How are the fish in the ocean classified according to the depth of the sea water? And please give some typical names of related fish.

Cold-blooded, spine, gills and fins are the main characteristics that distinguish marine fish from other marine animals. There are more than 25,000 species of marine fish.

Being good at swimming is another important feature of fish Fish swim around in the sea, relaxed and elegant, enviable. People want to live in water like fish. Some fish have wings like birds, which can fly on the water and glide for hundreds of meters. If you have the opportunity to sail to Nansha Islands in China, there will be flocks of flying fish flying on both sides at the bow, just like a carriage walking in a field constantly coaxing flocks of sparrows. Some fish grow bright seven-color patterns and dance gracefully in the sea. Some fish can shine and illuminate themselves in the dark.

Marine fish live in all levels of seawater. Fish living in the middle and upper ocean are the main targets of human fishing. Benthic fish feed on mud on the bottom of the sea, and fishermen's nets are not easy to catch them. Fish in the deep sea floor must be able to withstand great pressure, cold, darkness, food shortage and other harsh environments. Some fish are divided into ocean and inland fresh water areas from birth to death. Eels are thin and long, like snakes, without scales. However, eels are really members of the fish family. Male and female adult eels mate and lay eggs in the sea, and then both die. Salmon (salmon) is the opposite. They lay eggs in the fresh water of rivers and lakes and hatch young fish, and then swim to the ocean to grow. Heilongjiang, Songhua River, Tumen River, Wusuli River and Xingkai Lake in the northeast are all spawning grounds for salmon in the North Pacific.

The reproduction (spawning and rearing), foraging and wintering of marine fish need to pursue suitable seawater temperature environment, and the regular long-distance migration phenomenon is called "migration". The time, route and purpose of fish migration are very regular. Fish migrate in groups, and a large number of adult fish gather together, which is convenient for fishing to get a bumper harvest and form a "fishing season". Therefore, it is very important for fishery production to master the migration law of fish.

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clupeoid

Herring, also known as mackerel, is an important economic fish; Its fish density and individual number are unparalleled. It can be said to be the largest fish in the world. Why can herring breed so much? The reason is that herring is good at adjusting the light, so that fish can smoothly enter various depths of water to catch food.

There are two kinds of herring: one is Atlantic herring living on both sides of the Atlantic Ocean, and the other is Pacific herring distributed on both sides of the northern half of the Pacific Ocean.

The intensive swimming of fresh fish is a very magnificent scene. Two or three days before the herring began to migrate, several large individuals with bright colors opened the way as pioneers, followed by dense schools of fish on the shore. Fishermen can accurately judge the arrival of large groups of fish according to the color of water on the shore, the movement of seawater, the special splash of fish fleeing and the hovering and singing of large groups of seabirds in the sky. At this time, we should immediately go fishing in the net.

Dense herring swarms swim 1-2 days near the coast with a water depth of about 8 meters, and then enter the shallow water with algae to breed. The females lay eggs and the males ovulate. Herring eggs are sticky eggs, fertilized eggs stick to seaweed, and a new life begins. Because the water depth of herring spawning ground is only about l meters, because the fish are too dense, the head and back of the fish above will be exposed to the water. A large amount of semen discharged by the male fish makes the sea water white and gelatinous.

Why do herring migrate so intensively? This is also the result of the long-term external natural environment. Because the gathering of herring is very beneficial to their reproduction and effective protection of larvae, and at the same time, gathering is a collective action, and everyone in Qi Xin works together to facilitate foraging. In addition, clustering also plays an active role in defending against enemy harm. Because herring is densely packed into a large group of fast-moving lines and flickering shapes, the enemy is dazzled and it is difficult to concentrate on a certain fish. Even if the enemy rushed into the school of fish to disperse the dense team, only a few fish were eaten. Therefore, group action plays an extremely important role in the life of herring.

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mandarin fish

Mandarin fish is also called school fish, osmanthus fish, seasonal flower fish, flower-stitched fish and fat grade. It is tall, flat on the side, yellow-brown, with many irregular black spots, brown patches and small spots. Its meat is tender and delicious. As a precious fish, it has always enjoyed a good reputation. From the No.1 Han Tomb in Mawangdui, Changsha, it was found that there was a channel of mandarin fish bones in the funerary objects. Therefore, as early as 2000 years ago at the end of the Western Han Dynasty, it was already the main edible fish.

