Varieties of fish - calorie content and beneficial properties

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Veiltail (Carassius auratus auratus) is one of the most luxurious varieties of aquarium goldfish, and in our country, perhaps one of the most famous and popular. Veiltails, however, are considered a rather rare and relatively expensive variety, since it is difficult to obtain offspring from them, and even more difficult to obtain a real quality variety. The body of veiltails, in contrast to ordinary goldfish and shubunkin, is more rounded and ovoid in shape.

Origin

All of today's varieties of goldfish are descendants of wild carp that live in Asia and Central Asia (Siberia). These fish live in still waters of rivers, lakes, ponds and ditches; They feed on plants, detritus, insects and small crustaceans. Over many centuries, beginning in the 16th century, these fish produced a huge variety of goldfish shapes and colors. There are currently 125 species of goldfish.

Veiltail goldfish were developed in Philadelphia in the late 19th century from the Japanese variety Wakin.

Char

Char is a genus of ray-finned fish belonging to the salmon family. This fish has no scales. Small hard plates can be found on the body. It is with them that the char increases its swimming speed.

In appearance they appear completely naked. Their body shape is oblong. It is distinguished by large fins. The lips are big. On average, their length is about 20 cm. They feed on zoobenthophages.

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Description

The main feature of veiltails is their long and thin-looking fins. In the best specimens, the caudal fin is completely split into two lobes, and the anal fin is also completely divided into two parts. In the worst specimens, these fins may not be completely separated all the way to the body. The best veiltails should have a tail that is at least 3/4 of their body length. The dorsal fin is single, straight. The body is ovoid, short and thick. They grow up to 15 - 18 cm in length, but not less than 5.5 cm, although 7.5 - 10 cm of the total length is the tail.

Veiltails are similar to fantail goldfish, but they have a more rounded body and extremely long and thin fins. The double caudal and anal fins are well separated, and the dorsal fin is longer; in veiltails it can grow up to 6 cm.

The color can be solid red or orange, variegated or multi-colored. Quality fish should be bright, intensely colored, and the color should extend to the fins.

Veiltails live on average 10 - 15 years in a home aquarium.

Moray

These are also snake-like fish. Moray eels grow up to 3 meters in length. Weight at this size is approximately 50 kilograms. However, moray eels are difficult to spot. Most species have camouflage colors and reliable shelters. Waiting for prey to pass by, moray eels hide in bottom caves, cracks between stones, and depressions in the sand.

Facts of moray eels attacking divers have been recorded. Most of the incidents occurred during night dives. During the day, moray eels are inactive. If it is not the fish that catches the man, but the man who catches the fish, the scaleless creature is sent to the table.

Moray eel meat is considered a delicacy. The title was earned in ancient times. Dishes made from moray eels were especially appreciated in the Roman Empire. Modern restaurants also delight with a variety of fish menus.

Maintenance and care

These impressively beautiful fish will decorate any aquarium, but they are not suitable for beginners - they are very delicate fish. Their thin, long fins are extremely susceptible to injury and infection, and their round body makes them very slow.

Just like all goldfish, veiltails are cold-resistant; they do not require mandatory heating in a home aquarium. However, it is very desirable to use filtration, especially biological. Filters will remove most of the detritus and waste from the water and help keep the water clean and oxygenated. All of this is very important if you want to keep your Veiltails healthy.

Choose an aquarium with a minimum volume of 40 liters, but it is better to immediately take a large aquarium: 70-100 liters for 1 goldfish and plus 35 liters for each additional one. That is, to maintain, for example, 5 veil tails you need 70 + (35 * 4) = at least 210 liters! You need to choose a tank with the largest water surface area so that the water can be freely saturated with oxygen.

With enough water, veiltails will grow large, beautiful and healthy, otherwise they will be stunted, prone to disease and may die.

