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Among fish, there are three types of fish with eyes on one side of the body: flounder, flounder, and sole. Flounder and flounder are very similar in appearance, and people call the one with two eyes on the left side and the one on the right side as the flounder. Northerners call them partial mouthfish according to their physical characteristics.
The people of Jiangsu and Zhejiang call them flounder.
In ancient times, people believed that the eyes of flounder and flounder were arranged on the left and right, a female and a male of a fish, this kind of fish swim in pairs, and the eyes of the husband and wife observe the movement on one side, symbolizing the noble sentiment of harmony and love, working together and never separating, so there is a good story of "phoenix amphibious fish flounder".
Hours grow up normally.
However, flounders (such as partial mouth and drum eye) are not born like this. Newborn they are completely different from their parents, their eyes are symmetrical on the sides of their heads, and they live in the pelagic layer of sea water. When it grows to about 2-4 cm, the flounder suddenly changes its lifestyle, it begins to swim sideways and prefers to lie on the bottom of the sea for a longer time.
Over time, the flounder's sandy eye changes, and the soft band under the eye grows and begins to move slowly upwards, and finally joins the upper eye, at this time, the eye that moves upwards generates an orbital bone, and never moves again. As a result, the strange appearance of the eyes on one side was formed, and the ** color on the upper side gradually darkened.
Since then, the strangely shaped flounder has begun its life lurking at the bottom of the sea. They move forward with their sideways flattened bodies and tails, and often come out at night to poach food, mostly starfish and other small animals.
How to distinguish between a deviated mouth and a tympanic eye.
1.Body shape. The body of the partial mouth is slender and looks thin; The tympanic eye body tends to be rounded and looks thick.
2.Scale. The scales of the drum-eyed fish are small and can hardly be touched by hand; The scales of the partial mouth are larger.
3.Eye. The eye of the partial mouth grows on the left side of the body; The eye of the drumeye fish grows on the right side of the body.
In fact, these two kinds of fish have a common name: flounder. Partial mouth fish is also known as flounder, is a kind of flounder, we have more contact with turbot, is commonly known as turbot.
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Drum eye fish is also called partial mouth fish or flounder, the body of this fish is flattened, both eyes are on one side of the body, usually lie flat on the bottom of the sea, usually take the small fish and shrimp in the ocean as the main food, and come out at night to find food, the nutritional value of this fish is particularly high, and has excellent health effects, and has great benefits for maintaining human health.
Usually people eat more drum-eye fish, which can effectively delay the occurrence of a variety of aging symptoms, because the fish meat of drum-eye fish must not be rich in protein and a variety of trace elements, but also contains some natural lecithin and collagen, which can not only nourish the skin, but also increase the elasticity, can reduce wrinkles and spots, and can keep people young.
It contains trace elements selenium and unsaturated fatty acids, which can promote the decomposition and metabolism of cholesterol in the human body, and can prevent vascular aging, increase blood vessel elasticity, and effectively promote blood circulation.
Drum-eye fish is usually the most suitable for those teenagers who are in the growth and development period to eat, because the fish meat of this fish is rich in "brain **", this substance can promote intellectual development, can also improve memory, and has great benefits for maintaining human brain function.
In addition, eating more drum-eye fish can also improve the body's immunity, and can also nourish qi and blood, it can effectively prevent anemia and hypoglycemia, arteriosclerosis and heart disease and other common diseases, which has great benefits for improving human health.
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The scientific name of bigeye is bigeye seabream. Bigeye sea bream, also known as bigeye fish, bigeye lotus and redeye silver carp, is a kind of bony fish of the phylum chordates, its appearance is characterized by a slightly longer and flattened body, a larger head, a short snout, large eyes, a large mouth, small and conical teeth, small and rough scales, the same shape as the dorsal fin and anal fin, short pectoral fin, and long pelvic fin.
What is the scientific name of the bigeye
The species of bigeye extends farther, it belongs to the vertebrate subphylum under the phylum chordates, belongs to the radial-fin subclass in the class of bony fishes, belongs to the suborder of perch in the order of perch, and is the bigeye species under the genus Bigeye under the family Bigeye bream.