Siniperca chuatsi is rich in nutrition, and the protein content per 100g edible part is 19.3%, which exceeds the protein content of carp, silver carp and other fish. Siniperca chuatsi contains 00.8% fat,1.2% inorganic salt and 78.7% water, which is often used as a tonic for lying-in women and anemia patients in China. Japanese people who like to eat fish are particularly interested in mandarin fish, which is known as "China's famous fresh fish" and "freshwater mandarin fish". Live mandarin fish are exported to Hong Kong, Macao, Southeast Asia and Japan, creating a very high exchange rate.

Siniperca chuatsi is widely distributed in China. Almost all rivers, lakes and seas are distributed from Guangdong in the south to Heilongjiang in the north, but most of them are in the middle and lower reaches of the Yangtze River.

In particular, mandarin fish in the south of the Yangtze River grow much faster than mandarin fish in the north of the Yangtze River. Mandarin fish like to live in still water or in lakes with slow water and overgrown weeds. When the water temperature drops below 7℃, the activity capacity decreases, and in winter, it often swims to the deep water area of rivers for wintering. The length of Siniperca chuatsi can reach 80 cm, and its weight is more than 10 kg, but 0.5- 1 kg is the most delicious. [page] Swordfish, the fastest swimming marine animal.

Animals living in water swim at different speeds because of their different species and lifestyles. 1967, the Soviet Union (now the Commonwealth of Independent States) published a "speed comparison table of animals in the sea". Among them, whales: porpoises 55 km/h, fin whales 50 km/h, killer whales 65 km/h and sperm whales 22 km/h; Pinpoda: seal 354 Li/h, walrus18-20km/h; Fish: swordfish 130km/h, swordfish 120km/h, flying fish 65km/h, shark 40km/h; Cephalopods: squid 4 km/h, cuttlefish 26 km/h, octopus 15 km/h From this statistical table, swordfish swims fastest.

Why does swordfish swim at such a high speed? It turns out that it has a very typical streamlined body, a smooth body surface, a long and sharp upper jaw, and a strong tail handle can produce great impetus. When it swims fast forward, its long jaw like a spear plays the role of splitting water. Swordfish moves at a high speed of 130 km per hour, and its hard upper jaw can pierce the thick layer of the bottom of the ship!

In the London Museum in England, there is a boat bottom pierced by swordfish "long sword", and the board at the bottom of the boat is 50 cm thick.

Swordfish, also known as swordfish, is named after its flat upper mandible, thick in the middle and thin on both sides, like a sword. But because of its fast speed, such as an arrow leaving the string, it is called swordfish.

The fast swimming shape of swordfish provides a living blueprint for aircraft designers. The designer imitated the shape of swordfish and installed a long "needle" in front of the plane. This long "needle" pierced the "sound barrier" produced in the high-speed progress, so the supersonic plane came out. The appearance of high-speed aircraft is also a great success of bionics.

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A fish full of thorns-Stichopus japonicus

The name itself reflects that scorpions are covered with hard thorns. These spines on jellyfish are evolved from scales, which means that jellyfish scales are movable spines. When the body expands, the spinous process can stand upright and connect with each other to form a continuous deck. These thorns can be used to protect themselves from the enemy.

Usually these thorns are close to the body surface, smooth and flat. As soon as it meets the enemy's injury or interference, the sea water or air will be swallowed up quickly, which will make the body expand rapidly, make the thorns of the whole body stand up and form a ball with burrs. It's belly up, floating on the water, drifting along the current, how dare the enemy touch it! Stichopus japonicus relies on this skill to resist fierce enemies.

When the danger is relieved, the sea water and air swallowed by jellyfish will be spit out again, and the thorny sphere will soon shrink down and return to its original state. At this time, the terrible thorn also fell down and clung to the body, so the stickleback fish slowly went downstream again.

A Thinking Fish —— Sargassum sp.

Among the coral reefs in the South China Sea, there are some fish with flat bodies and degenerated bellies, which are about 20 cm long and look like horse-faced bream (peeled fish). Because they are covered with hard plate-like thick scales, they are called scale bream.