Veiltails prefer cold water; water between 18 and 22°C suits them best. They can tolerate lower temperatures, just a few degrees above zero, but the cooling should be gradual, only a few degrees per day. A sharp drop in water temperature can kill veiltails. They can be kept in a pond, but it is better in a home aquarium - these goldfish are weaker than many of their other relatives.

It is advisable to have soil in the aquarium, so the veiltails will feel more comfortable. Decorations can be used, but they must all be smooth, with no sharp or protruding edges. It is better not to use stones and driftwood at all, or very little. Aquarium plants are useful, but they can all be uprooted by veiltail burrowers. You can take anubias or ferns, tying them to round stones, or artificial silk plants.

Lighting doesn't matter. Veiltails rarely jump out, but it is best to use a cover in the aquarium to reduce evaporation.

Veiltails are freshwater aquarium fish, but can live in slightly brackish water.

Content Options

Temperature : 18 - 22° C; Breeding temperature : 18°C; pH : 6.0-8.0; General hardness : 5 - 19 dGH; Salinity : specific gravity less than 1.002.

Alepisaurus

This is a fish of the deep sea, rarely rises above 200 meters from the surface. Many compare Alepisaurus to a lizard. There is an external resemblance. On the back of the fish there is a large fin, reminiscent of the protrusion on the back of a monitor lizard.

Large pectoral fins stick out to the sides like paws. The body of Alepisaurus is narrow and long. The head is pointed.

The body of the Alepisaurus is completely devoid of scales. This adds originality to the appearance. Catch fish to view. Alepisaurus meat is rarely used for food. The fish does not differ in taste. But it is interesting to study the contents of animal stomachs.

Representatives of the species are indiscriminate in food. In Alepisaurus it is digested only in the intestines. Therefore, plastic bags, tennis balls, and jewelry remain in the stomachs.

Alepisaurus grows up to 2 meters in length, weighing 8-9 kilograms. You can meet representatives of the species in tropical seas.

As you can see, the appearance of many fish without scales is truly repulsive. Questions arise about diet and lifestyle. But among the scaleless species there are also noble species. Religious issues aside, they deserve attention. And from the point of view of science, each of the fish deserves it.

Sarganaceae

Garfish live in tropical, subtropical and temperate latitudes. There are marine and freshwater ones, up to 1.5 m in size. They are predators by nature, the main diet is crustaceans and small fish. The body is flattened laterally, the jaw is shaped like a beak. The color has a greenish or blue tint, with dark stripes on the sides. The elongated shape of the body allows this fish to develop significant speed, which poses a danger to people involved in diving, surfing, and fishermen. All garfish are edible, but are mostly used only for local consumption.

The most famous:

• European garfish;
• narrow-snouted tyrosur;
• Atlantic saury.

White fish

White fish are the most common fish in ocean waters. Most of the white fish are dietary, low in fat. This is compensated by the protein content - over 20 grams. The high content of vitamins B, A, E, D, calcium, phosphorus, iron, magnesium, zinc makes meat very healthy.

White fish differ in appearance (flat and round), belonging to families, and habitat.

Flat fish include:

• flounder;
• halibut;
• tilapia.

Round:

• hake;
• pollock;
• pollock;
• cod;
• striped bass;
• burbot.

Marine fish are distinguished by their flattened shape and fairly large sizes (up to 2 meters).

White sea fish prefer salty, cold water, where they live in large quantities. All countries allow the fishing of these fish in industrial quantities. This is due to the high rate of population recovery, which makes it an indispensable source of quality food. This fish is consumed fried, dried, dried and even boiled. In addition to dietary ones, there are also fatty varieties - mackerel, herring, halibut.

Ray-finned fish

Ray-finned fish are one of the classes of fish that occupy a dominant position in terms of the number of families. About 95% of species of both large and small sea fish are ray-finned. Representatives of this class are found in almost every body of water. The fins, similar in structure to a feather, determined the scientific name of this class. Ray-finned animals are approximately 420 million years old.

