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Who is found in the Sea of ​​Japan. Sea of ​​Japan, Russia

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MAIN COMMERCIAL FISHES OF THE SEA OF JAPAN AND THEIR HABITAT AREAS

The Sea of ​​Japan is home to the usual set of commercial fish for the Far Eastern seas - flounder, herring, cod, mackerel, smelt.

Among the endemic Pacific cod species, pollock (50-55 cm) lives in the Sea of ​​Japan. Pollock is common in all northern seas of the Pacific Ocean, but this cold-loving fish is not found south of the Korean Peninsula and California. Pollock is the most abundant fish in the Sea of ​​Japan - when in winter and spring pollock comes close to the shore to spawn, the sea literally boils with the abundance of fish. During spawning, pollock fishing is active. In Russia, this fish is not respected; inexpensive pollock, “cat fish”, is more often bought for pets than for the table. Even connoisseurs of everything marine, the Japanese are not very fond of pollock. The undeserved neglect of this fish is more than compensated for by the Koreans, who have elevated pollock to the status of a national dish. Boiled and fried, salted and dried, in the form of delicious soups and sauces, pollock in Korea successfully refutes the reputation of a waste fish. And the most delicate pollock liver is a valuable product, containing large quantities of vitamin A. It is from pollock liver that the famous fish oil is most often produced.

Saury (up to 36 cm) is a fish from the order of garfish, the family of scombridae, another endemic of the Pacific Ocean, forming large accumulations in the Sea of ​​Japan. Saury is one of the most important commercial fish in the Pacific Ocean. Ichthyologists have studied the behavior of saury well and found that, like most garfish, saury are drawn to the light. In the dark, fish swim towards the light source, like moths flocking to the light of a lamp. This feature is used by fishermen. Going out at night to places where saury is supposed to gather, they turn on the spotlights and shine their beams over the surface of the sea. Seeing the light, saury jump high out of the water, giving away their presence. A fishing boat approaches the school and, turning on special lamps on the sides, like on a leash, brings the fish into its nets. commercial fish japanese sea

Unusual eel-tailed catfish from the order Catfish are quite numerous off the coast of Japan. These catfish are completely different from catfish: they keep in schools, are devoid of scales, and the back of their body resembles an eel. Only the “moustached” muzzle bears typical “catfish” features. Eel-tailed catfish have an ancient origin, as evidenced by a number of features, for example the presence of a special hole in the bones of the skull. In ancient animals, behind this hole there was a light-sensitive organ - the “third eye”. Another feature of these catfish is their toxicity. The poison accumulates in the glands and flows down the jagged spines on the dorsal and pectoral fins. A sting from a poisonous thorn causes severe pain and prolonged inflammation.

One of the most amazing and rare sea fish - the herring king - has been encountered more than once in the Sea of ​​Japan. Herring kings, fish from the order Opaciformes, family of strap fish, live at depths of 50 to 700 m and are occasionally found in all oceans. This large and long (5.5-9 m 250 kg) fish was repeatedly found in schools of herring, which it probably feeds on. Its impressive size, iridescent silver strap-like body held vertically in the water, bright red fins and elongated rays of the dorsal fin, forming a kind of crown above the head, gave fishermen a reason to call this miracle the herring king. The second name - belt fish - was given to the king for the shape of his body. Because of their rarity, oar kings are poorly understood and at one time were even thought to be an invention of fishermen, who described the fish as a sparkling sea serpent with a fiery mane. It is only known that the “royal” meat is inedible; even hungry animals refuse it.

Main commercial fish:

· flounder family

· maximum length 100 cm, weight up to 7 kg.

· fishing length 25-40 cm, weight - 500-800 g.

· habitat depth up to 250 meters

· spring spawning

fat content - 1.3-3%

· fishing areas: the coast of Portugal, the Barents, White and Japan seas

herring family

· maximum length 36 cm, weight 450 g.

· fishing length 25-30 cm, 200-300 g.

· habitat depth up to 200 meters

· spring spawning

fat content 4 to 35%

all over the sea

cod family

· maximum length 90 cm, weight 3.35 kg.

· fishing length 40-60 cm, weight 2-3 kg.