The reason for the big eyes of bigeye fish is related to their living environment, generally living in water depths of 500 2000 meters fish will have larger eyes, this is because the light there is weak, the eyes are not big enough to see things.
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It's a deep-sea fish.
Drum eye fish is also called partial mouth fish or flounder, the body of this fish is flattened, both eyes are on one side of the body, usually lie flat on the bottom of the sea, usually take the small fish and shrimp in the ocean as the main food, and come out at night to find food, the nutritional value of this fish is particularly high, and has excellent health effects, and has great benefits for maintaining human health.
Habits of drum-eyed fish
All adult flounders are bottomfish, but their eggs contain oil droplets that float near the surface. The eggs hatch after a few days, and the hatchlings are symmetrical, with two eyes on one side of the head and a mouth on the midline of the abdomen, further suggesting that they evolved from perciformes.
When the juveniles grow to about 1 centimeter long, they undergo a deformation that has a huge impact on the symmetrical skull, eventually forming the asymmetrical flounder we see. The whole change begins with one eye moving to the other side of the fish's head, which is done by resorption of cartilage strips on the skull.
Similarly, the nostrils also move to the side with 2 eyes or to the side with color. With the exception of mandarins, the mouths of flatfish of other families also move to the same plane as their eyes. The form of eye movement is also typical of some special families.
Fish such as turbot and flounder are called "left-eyed flounders" because their right eye usually moves, so the colored side of the body facing up is the left side. Plaice fish are "right-eyed flounders" because their left eye usually moves and ends up facing up with its right side. In the family Silk, the number of flounder in the right and left eyes is the same.
When these significant changes occur, the juveniles sink to the bottom of the sea. Flounders do not have swim bladders, so they keep lying on the bottom of the sea with their eyes facing down or close to the bottom of the sea all the time. Adult flounders vary in body shape – the European halibut and its relatives are almost equal in width and length, while the tongue sole (linguistic sole) is long and narrow.
Usually flounder buries themselves by striking the sand or by meandering the body of the body, leaving only the eyes and upper gill cover exposed. The gill cavity is connected to the outside world by a special channel, water is drawn from the mouth through the gill cover, and exhaled water is expelled through a special channel in the gill cavity on the buried side.
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The scientific name of bigeye is bigeye seabream. Bigeye is a species of fish in the family Bigeye in the family Bigeye snapper. The whole is red, with yellow spots between the dorsal, anal and pelvic fins.
It is a warm-water demersal fish that usually inhabits sedimentary seas. Swim slowly, do not make long-distance migrations. The food is mainly long-tailed, copepods and telepods.
Most are 120 160 mm long, and some can reach 250 mm.
Bigeye bream: The body is oblong and flattened. The mouth is large, and the mouth is sloping or nearly vertical.
The eyes are larger, with a diameter of about 1 2 of the head length. The maxilla is broad, and the two jaws, vomer, and palatal bones all have villous teeth. The anterior operculum is finely serrated and has strong spines at the corners.
Common ones are long-tailed bigeye tails and short-tailed bigeye tails, with the former having fins like crescents and the latter having truncated fins.
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The scientific name of bigeye is bigeye seabream. Bigeye is a fish of the genus Bigeye in the family Bigeye in the family Bigeye Snapper. The whole is red, with yellow spots between the dorsal, anal and pelvic fins.
It is a warm-water demersal fish that usually inhabits sedimentary seas. Swim slowly, do not make long-distance migrations. The food is mainly long-tailed, copepods and telepods.
Most are 120 160 mm long, and some can reach 250 mm. <
The scientific name of bigeye is bigeye seabream. Bigeye is a closed fish of the family Bigeye in the family Bigeye Snapper. The whole is red, with yellow spots between the dorsal, anal and pelvic fins.
It is a warm-water demersal fish that usually inhabits sedimentary seas. Swim slowly, do not make long-distance migrations. The food is mainly long-tailed, copepods and telepods.
Most are 120 160 mm long, and some can reach 250 mm.
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