Dryopteris' eyes are born in the center of the back of the body, slightly forward. It seems that the fish head accounts for 1/2 of the whole body. There is a very thick hard spine in front of the first dorsal fin on the back of the body. The surface of this thick spine is covered with granular protrusions, and the bottom of the spine can move back and forth, just like a trigger that a pistol can pull, so fishermen in the South China Sea call them "trigger fish".

There are hard and sharp wedge-shaped teeth in the mouth, which is very suitable for cutting. In addition, its whole body is covered with hard scales, and some kinds of tail stalks have spikes or barbs on both sides. These morphological structures are very beneficial for squid to swim and prey on coral reefs.

Squid feed on spiny sea urchins and starfish that live in coral reefs. Especially the meat of spiny sea urchin, abalone likes to eat best. Spiny sea urchins are covered with thorns more than 30 cm long, and squid eyes are born behind the head far from the mouth. It can be said that this ingenious adaptive feature is the result of long-term natural selection. This adaptability can prevent squid from being stabbed by sea urchins when they prey on them. However, it is not easy for green onions to eat this heavily armed "ball hedgehog", which requires a good brain and a clever way to win.

The spiny sea urchin only has no thorns around its mouth, and its mouth only grows at the bottom, which can be regarded as an "unguarded" area. If you don't come up with a wonderful method, it is impossible to peck with your mouth. Therefore, the intelligent ichthyosaur first sprayed water on the sea urchin with its mouth, so that the long-spined sea urchin turned over under the impact of the current, and the "unguarded" mouth of the sea urchin was exposed to the attack range of the fish's wedge-shaped teeth. [Page]

Cod, a kind of fish covered with treasures.

There are three dorsal fins on the back and a pinch of beard on the mouth, which is a typical cod. In northern China, cod is called "bighead fish" and "bighead fish", while in North Korea, cod is called "Mingtai fish".

Cod is full of treasures. In addition to meat, vitamin B can be extracted from eyeball and cod liver oil can be extracted from liver. Cod liver oil is rich in vitamin A and vitamin D, which can inhibit pulmonary tuberculosis, so people with pulmonary tuberculosis can take cod liver oil for a long time. Its pancreas can extract insulin, and fat can be used to make fat glue. Cod fat gum can treat hemoptysis. Cod bone is roasted, ground into powder and mixed into paste to treat beriberi.

It should be pointed out here that carp liver is one of the important raw materials for making cod liver oil, so it is necessary to introduce the brief history of cod liver oil. Cod liver oil, as a medicine, originated from ancient Inuit (Eskimos) and residents of Greenland and Norway. However, its industrial production was as late as 1847. The original method of making cod liver oil is to put the livers of cod and whales into water, so that cod liver oil and water can be separated automatically, and then skim the floating cod liver oil. 1848, Norway began to use steam heating method. 1880, Japan adopted boiling method, which initiated the production history of Japanese cod liver oil.

Cod is a kind of cold-water migratory fish, which lives in the lower layer of seawater and has strong clustering, especially in the Atlantic Ocean, so the Atlantic Ocean is the "hometown of cod". Cod has brought great wealth to Nordic countries, especially Norway and Iceland. Icelanders call the fishy smell "the smell of money", and Iceland provides 6% fish to foreign markets every year. Today, one in every 10 Icelanders is engaged in fishery production, and their income alone can feed seven Icelanders.

Tuna, a fish whose body temperature is higher than the water temperature.

Tuna is a valuable fish with rich nutrition; In Japan, some countries in Europe and America are very popular. It can be said that tuna is a household name in these countries, just as our people are familiar with large yellow croaker, small yellow croaker and hairtail. In some countries in Europe and America, people compare tuna meat to "sea chicken" or "veal". American-made canned tuna in oil is popular all over the world and is one of the best-selling foods in the world.

Why is the temperature of tuna higher than the surrounding water temperature? It turns out that it has skin, muscles and blood vessels on both sides of its body. After careful study by scientists, the body temperature of tuna is 9℃ higher than the surrounding water temperature. The muscle contraction strength of this tireless fast swimmer is the main reason for their body temperature rise. The powerful muscles on both sides of the tuna spine and a large number of vascular networks on the skin indicate that the metabolism in these parts is particularly strong, so the fish meat of tuna is purple like beef. Among them, hemoglobin is high in content, low in fat and high in protein, so it has high nutritional value.