· habitat depth 40-200 m

· spawning occurs in the winter-spring period

· body fat 0.1-0.8%

· fishing areas: from the west coast of Korea to Honshu Island

Japanese mackerel:

· mackerel family

· maximum length 50 cm, weight 1.5-1.7 kg.

· fishing length 30 cm, weight 2-3 kg.

· habitat depth 0-300 m

· mackerel spawning: April-July

· body fat: 16.5%

· fishing areas: shores of Japan, Korea, China

· smelt family

· maximum length 35 cm, weight 350 g.

· fishing length 20-30 cm, weight 50-100 g.

· habitat depth 25-30 m

· mackerel spawning: March-May

· body fat: 1.6-3.1%

fishing areas

cod family

· maximum length 91 cm, weight 3.85 kg.

· fishing length 50-55 cm, weight 1.5 kg.

· habitat depth 200-300 m

· spawning mackerel: November-March

· body fat: 0.5-0.9%

· fishing areas: Korean Peninsula and shores of Japan

· mackerel family

· maximum length 40 cm, weight 180 g.

· fishing length 20-30 cm, weight 100 g.

· habitat depth 0-230 m

· mackerel spawning: October-June

body fat: 5.6%

· fishing areas: from Korea and Japan to the Kuril Islands

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In size it is inferior to the sea and, its area is up to 1,062 tons km2, and the deepest depression reaches up to 3,745 m. It is generally accepted that the average depth is 1,535 m. Large depths with a geographical location indicate that the sea belongs to the marginal oceanic seas.

There are medium and small islands in the sea. The most significant of them are Rishiri, Oshima, Sado, Momeron, Russian. Almost all the islands are located along the mainland in the eastern part.

The coastline is slightly indented, the outlines of Sakhalin Island are especially simple. with the Japanese Islands it has a more indented coastline. The main major seaports are Vostochny Port, Wonsan, Kholmsk, Vladivostok, Tsuruga, Chongjin.

Currents of the Sea of ​​Japan

Tides in the Sea of ​​Japan

Tides are expressed differently in different areas of the sea; they are especially pronounced in the summer and reach up to three meters in the Korea Strait. To the north, the tides decrease and do not exceed 1.5 m. This is explained by the fact that the bottom has a funnel shape. The greatest fluctuations are observed in the northern and southern extreme regions of the sea in the summer.

I offer you an interesting video “Parallel World - Sea of ​​Japan” from the “Russian underwater expeditions” series.


1. In South Korea, the Sea of ​​Japan is called the “East Sea”, and in North Korea - the Korean East Sea
2. if there are 180 species of fish in the Black Sea, then in the Sea of ​​Japan there are 603 species of fish
3. There are only 34 orders of fish in the world ocean (not counting deep-sea ones), and in the Sea of ​​Japan, out of 34, representatives of 31 orders live
4. In terms of fish species diversity, the Sea of ​​Japan ranks first among the seas of Russia
5. The tiny hydroid jellyfish, which lives in thickets of sea grass Zoostera in the Sea of ​​Japan, affects the central nervous system, and upon repeated contact, its poison can be fatal to humans

The waters of the Sea of ​​Japan close to the coast range from cold to temperate to tropical. Marine flora and fauna are homogeneous and unusual.

I suggest you look at the marine inhabitants of the Sea of ​​Japan!



1. Hunting for plankton, a school of coral fish crowds near the surface of the water, near the subtropical Bonin Islands in Japan. The water turns turquoise
late, only at noon, until the red rays of the rising sun dissipate and become weaker.

2. A photographer's assistant holds on to a block of ice that can be up to 25 feet thick in winter, covering the waters of the Shiretoko Peninsula. A decade ago, these seas were frozen for about 90 days a year. Today this period is approximately 65 days.

3. Not far from the Izu Peninsula, a yellow goby looks out of the “window” of his “home” - a rusted soda can, proof of the existence of 127 million people living above the surface of the water.

4. Seventy miles southwest of Tokyo, a moray eel glides through branches of soft coral in the cool waters of Suruga Bay. Deep and narrow, the bay drops abruptly to a depth of more than 8,000 feet.

5. If not for its round black eyes, the tiny fish, called the goby, would be almost invisible against the soft coral in the temperate waters of the Izu Peninsula.

