Fish is an axe. Hatchet fish - a “metallic” inhabitant of the sea depths Rabalka on Zolotoy Veshka

• 2 The best baits for catching crucian carp Crucian carp belongs to the genus of fish of the carp family. It happens three types, namely: golden, silver and ordinary, which are found very often in our area and reach a length of 9-24 cm and a weight of 600 g. Many fishermen are sure that for fishing normal looking crucian carp there is no need for preparation or special tools, but not everyone manages to catch it. Is it true, this fact anglers blame it either on bad weather or on the well-established expression: “capricious fish.” Effective bait for crucian carp Bait for crucian carp on a spring Bait for crucian carp on a feeder Bait for catching crucian carp in summer Ground bait for crucian carp Video Effective bait for crucian carp What is the best bait for crucian carp? To prepare truly effective bait for crucian carp, it is necessary to analyze all aspects of its behavior, as well as its habitat. Having made a thorough analysis and sorted everything out, you can make sure that the crucian carp has a fairly well-developed sense of smell, and this allows it to clearly distinguish odors in the water. The second feature of fishing is the visibility of the bait. The grass at the bottom of the reservoir can easily hide it from the fish. Also, the bait should not be too nutritious. As for the fishing location, crucian carp most often bites where there are no other fish besides it. The nearby underwater vegetation and the depression adjacent to the fishing site will also have a beneficial effect. The basis of our bait should be bread or crackers, which in turn will not become part of the muddy bottom. It all starts with kneading breadcrumbs with white or brown bread. Afterwards, part of the bran is added, which allows our bait to remain on the surface of the water for more time. The amount of oatmeal should be related to the depth of the planned fishing location. At the final stage, given the excellent sense of smell of crucian carp, you can add an aromatic ingredient, namely dill, seeds or cinnamon. Garlic, which can be found in the kitchen of any housewife, is also famous for its good aromatic properties. Bait for crucian carp on a spring Catching crucian carp on a spring is a fairly common method, which has one important advantage - a large and high-quality catch. Auxiliary tackle should be 5 cm in length and 1.5–2 cm in diameter. During manufacturing, the spring and hooks are mounted between the sinker and the fishing line, which allows only the sinker to sink into the silt, while the bait itself remains on the surface. The bait should be dry with water added at the fishing site. You can make such a mixture yourself by boiling pea or wheat cereals with the addition of ground into flour oatmeal and crushed seeds. Homemade stand for fishing rods. You will learn how to make it in our article. And here we will talk about how to make covers and tubes for fishing rods with your own hands. Moscow region - fishing in silence and solitude

How long does crucian carp live?

It is very difficult to answer such a question, especially in our time, when in order to catch it, humanity has come up with a lot of gear that leaves little chance for the fish to prolong long life. Not only that, but in the underwater kingdom she will find many predators and other troubles that affect her life expectancy. If we add to all of the above the environmental component (emissions into water bodies chemical substances), it’s simply amazing how the fish in our reservoirs are still alive and continue to delight all fishermen, although not with large catches. When they say that a fish lives until it is caught, this is absolutely not relevant in relation to our time.

In order to prolong its life, the fish goes through many obstacles and endures extreme conditions: heat, cold, lack of food, various predators.

Amazing capabilities of crucian carp

Unlike other fish species, crucian carp can withstand most of these conditions and even more. It can fall into a state of suspended animation when there is a lack of oxygen in the water, buries itself in the silt and remains there in this state for quite a long time: the time can be calculated not in days or months, but in years.

A female crucian carp can lay from 50,000 to 300,000 eggs, most of which may not produce offspring due to unsuitable conditions, and some may simply be eaten by other fish species.

Under certain conditions, the surviving part of the eggs will give rise to fish offspring in the form of small crucian carp, which are practically not protected by anything in the first days of life. They appear 2-3 weeks after the eggs have been laid and fertilized. During this period, quite a lot of crucian carp fry die. The first year or two is very difficult for him, after which it is easier for him to survive until puberty, which occurs in the 3rd or 4th year of life. In two years, if there is enough food, he can gain weight from 200g to 300g and may no longer be afraid of most of his hunters. But this is exactly the weight that fishermen love very much and are not averse to having such crucian carp as a trophy.