Tuna can swim very fast, with a speed of 20 nautical miles per hour. Professor Gott once said, "The tuna found off the coast of America today may have bypassed the Cape of Good Hope the night before." You don't have to * * *, but it means you can swim fast.

Tunas are found all over the world, and they are the targets of world marine fishing. In the past, it was mainly produced by the United States and Japan, and the former Soviet Union also actively developed it from 1959. Because tuna fishing grounds all over the Atlantic Ocean, the Indian Ocean and the Pacific Ocean are located in the offshore and offshore areas of some small and medium-sized countries in Latin America, Africa, Asia, Australia and Europe, the more developed tuna fishing is, the more it concerns the interests of many third world countries. In the history of Latin America, the tuna war against the maritime hegemony of great powers is obvious to all. [Page]

Black snapper

People may not be familiar with the mention of black turtle, but as long as they say "black turtle", coastal residents are household names.

This kind of fish is graceful and beautiful in color, and its shiny body has black stripes. Sparus macrocephalus is a famous seafood fish with delicious meat and rich nutrition. Its plump testicles have a special flavor and sweetness, and it is a favorite name in southern China.

There are two kinds of Cargill fish: Cargill and Black Cargill. Red Cargill's scientific name is silk, and black Cargill is black snapper. There is an interesting story about the origin of the name Cargill.

According to legend, Emperor Taizong made an expedition to Li Shimin and came to Dengzhou (now Penglai, Shandong Province). One day, he crossed the sea on an auspicious day to visit Haixian Mountain (now Changshan Island). After tasting the beautiful and delicious fish on the island, he asked the accompanying officials what the name of this fish was. The ministers dared not talk nonsense and bowed and replied, "The name was given by the emperor." Emperor Taizong was overjoyed and thought it was an auspicious day to cross the sea. Tasting fresh fish added luster to the auspicious day, so he named it "Cargill Fish".

Sparus macrocephalus is a benthic fish in shallow sea, which likes to live in shallow sea with sand, mud bottom or rocky reefs, and is distributed along the coast of China. In JIAOZHOU bay near Qingdao, Sparus macrocephalus swims into JIAOZHOU bay from the open sea for reproductive migration from April to May every year, and the parent fish after spawning swims to deep water for wintering. The juvenile black gill fish of that year searched for bait and fattened in Jiaozhou Bay, and did not move into deep water until late autumn for wintering. Therefore, every spring, experienced fishermen will fish in Jiaozhou Bay and catch black snapper.

During the gonad development of Sparus macrocephalus, there is sexual transformation. Young fish are hermaphroditic, and after a differentiation, they can distinguish between males and females when they are about five years old. Generally speaking, young fish are mostly male and old fish are mostly female. The body length of Sparus macrocephalus is generally 12-25 cm, up to 40 cm.

Sparus macrocephalus has strong adaptability, the survival water temperature is 4-35℃, and the optimum water temperature is 18-22℃. At the same time, they don't require high salinity of seawater, and they can survive not only in seawater, but also in salty and fresh water.

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Macular light

Dorsal fin 13, gluteal fin 10, dorsal fin anterior scale 25, lateral line located on the ventral side. The maxilla and mandible have small conical teeth, which are arranged on narrow bands and hip bones. There are several good teeth. The pectoral fin is very wide, and there are L wide yellow oblique bands in the middle of the pectoral fin.

Warm water pelagic fish. He often jumps out of the water and stretches his broad pectoral fins to glide for a distance in the air.

Distributed in warm waters of Indian Ocean and western Pacific Ocean. I was born in Nanhai and Nanhai.

Sawfish with white edge

The quilt is strongly comb-shaped, with lateral scales of 30. There is no long spine in the lower corner of the anterior branchial lid, and the crest of the skull is smooth. The front edges of the fins and ventral fins of Odd Fin are milky white, and there are L crimson spots in the axils of pectoral fin scales.

Warm water fish. Habitat in coral reef waters.

Distributed in tropical waters of Indian Ocean and western Pacific Ocean. I was born in Nanhai.

Forked butterfly fish

The side is flat and high. Kissing time is shorter. Weak body, incomplete lateral line. There are L-shaped black horizontal stripes on the head and several brown vertical stripes along the body side. Stripes are often bifurcated on the back, and the edges of dorsal fin and gluteal fin are black.