6. On a coral reef in the Bonin Islands, an abandoned sea worm burrow is home to a hermit crab. Unlike its more mobile relatives, which scour coral reefs for food, this crab stays inside and hunts plankton with its feathery antennae.

7. Aptly named angelfish, this transparent creature is a snail whose leg has been modified into a pair of floating wings. About one inch long, angelfish are an important food for whales and fish in the cold waters of Japan's northern coast.

8. Here, under the ice, spines meet spines, like an Alaskan king crab, the size of a coin, crawling along a spiny starfish. In a dozen years, the crustacean will grow to the size of a tractor tire.

9. In Suruga Bay, a branch of whip coral provides shelter for two shrimp hiding among the polyps. The smaller male walks with the female in a column formation.

10. The Bonin Islands sand tiger shark is about to give birth. During the nine-month gestation, the two largest cubs will eat their littermates for their own survival. This kind of cannibalism is unique to this species of shark.

11. In the shallow waters of Hokkaido, a sea fox swims along the bottom of shiny volcanic sand on spiny pectoral fins. Only the females of this fish, found in cold waters, have a long nose similar to Pinocchio.

12. Lizardhead caught a fish on the sandy ocean floor in the temperate waters of Suruga Bay. Its mouth and tongue are lined with small, sharp teeth that prevent its prey from escaping.

13. Purple sea squirts pass water through themselves in search of food. They have no scientific name, living in a cave behind a lonely rock on Chichishima Island.

14. A wrasse cleans the metal-plate-like skin of a butterfly slave, whose black and white coloring resembles the colors of the kimono of Japanese samurai.

15. The keen eyes of the Pacific Steller's sea eagle search for reflections of herring scales between the ice floes of the Shiretoko Peninsula.

16. What at first glance appears to be a bunch of tangled cables is actually a forest of deep-sea whip coral in Suruga Bay. Each bank is literally packed with feeding polyps, which send out their tiny tentacles into the currents to catch floating food.

17. The volcanic beach of Toyama Bay glows with blue neon light. The light comes from female firefly squid, which spawn in the spring, then die and wash ashore. Their tentacles glow like millions of greenish-blue LEDs.

The waters of the Sea of ​​Japan close to the coast range from cold to temperate to tropical. Marine flora and fauna are homogeneous and unusual.

We invite you to look at the marine inhabitants of the Sea of ​​Japan!


1. Hunting for plankton, a school of coral fish crowds near the surface of the water, near the subtropical Bonin Islands in Japan. The water turns turquoise
late, only at noon, until the red rays of the rising sun dissipate and become weaker.


2. A photographer's assistant holds on to a block of ice that can be up to 25 feet thick in winter, covering the waters of the Shiretoko Peninsula. A decade ago, these seas were frozen for about 90 days a year. Today this period is approximately 65 days.


3. Not far from the Izu Peninsula, a yellow goby looks out of the “window” of his “home” - a rusted soda can, proof of the existence of 127 million people living above the surface of the water.


4. Seventy miles southwest of Tokyo, a moray eel glides through branches of soft coral in the cool waters of Suruga Bay. Deep and narrow, the bay drops abruptly to a depth of more than 8,000 feet.


5. If not for its round black eyes, the tiny fish, called the goby, would be almost invisible against the soft coral in the temperate waters of the Izu Peninsula.


6. On a coral reef in the Bonin Islands, an abandoned sea worm burrow is home to a hermit crab. Unlike its more mobile relatives, which scour coral reefs for food, this crab stays inside and hunts plankton with its feathery antennae.


7. Aptly named angelfish, this transparent creature is a snail whose leg has been modified into a pair of floating wings. About one inch long, angelfish are an important food for whales and fish in the cold waters of Japan's northern coast.


8. Here, under the ice, spines meet spines, like an Alaskan king crab, the size of a coin, crawling along a spiny starfish. In a dozen years, the crustacean will grow to the size of a tractor tire.


9. In Suruga Bay, a branch of whip coral provides shelter for two shrimp hiding among the polyps. The smaller male walks with the female in a column formation.


10. The Bonin Islands sand tiger shark is about to give birth. During the nine-month gestation, the two largest cubs will eat their littermates for their own survival. This kind of cannibalism is unique to this species of shark.


