly known as eight-eyed eel, seven-star (seven-star fish).

The lamprey fossil was found, which is 100 million years old, before the appearance of dinosaurs. Therefore, lampreys are called "living fossils", which are of great significance for the study of biological evolution.

It is distributed in the waters of the Arctic Ocean, including the Bering Sea, the coast of North Korea, the North Pacific Ocean off the coast of Japan, and the freshwater waters of Canada, Mongolia and Northeast China.

Channidae Channa fish.

The figure below is shownChanna Asiatica, commonly known as seven-star fish, fish, dumb, stupid fish, grouper, seven-star fish, point fish, mountain flower fish, perch.

The <> head is large and broadly flattened, the snout is short and round and blunt, the mouth is large, and the nasal tube is thick and extends forward over the upper lip. The scales are large, and the scales on the top of the head are enlarged but irregular;The cephalad scales are also larger. dorsal and anal fin basal elongations;Both pectoral and caudal fins are rounded;Pelvic fins absent.

The body is black or even grayish-black, and the abdomen is grayish-white. There are 2 black longitudinal bands on the cephalad side of the back of the eyes, extending to the operculum and bending towards the base of the pectoral finsThere are 7-9 "herringbone" transverse bands on the lateral side of the body with the tip forward;The base of the caudal fin has 1 black eye-like spot, perispecular bead or 1 circle of bead with hail highlights;The whole body is covered with bead-colored highlights, and the dorsal and anal fins each have multiple rows of bead-colored highlights, especially in males.

Cyprinidae [fish bone] is a hemibarbus fish.

The picture below shows the hemibarbus maculatus (flower carp), commonly known as hemp carp, hemp spearfish, big drum eye, jigou fish, and flower chicken.

<> suitable for braised or stewed tofu food, the taste is acceptable.

I guess it's a species of goldfish, or a tropical fish.

There is no picture should not be divided into genus and species, the common name is different in different places, and the seven-star fish does not necessarily refer to a single species.

Lamprey family Petromyzontidae Lamprey genus Lethenteron jawless vertebrate fish-like animals.

The figure below is shownlamprey lampetra japonicum, commonly known as eight-eyed eel, seven-star (seven-star fish).

The lamprey that was discovered turned into Wu Zhongshi has a history of 100 million years, before the dinosaurs came out of the orange Zheng Xian. Therefore, lampreys are called "living fossils", which are of great significance for the study of biological evolution.

It is distributed in the waters of the Arctic Ocean, including the Bering Sea, the coast of North Korea, the North Pacific Ocean off the coast of Japan, and the freshwater waters of Canada, Mongolia and Northeast China.

Zhanjiang City, Guangdong Province, the breeding and promotion of seven-star fish has been more than ten years. As early as the end of the 80s of the 20th century, Wang You, a young farmer from Shapo Village, a township attached to Suixi County, with the support of the city's fishery department, took the lead in hatching and breeding seven-star fish fry in the province using the wild seven-star fish he caught, which led to the development of the seven-star fish breeding industry in Zhanjiang and even the surrounding Guangxi, Hainan, Maoming and other places. Before 1997, due to the small number of farmers, limited products, the market is in short supply, commercial fish ** as high as more than 70 yuan per catty, the general farmers have relatively rich profits, some even profit 7 times 8 times.

In this case, in a short period of time, many farmers have raised seven-star fish, but many of them have a half-understanding of the characteristics of seven-star fish and the know-how of breeding, blindly launched, coupled with the poor quality of fish fry produced by many units and farmers, in 1997 Before 1998, among the seven-star fish farmers in Zhanjiang, the successful profit, the farmer and the failure to lose money accounted for 1 3, and after 1998, there were more people who lost money. At the same time, due to the large number of people in breeding, the production is relatively increased, the commercial fish are smaller, and they have fallen again and again, and in 2001 each kilogram has fallen to 14 yuan 16 yuan, which is only equivalent to 20 in 199 7 years, and the high efficiency of raising seven-star fish in the past no longer exists. In this regard, through visits to farmers and comprehensive market conditions, the author puts forward the following insights and.

First, market demand and trend. Most of the commercial fish of seven-star fish are sold to Hong Kong and Macao. It is reported that the demand for seven-star fish in the Hong Kong and Macao markets has not changed much, and its specifications are required to be as small as 150 grams, and the weight is more than 250 grams.

As a result, many dealers define the size as more than 150 grams, and the number of commercial fish that reaches a larger size is relatively small, so the export price is relatively stable. Due to the fact that there are fewer people raising seven-star fish at present, and there are relatively few products, it is unlikely that it will continue to decline, and it may rebound slightly.

Second, the breeding method is still profitable. After a survey of dozens of farmers raising seven-star fish in Zhanjiang City (region), it is estimated that the current cost of raising 1 kilogram of seven-star fish (weighing more than 150 grams) is about 10 yuan, which is about 70 yuan of the local selling price. Its profit margins are comparable to those of farmed mid-to-high-end fish, but much higher than those of conventional species that are farmed and marketed.

But the key is to really master the breeding technology. Only if the breeding method is correct, it is profitable.

In addition, it is necessary to select and raise good breeds. There are two different forms of seven-star fish"Type": One is that the fish has many bright green spots, and the fish body is shorter and fatter.

The distribution family is macro in Guangxi, Hubei and other places; The other body color markings are very obvious, the fish body is longer, and it looks thinner, and it is distributed in the western part of Guangdong. For the former type of seven-star fish, the Hong Kong and Macao markets are more welcome, and the price is also higher.