Living in a coral reef dish. The body length is l 30 ~ 150 mm, which is relatively common.

Widely distributed in warm waters of tropical Indian Ocean and Pacific Ocean. China lies in the South China Sea.

Mouth fish

The car body is very flat. The kiss is long and tubular. Small mouth, front position. The jaw is shaped like the end of tweezers, forming a straight cleft. Spine height of dorsal fin, 12- 13 knots. The pectoral fin is long and sickle-shaped. The caudal fin was almost truncated.

It is rare to live in coral reef waters. Body length l 30-170 mm.

Distributed in warm waters of tropical Indian Ocean and Pacific Ocean. China lies in the South China Sea. [Page]

Silk butterfly fish

The body is oval and very flat. The kiss is long and conical. There are filiform strips in the fin of dorsal fin, and there are 1 eye points under them which are larger than the eye diameter. There is an L-shaped horizontal belt on the head side passing through the eye diameter. There are 7-8 diagonals on the upper part of the body size and 9- 10 diagonals on the ventral side intersect at right angles. The trailing edge of caudal fin is truncated or slightly convex.

Beautiful little fish living in coral. Body length is 65-145 mm.

Distributed in warm waters of tropical Indian Ocean and Pacific Ocean. China lies in the South China Sea.

Mirror butterfly fish

The dorsal fin has 14 thick and thin fin spines, and the middle fin spines are the longest. The head has a horizontal band slightly narrower than the diameter of the eyes. There is an oval black spot on the side line of the body, and one third of the black spot is located above the side line. The caudal fin is short and wide.

Small warm-water coral fish, generally 60-1.20mm long. Common species on the south bank of Hainan Island in China.

Distributed in the western Pacific. Our country only appears in the South China Sea.

Lattice butterfly fish

The side is flat. Kiss tip, the front end protrudes slightly forward. The body is weakly combed. The scales on the side of the body have dark lines on their edges, which are interconnected into a network. There are 1 black horizontal bands on the head, 1 black vertical bands on the dorsal fin and 1 black horizontal bands on the caudal fin.

One of the beautiful ornamental fish living in coral. About 50 mm long, rare.

Distributed in warm waters of tropical Pacific Ocean. China only exists in the South China Sea.

Butterfly fish with oblique stripes

The side of the body is a flat oval. Big body, incomplete lateral line. Head strap 1 black horizontal strap. The diagonal lines of dark twill before and after the body are inconsistent, with the front inclined upward and the back inclined downward, and the black longitudinal band at the root of dorsal fin is connected with the tail handle band. The caudal fin also has two black horizontal bands.

Beautiful little fish on the coral reef. The body length is 80- 120mm, which is relatively rare.

Distributed in warm waters of tropical Indian Ocean and Pacific Ocean. China lies in the South China Sea.

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Bodhi fish

The body is rectangular. There are 1 rows in the lower jaw, two pairs of big canine teeth in the front and 1 canine teeth in the corners of the mouth. The body surface is covered with round scales, only the cheeks and gill cover of the head have scales, and the edge of the front gill cover has no scales. There are scales and sheaths at the base of dorsal fin and anal fin. Side line complete. Dorsal ganglion 12 multi-segmental spine. Dorsal fin l ~ 4. There are 1 dark blue spots between fin spines and at the end of dorsal fin base.

It is one of warm water and beautiful colors.

Distributed in Indian Ocean, East Coast of Africa and Central Pacific Ocean. China lies in the South China Sea.

Wild mouth fish

Strong body, flat side. The mouth can be elongated forward into a tube, and the mandible can be elongated backward, extending behind the gill cover. The body surface is covered with large round scales, with 2 rows and 3 rows of cheek scales, and the scales at the base of dorsal fin and gluteal fin form well-developed scale sheaths. Prolongation of the second finger of abdominal node. The lateral line is interrupted. This kind of fish often has body color variation.

It is one of the tropical fish that live in coral reef waters. The body length is about150 mm.

Distributed in Indian Ocean and Pacific Ocean. I was born in Nanhai.

White-striped double saw fish

In front of the dorsal branch, there is a milky white broadband extending obliquely downward around the narrow black edge, passing through the posterior edge of the eye and reaching the back of the branchial lid. Warm-water fish, living in coral reef waters, symbiotic with anemones and feeding on small metazoan vertebrates, generally 33 ~ 94 mm in length. Distributed in tropical waters of Indian Ocean and Pacific Ocean. China lies in the South China Sea.