11. In the shallow waters of Hokkaido, a sea fox swims along the bottom of shiny volcanic sand on spiny pectoral fins. Only the females of this fish, found in cold waters, have a long nose similar to Pinocchio.


12. Lizardhead caught a fish on the sandy ocean floor in the temperate waters of Suruga Bay. Its mouth and tongue are lined with small, sharp teeth that prevent its prey from escaping.


13. Purple sea squirts pass water through themselves in search of food. They have no scientific name, living in a cave behind a lonely rock on Chichishima Island.


14. A wrasse cleans the metal-plate-like skin of a butterfly slave, whose black and white coloring resembles the colors of the kimono of Japanese samurai.


15. The keen eyes of the Pacific Steller's sea eagle search for reflections of herring scales between the ice floes of the Shiretoko Peninsula.

16. What at first glance appears to be a bunch of tangled cables is actually a forest of deep-sea whip coral in Suruga Bay. Each bank is literally packed with feeding polyps, which send out their tiny tentacles into the currents to catch floating food.


17. The volcanic beach of Toyama Bay glows with blue neon light. The light comes from female firefly squid, which spawn in the spring, then die and wash ashore. Their tentacles glow like millions of greenish-blue LEDs.

The southernmost and warmest sea in the Russian Far East.

Area – 980 thousand km2. The total length of the coastline is 7.6 thousand km (about 3 thousand km belongs to Russia). The maximum water temperature is 23 °C (in semi-closed bays 28 °C).

Average depth – 1750 m. Water salinity – 34%. Water transparency is up to 30 m.

The coast of Primorye stretches from south to northeast for more than 1,350 km and is washed by the Sea of ​​Japan, a deep body of water fenced off from the Pacific Ocean and neighboring seas by shallow barriers. The Nevelsk Strait and the La Perouse Strait connect the waters of the Sea of ​​Japan with the northern Sea of ​​Okhotsk. The Sea of ​​Japan is connected to the Pacific Ocean by the Tsigaru (Sangarsky) and Shimonoseki straits, and the Korea Strait is connected to the East China Sea.

In terms of the number of animal and plant species, the Sea of ​​Japan is considered the richest of the Russian seas. In this regard, Peter the Great Bay best demonstrates the diversity of flora and fauna. It contains the cold Primorsky Current, descending from the north, and a branch of the southern Tsushima Current.

The coastline of southern Primorye is heavily indented with an abundance of bays, capes, bays and straits. Due to the wide temperature range, sea conditions in summer are quite suitable for the survival of subtropical fauna, and in winter - for temperate and even arctic fauna. Some animals have adapted to such conditions, while others migrate to these areas for a while.

Flora and fauna

Multi-kilometer areas of the coastal bottom are occupied by thickets of algae and grasses. There are over 225 species of multicellular algae alone in Peter the Great Bay. There is especially a lot of kelp and seaweed, which are not only collected from natural lands, but also bred in large quantities on plantations. Its yields in Primorye are among the highest in the world. Seaweed is used raw and canned for regular and medicinal nutrition. Underwater, the sea grass Phyllospadix grows on rocky soils. Previously, expensive grades of paper were made from it. Zosters can be seen on the muddy, sandy and pebble bottom. Many species of game animals spend their first days in the thickets of these grasses, then settling throughout the vast shallow waters. Phyllospadix and zostera are higher plants. Flowering and pollination occur under water. The flowers, unfortunately, are small and very inconspicuous.

Good divers can admire the sea anemone. These are primitive animals, the closest relatives of corals. The underwater landscape of the bays is also decorated with large, up to 25 cm in height, ascidians. They resemble a two-necked dark red jug.

Among the algae and sea grasses at any time of the year you can find a variety of crustaceans and shrimp. The most famous of them is grass shrimp. The largest representatives reach 18 cm. Young individuals are emerald in color. In winter, shrimp migrate to depths. Primorye is famous for its reserves of sea cucumbers. This is a very popular animal in the countries of the Far East and Southeast Asia, sometimes called sea ginseng. Usually sea cucumber lives on rocky areas, near boulders and in zoster thickets. Moving slowly along the silted sand, with its tentacles it captures soil particles along with the microscopic organisms on them and digests them. It was found that biologically active substances isolated from sea cucumber have a wide range of pharmacological and antifungal effects. Japanese Cucumaria, which lives at greater depths and is widespread in all Far Eastern seas, is very similar to sea cucumber.