Types of crucian carp

As far as we know, two types of crucian carp can be found in our reservoirs: golden and silver. Golden crucian carp prefers reservoirs with stagnant water, and silver crucian carp can live anywhere: in rivers, lakes, ponds, stakes, etc. Even small, artificial “diggings” somehow become populated with white crucian carp over time.

Red crucian carp can live, if it is not caught during this time, up to 10 or 12 years, gaining a weight of 5 kg during this time and reaching a length of about half a meter. As a rule, inveterate “crucian carp fishermen” know the habits of this fish well, since they give preference to catching golden crucian carp, which is considered tastier than its silver counterpart. To catch such a handsome fish, appropriate baits and attractants have been developed. In this case, the habits of the red crucian carp are used, which moves around the reservoir using its “paths”. Every fisherman has a great desire to catch red crucian carp, which, weighing about half a kilogram, resists very seriously. They also say that he is much smarter than the white one, therefore, he very rarely falls for the bait.

Silver crucian carp lives no more than 10 years, reaching a weight of about 1-1.5 kg. Being in the same reservoir with red crucian carp, it gradually displaces it and takes a dominant place. Most likely, this is due to the fact that silver crucian carp is more tenacious and prolific, while eating its golden brother. At the same time, he is able to live in very muddy water. Sometimes you just wonder how white crucian carp lives in such a reservoir, with such muddy (sometimes green) water, and even in large quantities.

As a comparison, we can say that the beluga can live up to 100 years. Fish such as carp, catfish, and sturgeon can live up to 50 years, and smaller fish can boast a life expectancy of about 10-15 years.

From the above we can conclude: than more fish, the longer her life.

Fishing for crucian carp in winter from ice

Catching crucian carp in the spring with a float rod...

Hook for crucian carp

DIY dough for crucian carp

Catching crucian carp with a spring

Bait for catching crucian carp

Catching large crucian carp

How does crucian carp bite?

Catching crucian carp in summer with a float rod...

The best baits for catching crucian carp

Crucian carp belongs to the genus of fish of the carp family. It comes in three types, namely: gold, silver and ordinary, which is found very often in our area and reaches a length of 9-24 cm and a weight of 600 g.

Many fishermen are sure that there is no need for preparation or special tools to catch a common type of crucian carp, but not everyone succeeds in catching it. True, fishermen attribute this fact either to bad weather or to the well-established expression: “capricious fish.”

Lake Solkovskoye

Fishing on Lake Solkovskoe

Rabalka on the Golden Veshka

Lake Zabolotskoye

Lake Ozeretskoe

Sinkovsky Pond

Rivers Sestra, Dubna and Yakhroma

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Features of fishing on the Kola Peninsula

Today we are heading strictly to the north of the Moscow region. I fully admit that many Muscovite fishermen don’t even know about some reservoirs in this direction; mainly only local amateurs from the Taldomsky district and the neighboring Tver region fish here.

Getting to some bodies of water is problematic due to the lack of convenient access; you have to walk through the wilderness for miles with a backpack on your shoulders and fishing rods in your hands. Only true fishermen, true fans of their craft, are capable of this.

You immediately forget all the road difficulties and hardships as soon as you reach the final goal - you find yourself in a fabulously beautiful corner of nature untouched by “civilization.” And what kind of fishing is there! Imagine that you hooked a fish and the rod bent into an arc, the taut fishing line began to cut through the water with a ringing sound, and after exciting fishing you pulled out a golden-bronze giant crucian carp weighing three kilograms! Yes, don’t be surprised, there are places here where you can catch such fish with a fishing rod.

However, first things first. At the very outskirts of the northern Moscow region there is Lake Kuznetsovskoye. The village of Kuznetsovo is located nearby, hence the name of the lake. The reservoir is rich in a variety of fish: crucian carp, roach, perch, pike. There are especially a lot of crucian carp, and large ones at that. Whoever visits here will not regret it and will certainly want to come here again and again. A rich catch of plump crucian carp is almost guaranteed. The fish here, one might say, is not spoiled with different “dishes”, as is observed in the reservoirs of the near Moscow region. Therefore, it always bites on a worm and other bait.

Fishing here is possible both in summer and winter. In summer, you can use a float rod to hook crucian carp, roach, and striped robber perch. Pike and large perch are caught using spinning rods and fishing rods. In winter, pike can be caught well with girders. There are also perch. In winter, perch and roach are caught using jig tackle. Most good fishing happens on the first and last ice.