Fox basket fish

The upper and lower contours of the front half head are obviously concave. Kiss the minister and be tubular. There is 1 black broadband from the front of dorsal fin through the eyes to the snout. The chest is black and the rest is yellow.

Small warm-water inshore fish often inhabit rocks and corals in groups. Body length 160- 190 mm, each fin spine has poisonous glands, which will cause severe pain after being stabbed. Distributed in shallow waters in the central tropical Pacific Ocean. China lies in the South China Sea.

Moorish idol

The body is very flat and tall, almost round. The head is short and pointed. The kiss is prominent and tubular. Teeth are thin, pointed and bristle-like. There are L bone spines on the front and upper sides of the eye. There are seven fins on the back. The third fin thorn is slender and filiform. Spikes or bone plates on both sides of the tail stalk.

Small fish in warm waters, usually inhabiting the shallow waters of reef plates. Body length 100 ~ 300mm is relatively rare. Distributed in tropical Indian Ocean and shallow sea in central Pacific Ocean. China lies in the South China Sea.

Striped stickleback

I can't move my teeth. There are 1 anterior spines on both sides of the caudal stalk. The dorsal fin has 9 fins, the spine has 25-28 fins, the gluteal fin has 3 fins and the spine has 26-27 fins. The body is light yellow, and the eyes have many blue-gray stripes. The horizontal band in the second half of caudal fin is the same color as the body band.

Typical coral fish usually inhabit shallow water near the reef plate. Body length160-190 mm is rare. Distributed in tropical Indian Ocean and western Pacific Ocean. China lies in the South China Sea.

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rank poison

Small eyes, back position, deep depression under the eyes. Plough bones and teeth. The dorsal fin spine is covered with thick skin and has a toxic sac at the base. There is no free fin below the pectoral fin.

Warm-water bottom fish often lurk between coastal coral reefs and rocky reefs. The body length is generally 95 ~ 224 mm. Distributed in tropical waters of Indian Ocean and Pacific Ocean. China lies in the South China Sea.

Meikun

There are six rows of knotted thorns on the tail. The healing part of coracoid cartilage is shorter than the separation part. There are more than 40 jaws. The front of the body disk is an oblique square, and the kissing side and the posterior lateral edge of the eye are concave.

It is a small gill at the bottom, usually about 300 mm long. Perched on the sandy bottom of shallow sea. It is often mixed with Kong Shao, the difference is that this species has 1 tail-discharging thorns, and there are more teeth in the upper and lower jaws than milk. Distributed in the western North Pacific. China lies in the Yellow Sea and the East China Sea.

Eyefish

The body is very flat and shaped like a lens. The edge of abdomen is very convex, thin and sharp. The mouth is small and almost vertical. Hip subgrade is long, and fish have 2 spines and 38 ~ 33 fins when they are young. When the fish is big, the thorns are gone, and most of the fins are wrapped under the skin, only the ends are exposed. The abdomen is thin and striped.

Warm water fish. The body length is generally 900 ~ 200 mm. It is a common species in coastal areas of Guangdong.

Distributed in Indian Ocean and Pacific Ocean. I was born in Nanhai and Donghai, China.

swallowtail

Small mouth, prominent kiss. The dorsal fin has a strong fin spine ll report, and the fourth fin spine is the longest. There are three reports that there are strong thorns on the gluteal fin. There is a big round blue dot with white edge in the front and lower part of dorsal fin strip. There are four yellow horizontal bands with blue edges on the side.

Habitat in offshore coral reefs or rocks. Small fish, generally 50 ~ 90 mm in length.

Widely distributed and abundant, it is the most common butterfly species in coastal areas of China. Distributed in the western North Pacific. I was born in Nanhai and Donghai, China.

Ichthyosaurus acutus

There are many annular bands on the side of the body and small blue rings on the shoulders. There are 12 spikes on the dorsal fin. The edge of gill cover is serrated, and there are strong spinous processes at the corners. Abdominal knot and anal fin have strong thorns.

Warm water coral fish. The body length is generally about 300 mm, and it is a large butterfly fish. It can be captured on the south coast of Hainan Island in China.