Coast of Primorye

Sea stars and urchins are closely systematically related to sea cucumbers. Sandy areas of the bottom, often buried, are inhabited by flat urchins. Their shell is covered with dark purple felt. Round urchins, widespread representatives of the coastal fauna of Primorye, are very prickly. Sea urchin caviar is popular in Asia. There is a significant Japanese-oriented fishery on the coast.

Starfish are common inhabitants of a wide variety of underwater communities. The skeletal plates of stars are made of calcium carbonate and give them their unusual appearance. There are many types of stars in the Sea of ​​Japan. The Amur star reaches 32 cm in the span of its rays. In search of food, it crawls at a speed of 10 cm per second. This predator feeds on even slower or even attached mollusks. Another no less common star, the pathira, is omnivorous. It is found in large quantities after storms along the coastline.


Shore of the Sea of ​​Japan. Primorsky Krai

Of the animals whose adult life is spent in an attached state, the best known are oysters and mussels. Pacific mussels are often found at shallow depths. They are not afraid of the blows of waves or the ebb of tides due to gusts of wind. Special threads hold them firmly to the stone. Only enormous fertility saves oysters and mussels from complete destruction by predatory mollusks, stars and fish. It should be noted that mussels are foulers of ships and hydraulic structures. On the other hand, being biofilters, they make a great contribution to the purification of coastal waters. In deeper places you can find the largest mussels in the world, reaching a length of 20 cm. The age of such individuals can reach 100 years. Mussel meat is tasty and healthy, but in some places at certain times these mollusks can accumulate harmful substances and microorganisms in doses dangerous to humans.

The giant Pacific oyster lives in the Russian Far East, Korea, China and Japan.

It prefers to settle in slightly desalinated waters of bays at a depth of up to 7 m. The mollusk can withstand both wintering under ice and heating by the sun's rays at low tide. The size of its shell can reach 70 cm. In Peter the Great Bay, from the end of June to August, you can watch oysters throwing out muddy clouds. These are eggs. A large female spawns up to 100 million of them. Then they develop and turn into larvae, clearly visible only under a microscope. The larvae swim in the water column and are transported over long distances by currents. After a month, they sink to the bottom, crawl in search of a suitable place to settle and, having found it, are tightly attached to underwater objects.

The most promising fishery and breeding object in the Sea of ​​Japan is the sea scallop. It moves by throwing out water when the valves slam shut.

Kamchatka crab is very famous. The span of its paws can reach 150 cm. It is distributed from the Korean Peninsula to the Bering Strait and along the American coast at depths of up to 270 m. In early April, it approaches the shores to breed. During mating, the male crab firmly holds the female with his claws. Crabs eat small mollusks, crustaceans, worms and other inhabitants of the seabed. The main crab fishery is concentrated off the coast of Western Kamchatka.

Among the inhabitants of the Sea of ​​Japan there are many unusual game animals. These include octopus and squid. One of the largest in the world is the giant octopus. The length of its body is 60 cm, but together with the tentacles, the total length sometimes exceeds three meters. Large individuals weighing about 50 kg live in underwater grottoes, among piles of stones, under rocks. This interesting animal is quite often encountered by scuba divers. Octopuses prey on various crabs, shellfish and fish. With its suction cups, the octopus can stick quite strongly to the skin and especially to the diver’s suit, but there are no reliable cases of long-term retention of underwater swimmers, much less their death. Small octopuses are sometimes found in the empty shells of large mussels. When placed in an aquarium, they release an inky camouflage fluid and quickly change color.

The main marine resource of the region is, of course, fish. There are 872 species of fish in the Sea of ​​Japan, of which 179 are commercial. Along with cold-water species such as cod, saffron cod, pollock, Far Eastern salmon, sculpin gobies, chanterelles, and flounder, many warm-water representatives can also be found off the coast of Primorye in the summer. These are, first of all, sardine-ivasi, mackerel, anchovy, herring, garfish, saury, and half-snout. The listed fish species are quite numerous and visit the shores of Primorye almost every year. Meanwhile, in the waters of the Sea of ​​Japan there are also very exotic aliens from the south - swordfish, pufferfish, saberfish, moonfish and even flying fish. A tropical shade to the fish fauna of the bay is given by the hammerhead shark and wolf herring, red barracuda and hedgehog fish that swim here.