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Which one is for sale?

In stores you can find many varieties of sea fish, which are sold for every taste. It all depends on the locality and distance from the seas. It is worth noting that not all species are used for food; some are decorative species.

Thus, a cardinal is an aquarium representative of the ray-finned fish from the carp family. This species is very popular among aquarium enthusiasts. The cardinal fish has 4 breeding forms, but most often you can see individuals with a predominant red tint. Body sizes reach 4 cm, lives in cool water, temperature 14-22 degrees Celsius. The original habitat is the territory of China, from where it spread. The cardinal is sold in pet stores.

The list of outlandish species can include swordfish (swordfish), the only representative of swordwings. Body length reaches 4.5 m, body temperature can be lower than the environment. Swordfish are natural predators with a wide variety of foods. The name is derived from the highly elongated and pointed upper jaw, which has no teeth, and resembles a sword. The global catch per year reaches 100 thousand tons. The meat is tasty, without an unpleasant odor, and there are no small bones. The sword makes migrations, sometimes reaching 2 thousand kilometers per season. Large individuals can reach speeds of up to 100 km/h while hunting.

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Capelin should be called one of the beneficial foods for humans due to its high content of vitamins, iodine, and proteins. It is used to prevent heart and vascular diseases and for weight loss due to its low calorie content. The reserves of capelin in the World Ocean are large, which explains the high commercial interest. The annual catch can be up to 1 million tons. This species has a wide habitat in cold waters, which makes it relatively accessible. The fish is small in size, up to 25 cm, the back is dark, the sides and belly are silver.

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pearl fish

This aquatic inhabitant belongs to the carpus family. Pearl fish without scales got its name for a reason. According to a common interpretation, one of the pearl fishers, diving deep into the water, noticed a small snake-like fish near an oyster shell.

A long stay in such a “house” painted it the color of pearls. The small size of the fish allows it to swim into the shell. An interesting observation is that pearl fish lead a lifestyle depending on the degree of their independence.

Most often, they play the role of parasites, that is, creatures that can only live off the body of another representative of the animal world. The pearl fish prefers to settle in the anal pores of the sea cucumber. She stays there for a long time, eating his eggs. Individuals with a high level of independence prefer to enter into symbiosis with other fish.

Pearl fish are found in the waters of the Pacific, Atlantic and Indian Oceans. In the industrial sphere it is not valued for 2 reasons. Firstly, its miniature size prevents its consumption, and, secondly, the meat of pearl fish contains practically no useful substances.

red fish

Red fish is a generalized name for the delicious sturgeon fish. The popular name for salmon fish has come into use as red, which is associated with the pink and reddish hue of their meat.

Interesting fact: in the old days sturgeon were called red, which meant “valuable”.

At the moment, red fish includes the sturgeon family:

• stellate sturgeon;
• beluga;
• sturgeon;
• sterlet and others.

From salmon

With true red meat:

• pink salmon;
• salmon;
• trout;
• salmon.

With light meat:

• coho salmon;
• whitefish;
• nelma

This classification is widespread, but some researchers are against joining salmon to red fish.

All representatives of this group are valuable for their meat. Per 100 grams of product there are 21 grams of protein, 13 grams of fat and only 1 gram of carbohydrates. In addition to the quantitative composition of nutrients, it is worth considering the quality. Omega-3, calcium, magnesium, phosphorus, iron, iodine, selenium, fluorine, arginine, leucine, valine, vitamins B, C, A, D, E, PP and other macro and microelements are needed by the body for normal functioning.

No less valuable is red and black caviar, with a high content of proteins and fats, which are easily absorbed by the body. Like meat, it has a large number of important nutritional components, established in the correct proportions. And the amount of iodine is even higher than in meat. People with kidney problems should use caviar with caution. Caviar is a rather difficult product for the digestive system, so children under 3 years of age are advised to refrain from consuming it due to the possibility of indigestion.