Distributed in the waters between the Tropic of Cancer and the southern Indian Ocean and the western Pacific Ocean. I was born in Nanhai. [Page]

crucian

The sucker formed by the first dorsal fin of the head and back is long, with 22 ~ 26 pairs of lateral cartilaginous plates. The second dorsal segment is the same length as the base of gluteal fin, with 35 ~ 40 fins. The tail fin of young fish is pointed, and the adult fish gradually becomes concave fork-shaped.

Generally, the body length is 220 ~ 450 mm, and the maximum length is no more than 900 mm Although the swimming ability is poor, it is distributed all over the world. Mainly adsorbed on the abdomen of big sharks or marine animals with strong swimming ability, and sometimes adsorbed on the bottom of ships. It doesn't need to swim by itself, but is taken to the ocean of the world. When it reaches the sea area rich in bait, it leaves the host and eats. Then it will be adsorbed on a new host and continue to move to another sea area.

Widely distributed in tropical, subtropical and temperate waters of the world. It is produced along the coast of China.

right-eyed flounder

Both eyes are on the left side of the head. One side of the eye is dark brown with comb lines; Yuan's eyes are white and covered with round scales. The mouth is big and the cracks on both sides are equal in length. There are 1 row of big teeth in the upper and lower jaws.

Warm-water bottom fish in offshore waters. Larvae eyes are symmetrical, deformed during development, and the right eye turns to the left eye. After the metamorphosis is completed, it sinks to the bottom of the sea, often lying on its side and lurking in the sediment. The body length is generally 250 ~ 500 mm, and the largest is about 700 mm. According to the season, short-distance group tours are carried out. The yield is higher in the Yellow Sea and Bohai Sea. Distributed in the western North Pacific. It is produced along the coast of China.

Wood leaf flounder

Both eyes are on the right side of the head. With brown eyes and dark spots; Yuan's eyes are white. Both sides of the body are covered with small round scales The mouth is small, and the length of cracks on both sides is different. There are no teeth in both jaws on the eye side, and there are 2 ~ 3 rows of fine fangs on the eye side. The eye spacing is narrow, ridged, and there are small thorns before and after. The edge of the anterior branchial lid is hidden under the skin and is not free.

Benthic fish in warm waters. General body length110 ~ 220 mm. The eyes of the larvae are symmetrical. After metamorphosis, the left eye moves to the right and turns to the underwater life. Distributed in the western North Pacific. It is produced along the coast of China. [Page]

Triceratops humpback

The body is covered by a bone shell composed of polygonal scales. The cross section of the body is roughly triangular. The scales in the middle of the back protrude upward to form a peak.

Small warm-water pelagic fish, generally with a body length of100-120mm. Swim slowly, use bone armor for self-defense.

Distributed in Indian Ocean and western Pacific Ocean. China only exists in the South China Sea.

Hairy-walled fish

The side of the body is flat and the abdomen is prominent. Short hair with fine hair. Big head. The branchial foramen is very small and located below the base of the pectoral fin of the arm. The top of the first fin spine of dorsal fin is a spherical spike, forming a kissing tentacle; There is a dimple on the forehead behind the second fin spine. There are seven anal fins. The body and fins have irregular dark twill.

Warm water bottom fish. The body length is generally below 1 10 mm, and the habitat depth can reach 900 meters. Feeding on the spherical spikes at the top of tentacles to trap small fish.

Distributed in Indian Ocean and Pacific Ocean. China only exists in the South China Sea.

Virgin fish

Girl fish. The lips are thick and slightly upturned. The fin spine is shorter than the fin strip, and finally the fin spine is slightly shorter than the first fin strip. There are four brown horizontal bands on the head and side of the body. It is 20 centimeters long. Distribution: South China Sea, Taiwan Province Province, Western Pacific Ocean, Northern Australia.

Four band grooms

The groom of the four bands. Common name: Crown Knife. The spine of the fourth fin of dorsal fin is significantly prolonged and whiplike. There are four-color horizontal bands on the side of the head and body. The dorsal fin and caudal fin are orange. Body length is 25 cm. Distribution: South China Sea, Taiwan Province Province and Japanese waters.

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Two-color false herring

Two-color fish have teeth on their vomeroids and jawbones. The lateral line is interrupted, the upper lateral line is close to the dorsal edge of the body, and the lower lateral line extends to the caudal base. The first half of the body is purple and the second half is yellow. It is five centimeters long. Distribution: Tropical waters of the western Pacific.