Many exotic-looking fish can be found among the permanent inhabitants of the waters of Primorye. Among the thickets of coastal sea grasses and algae, pipefish and pipits, painted butterfish and noodle fish, butterfly gobies and sea cockerels scurry about. At great depths, among pebble deposits and sand, you can find brightly colored agonomal sea foxes, and three-striped golden ruffes soar majestically inside underwater grottoes and among the rocks.

There are 12 species of sharks in the Primorsky waters of the Sea of ​​Japan. The most common species of shark is the spiny dogfish shark. It is very small and poses a threat only to schools of fish.

Dangerous inhabitants

In Primorye, within the depths accessible to a simple diver, there are no deadly creatures. Large sharks, powerful stingrays, and poisonous sea snakes penetrate from the south in small numbers and not in all years. With climate warming, mass visits of dangerous creatures are possible, but now encounters with them are statistically insignificant. However, you should not touch unfamiliar animals. Even mucus can cause not only skin dermatitis, but also serious burns.

Injections from sea urchin needles can be very painful. The needles often remain under the skin, and if not removed immediately, they become encapsulated and remain in the body for many months. In Primorye there are several species of sea urchins that pose a danger to humans. The globular sea urchin has the longest spines. Usually it does not exceed 8 cm in diameter. The length of its spines reaches 3 cm. It is a widespread representative of the coastal fauna of Primorye. It prefers hard soils with an abundance of algae - its food. Having reached 4 cm, the spherical hedgehog participates in spawning, which lasts from July to September. Accumulations of sea urchins are found at depths of up to 30 m.

Danger for a swimmer can come not only from the bottom of the sea. In the Sea of ​​Japan, there are some large animals that swim and hover in the water, such as jellyfish. The most dangerous is the cross jellyfish. Depending on her age and pulsation phase, her body may have the shape of a dome or an umbrella. Its diameter is usually about 25 mm, but can reach 40 mm. The tentacles along the edge of the umbrella are numerous, thin and 5–7 times larger than the size of the jellyfish itself. Each of them is equipped with a ring sucker near the middle part of the tentacle, and along its entire length it carries stinging cells, the poison of which is dangerous for other animals and humans. Four radial canals extend from the base of the oral process, under which wide folds are formed. They form a cross extending across the entire field of the umbrella. This is why the jellyfish is called a cross. In their natural environment, crosses are hardly noticeable, and this increases the chance of an unexpected encounter with them. A jellyfish burn is extremely painful and incapacitates a person for several days. A specific antidote for the infection of the cross has not yet been found. When swimming, you should avoid sea grass thickets. In case of a burn by a cross, you should immediately go ashore, remove the remains of the jellyfish, rinse the affected area with plenty of fresh water, apply an ice pack, sit in the shade and drink strong coffee or tea. If you feel unwell, contact a poison control center or any medical facility. Treatment usually does not exceed 3–4 days. Cases of death from damage to the cross, contrary to rumors, have not been registered.

Globular sea urchin

Another dangerous jellyfish, Aurelia eared, with a body in the form of an umbrella thickening towards the middle with a diameter of up to 40 cm, is the most common in the waters of the bay. Until recently, this type of jellyfish was considered harmless to humans. However, there have been several cases of fairly severe burns.

Cyanea hairy is the largest known jellyfish in the world. In Peter the Great Bay, an individual with the largest umbrella diameter of 74–76 cm was recorded in October 1997 in Amur Bay. The body shape is an umbrella equipped with powerful muscles, the thickness of which decreases significantly only at the edge. The color of the umbrella is red with a brick or crimson tint, and the muscles are brown or matte with a red or brown tint. The long, thin, very sticky and burning tentacles of the jellyfish are grouped into eight bunches. Descending from the edges of the umbrella, they form an almost continuous curtain around the organs located under it. When floating in the water column, the jellyfish forms a powerful cube- or cylinder-like mass, iridescent with red-brown-crimson colors and carrying a tail of thread-like tentacles. In the waters of southern Primorye, large (30–60 cm) adult specimens are found singly or in small groups, and small ones in spring and early summer are found in aggregations in the form of fields up to hundreds of meters long. If you come into contact with a jellyfish, you can get a short burn, quite comparable to nettle. A large dose of poison from numerous stinging cells is quite capable of causing a very unpleasant multi-hour skin reaction of the entire body and prolonged motor restlessness. First aid consists of removing the remnants of the tentacles and applying cold packs or pieces of ice to the affected areas of the body for 5–15 minutes. In case of eye damage, you should immediately consult an ophthalmologist.

