- Body structure
- Birth and development
Asian halibut is a very beautiful fish of an unusual type, which is also quite tasty. It is considered a delicacy, and for a dish of it will have to pay a large sum. She lives in the depths of the Pacific or Atlantic Ocean, so it is quite difficult to mine. But not only this increases the cost of delicacy.
Will help to deal with the structure of the body, which has the Asian halibut, photos, located in the article. It is elongated, covered with large scales on top. On both sides of the mouth are sharp teeth in two rows. Lips are flat, fangs they almost do not close. This makes catching halibut difficult.
Amazing is the location of the eyes. They are only on one side of the animal, which is unique in its kind. The blind part is different in color, it is much lighter. The one where the eyes are located is brownish, sometimes with a blue or black tint.
The size of the fish can reach up to one meter, but there are also smaller individuals. Usually in those waters where fishing is observed, it never grows to its maximum size. First, eating old fish is not so healthy and tasty. And secondly, it simply does not have time to grow old, as the fishermen carefully watch the young fry and the adult generation.
Asian halibut is arrow-toothed - one of a kind. But he has an American colleague. They are distributed on the respective sides of the Pacific coast. In fact, they differ little, and for the most part only similarities are observed between them.
Both the American and the Asian halibut belong to the flounder, the size of each of them reaches one meter. Both become sexually mature at about the same age. Males can continue breeding in 6-7 years, females - in 8-9 years. It should be noted that all halibuts are predators.
The differences lie in the fact that the Asian halibut are sent to spawn in the fall, the American - in the spring. It is likely that this is due to temperature. It is cooler off the coast of America, so the fry cannot survive in sub-winter temperatures. Near Asia, on the contrary, is warmer. Accordingly, hot summer weather will not be a favorable time for the growth and development of fry.
It is difficult to find more individual fish than Asian halibut. Photos can prove it. First, the fish have an asymmetric shape of the skull. Secondly, they can see only one side of the body, as there are no eyes on the other. However, when it comes to breeding, the process of halibut is more or less standard and common.
When puberty is reached, females and males go to spawn. It happens in the fall or winter. Then the first spawn caviar at a depth of one kilometer. But most often the eggs are found at a distance of 300-500 meters. It is necessary that the water temperature at this time did not fall below 2-10 degrees.
In one go the female can leave many eggs. Their number reaches 3.5 million. But not everyone can survive, of course. Further, the reproduction period is terminated, since each egg begins its own independent path of development.
Birth and development
When the breeding season comes, the Asian halibut throws eggs that resemble more larvae. This is due to the fact that they have very large sizes. In addition, since birth, while still at the stage of eggs, halibuts are already able to protect themselves. Above their eyes and near the gill cover spikes are located, with which they can drive away small predators gathered to feast on food.
It should be noted that other species of halibut, except Asian and American, have no corresponding thorns.
In appearance, the eggs really resemble the larvae. They are thin and slightly elongated. In addition, their color is a little faded. Most likely, this is due to the lifestyle of the fish - it lives in the depths where it is difficult to penetrate the sunlight. Eggs can be sown only at a temperature of 6 degrees for 16 days. Then they go through several stages of transformation, and at the last stage they look like a normal flounder. This occurs in all members of the family, not necessarily halibuts.
Fry develop rapidly, at the age of three months they already resemble an adult in body structure. However, the age suitable for procreation is rather late. For this reason, on some coasts, the capture of the fish in question is supervised. If she does not live on the territory of the fishery, she can reach the age of 30 years, and only then will die of old age.
Asian halibut is a real predator. Moreover, he will never eat plants or algae. Some fish sometimes allow this variety, but not halibut.
As for food, then halibut by and large do not care what to eat. They can eat smaller fish, crabs, shrimp and so on. In a word, suitable for food, they consider any meat that they will meet on their way.
From halibut fish preferred pollack or herring, but not against other members of the family flatfish. And it is not at all necessary that the victim was smaller in size, the main thing is that she could not fight back.
Halibut like invertebrates, in particular - squid. But they can eat them only in summer, when they rise to the upper water layers.
In the field of fishing, fish are often fed additionally. It may be small fish, specially captured for this purpose, or large individuals, but chopped.
Recently, the question often arises as to which of the listed representatives will have smaller sizes:
- Killer Whale.
- Asian halibut.
- Sea Horse.
Killer whales are the largest members of the dolphin family. Males reach a length of 10 meters, females - 7. Therefore, this option can be immediately folded.
Who is smaller: Asian halibut or seahorse? As mentioned above, the flounder grows to 1 meter, but most often it meets with a length of up to 70 cm. The largest sea horse can reach only 30 cm. Accordingly, it will be the smallest of the listed options.
If we consider representatives from trawl catches, then they usually are not more than 50 cm. Small fish are released in the fishery. Too large, too, since its meat will no longer be as tasty and juicy as in adolescents.
The Asian halibut fish lives mainly in the northern part of the Pacific and Atlantic Ocean. It can also be found in the Bering Sea of Okhotsk and the Sea of Japan. In the latter case, the presence of halibut is extremely rare.
Sometimes found in Primorye, but in private. It goes there from the waters of Sakhalin, therefore it is of no value to the fishery. The most widespread occurrence is observed in the northern part of the Pacific Ocean. Here the fish occurs from the shores of Sakhalin and to the western part of Alaska.
Halibut lives at depth, for this reason it has a characteristic flat body shape. Adolescents who have already become full-fledged individuals, but have not yet reached the breeding season, try to keep lower than adult specimens. It is likely that this is due to the instinct of self-preservation. Seniors are forced to rise up in order to leave the eggs.
Halibut is a valuable commercial object, because it has good juicy and fatty meat with excellent taste. Fish are usually harvested by trawls or longlines. The latter method is rarely used.
A suitable time for fishing is autumn and winter, as the fish rises above from the depth in order to leave the eggs, give the opportunity to be born and develop to offspring.
When the Asian halibut gets into the trawls, its dimensions usually do not exceed 50-70 cm. This is due to the fact that small fish hide in the depths and they do not need to climb higher, because the ability to continue the race has not yet developed.
It is impossible to find a more beautiful, amazing and unique fish in the whole ocean than the Asian halibut. Pictures with his image adorn many desktop users, and photos cause genuine delight. We must also recall the wonderful taste. If you turn up the opportunity to try a dish of this fish, then you can not refuse it. And, of course, do not forget about nutrition. All seafood is saturated with substances necessary for the human body. But halibut has literally miraculous properties. People feel better after eating it.