White star grouper

The white star grouper has a dark brown body and a white dorsal fin edge. White spots are scattered on the body side, dorsal fin, gluteal fin and caudal fin, but the white spots on the body side are connected into irregular wavy stripes. It is 50 centimeters long. Distribution: tropical waters of South China Sea, Taiwan Province Strait, Red Sea, Indian Ocean and Pacific Ocean.

Tentacle salamander

Carp with big mouth and tentacles. The spines of pectoral fin and dorsal fin are very long, and the fin membrane is deeply split. The pectoral fin membrane is fan-shaped with brown spots. Horizontal stripes, no longitudinal stripes on the tail handle. It is 20 centimeters long. Distribution: tropical waters in the western and central Indian Ocean and Pacific Ocean.

Beat butterfly fish

Common name of whipfish: black-waisted butterfly. The fourth fin of dorsal fin is filiform and slender. There is an oval blue-black spot on the back and upper part of the body. The lower edge of the spot is wide and white, and the back edge is orange. There are 6-7 blue longitudinal bands on the side. It is 20 centimeters long. Distribution: Xisha Islands, Nansha Islands, Taiwan Province Province, tropical Indian Ocean and Pacific Ocean.

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Blue spot butterfly fish

Blue-spotted butterfly fish common name: blue Indian butterfly. The body is yellow, and there is a horizontal belt on the head that passes through the eyes. There are about 20 brown longitudinal lines on the side of the body, and there are blue patches between the longitudinal lines near the lateral lines, which appear with the growth, and there are blue ink spots on the tail stalk, with a body length of 12 cm. Distribution: Tropical waters of South China Sea, Taiwan Province Coast, Indian Ocean and Pacific Ocean.

Black-spotted sea bass

Black-spotted gill sea bass Common name: black-and-white gill bass. The number of pectoral fins is mostly 17. The ends of dorsal fin and gluteal fin are round, and there are six black transverse spots on the head and side of juvenile fish. Adults are brown with tiny blue spots. Body length 15 cm. Distribution: Tropical waters of South China Sea and Western Pacific Ocean.

Black-nosed sea eel

Black-nosed sea eel. Common name: Ma Cai Eel. The front nose of young fish is tubular, and the wall of the tube is membranous with growth. Maxillary and mandibular ends must branch and extend. The body color of young fish is black, and the male fish is sky blue; The female is yellow. Body length1.2m. Distribution: South China Sea, coastal areas of Taiwan Province Province and western Pacific Ocean. The picture shows the black-nosed sea eel (head and tail) in the coral reef.

Sawfish with white edge

Sawfish with white edges are afraid of scales. There is a narrow band of red and black on the back upper edge of branchial lid bone, and there are purple spots on the axils of pectoral fins. The front edges of posterior dorsal fin, gluteal fin, ventral fin and caudal fin are milky white. Body length 15 cm. Distribution: Nansha, Xisha Islands and Taiwan Province Province, East Africa and Central America.

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Trumpet bream

Horn box bream is commonly known as: horn. The head and bulletproof vest are pentagonal, with a pair of anterior orbital spines and a pair of lumbar vertebrae. The caudal fin has purple-blue spots. The bulletproof vest is yellow-green and 56 cm long. Distribution: South China Sea, East China Sea, Yellow Sea, Red Sea, East Africa and Hawaii.

Ichthyosaurus acutus

Crocodile skin with shoulder rings. Common name: white-tailed blue-striped fairy. There is a blue ring on the shoulder. There are 6 blue oblique bands on the side of the body, and many young fish have ring patterns. It is 30 centimeters long. Distribution: South China Sea, coastal areas of Taiwan Province Province, Indian Ocean and tropical western Pacific Ocean.

Black gill spiny fish

Black gill spiny fish There is a sharp thorn on each side of the tail handle. Young fish are purple yellow, and adult fish are dark brown. There are orange spots before and after the orbit. Dense orange dark ripples are around. There is a black band from the upper end of the gill hole through the rear edge of the gill cover to the cheek. It is 20 centimeters long. Distribution: tropical waters of Indian Ocean and tropical waters of central and western Pacific Ocean.

Finishing fish

The custom of tidying up fish