Jellyfish lunch

Ropilema is a large jellyfish with a hemispherical umbrella, the diameter of which in individuals from Peter the Great Bay can reach 50–60 cm. The umbrella is dense, matte, often bright blue or light blue, less often with a brownish tint. Such jellyfish are rarely found in the bay, usually in well-warmed bays. The burn from touching them is very weak, but it should be taken into account that there are people with increased sensitivity, and they may have more serious consequences from contact with ropilema.

Another aggressive and dangerous inhabitant of the waters is the shark. There are 12 species of them in the Primorsky waters of the Sea of ​​Japan. In the open sea, far from the coast, fishermen caught species that were very dangerous to humans, characteristic of southern latitudes. In particularly warm years, it is possible to encounter them near the coast. There is no documented evidence of shark attacks and injuries to humans in the waters of Primorye. The most common shark species in this region is the spiny dogfish shark. It is very small and does not pose a threat to humans.

Pacific white-sided dolphin

Pacific white-sided dolphin

Marine mammals

About 30 species of whales, dolphins and seals are found in the Sea of ​​Japan. Unfortunately, information on many of them is fragmentary. There was no large-scale whaling in the Sea of ​​Japan, but during the Second World War there was local hunting of minke whales in Peter the Great Bay. All species of this family are represented in the Sea of ​​Japan: minke whale, sei whale, fin whale, blue whale, humpback whale, gray whale and southern right whale.

Toothed cetaceans are widespread in the Sea of ​​Japan in a fairly large group: sperm whale, killer whale, little killer whale, white-winged porpoise, Pacific white-sided dolphin, beluga whale, northern swimmer.

Most of the named species may not be found off the coast of Primorye every year. This is probably due to the influence of the warm Tsushima Current and the approach of heat-loving food items (fish, squid), which play an important role in the nutrition of cetaceans. The current number of cetaceans in the Sea of ​​Japan (20 species) is apparently somewhat lower than it was at the beginning of the 20th century. The decline in whale stocks mainly affected gray whales and minke whales. With the cessation of large-scale whaling over the past ten years, there has been a gradual recovery in the populations of gray whales, minke whales, sperm whales and some species of dolphins. It is quite possible that in the coming years many rare species of whales and dolphins will become common in the Peter the Great Gulf and off the coast of Primorye.

There are also six species of seals found in the Sea of ​​Japan: larga, lionfish, bearded seal, ringed seal, or akiba, northern fur seal and sea lion. Of the listed species, the most common are sealed seals and northern fur seals.

Seabirds

The main place in Primorye where sea colonial birds nest is Peter the Great Bay, located in the extreme south of the region. The area of ​​its water area is about 55,600 km2. Numerous rocky islands (up to 200 m high) and an indented coastline with shallow bays create good conditions for nesting and feeding. About 100 thousand colonial birds live here, the most numerous of them being the black-tailed gull. Peter the Great Bay is the only nesting site in Russia for two representatives of the tubenosed order: the fork-tailed storm petrel and the pied petrel. In addition, there is reason to believe that a rare bird, the crested old man, nests here.

100–200 thousand water birds winter in Peter the Great Bay annually: guillemots, common buzzard, slaty and glaucous gulls, Bering cormorant and various species of sea ducks. The largest seabird colonies are included in the Far Eastern State Marine Reserve. These are the pied petrel, fork-tailed storm petrel, Ussuri cormorant, great cormorant, Bering cormorant, black-tailed gull and slaty sea gull.

In addition, on the high rocky cliffs of some islands there are colonies of gray herons, white-rumped swifts, and also nests of peregrine falcons. On the smallest islands, covered with dense thickets of wormwood, there are settlements of a small land bird of the Sea of ​​Japan - the island cricket. This is the only place in Russia where this bird species lives.

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