It is especially pleasant to sit with a fishing rod on the western shore of the lake. Here the forest comes close to the water, protecting it from the wind and creating a special coziness. You can always find a place to pitch a tent and do what you love – fishing.

How to get to Kuznetsovsky

Directions: by car along the Dmitrovskoe highway through Taldom to the village of Kvashonki, here turn right to the village of Khrabrovo, then go north to the village of Glebovo. From here to dirt road to the lake, which will be to the right of the road.

Lake Solkovskoye

A few kilometers southwest of Kuznetsovskoye is Lake Solkovskoye. It is surrounded on all sides by dense forest. If you decide to go here for the first time, it is better to go with a partner who knows this area. Otherwise, you can get lost in the forest, but never reach your goal.

Fishing on Lake Solkovskoe

And the fishing here is simply fabulous. The fish composition is almost the same as on Lake Kuznetsovskoye, but the fish are much larger and bite better. Apparently, this is due to the fact that, due to its inaccessibility, the reservoir is rarely visited by fishermen and the fish are not scared. Large crucian carp, roach, and heavy perches are caught using a float rod. Spinners don’t have to get bored either. There are a lot of pike here, and large ones, which greedily grab almost any bait - a spinner, a wobbler, a twister, a vibrotail, a foam rubber.

Along with the toothy predator, there are also large perches. Fishing is also possible in winter. She is especially lucky during the first ice season. At this time, pike and perch are well caught using winter lures and vertical lures.

And there was not a soul around. Quiet and deserted. Only the quack of a duck sometimes breaks the pristine silence, and the wind rustles in the treetops. My soul is light and calm. At such moments, you especially acutely feel your unity with Mother Nature.

How to get to Solkovsky

It’s more convenient to get here this way: by car along the Dmitrovskoye Highway we get to Taldom, then turn right to Esaulovo, and then left to the village of Glebovo, and from here again to the village of Yurino. Here you will have to leave the car and walk more than three kilometers along forest paths.

But perhaps the most remarkable lake in the northern Moscow region is a reservoir with strange name Golden Pole. It’s even hard to believe that in our time such a wonderful, beautiful and cozy corner of nature near Moscow could survive.

Rabalka on the Golden Veshka

And most importantly – what kind of fishing is there! There are a lot of crucian carp in the lake of both types - silver and gold. Fish as big as your palm are actively biting, but often a silver crucian weighing up to one and a half kilograms is on the hook, and a gold carp weighing three kilograms! It’s not hard to imagine how many unforgettable, exciting moments a fisherman experiences while fishing for such an underwater giant!

How to get to the Golden Veshka

Directions: by car along Dmitrovskoye Highway to Taldom, then north to the village of Kvashonki, here turn right towards the village of Kolbasino. Here you will again have to leave the car and walk more than four kilometers along a forest path to the lake. you can get there and public transport: by train from Savelovsky station to Taldom, then by local bus to Kolbasino.

Lake Zabolotskoye

There is another remarkable lake in this direction of the Moscow region - Zabolotskoye. It fully justifies its name: the forested banks are very swampy. Therefore, in summer fishing here is only possible from a boat. The lake is rich in crucian carp, roach, perch, and pike. The reservoir is very impressive in size, its length from north to south is more than a kilometer, and its width is half a kilometer. And all the banks are swampy, especially in the northern part.

Travel: by car Yaroslavl highway to Sergiev Posad, from here turn left towards Deulino and Fedortsevo. Then go left to the village of Zabolotye, from which favorable weather You can get there along a dirt road, and after rain - only on foot (two kilometers).

Reservoir not marked on the map

A few kilometers east of Lake Zabolotskoye there is a very original reservoir, not marked on any map. topographic map, nor on the atlas of the Moscow region. Although it is very impressive in size, the opposite bank is not even visible. Its originality lies in the fact that numerous tree trunks protrude directly from the water, in some places entire dense rows of them. Despite its impressive size, the reservoir is shallow, only in some places the depth exceeds two meters. It is said that this vast but shallow reservoir was formed by damming a local river.

The reservoir is very rich in white crucian carp. I had a chance to visit here once and still have the most pleasant memories of that fishing. Fished from an inflatable boat. On a “sandwich” of bloodworms and maggots, the crucian carp bit simply superbly. Moreover, the float rarely sunk, most often it slowly floated up and lay down. The bite was so active that the usual joy at the sight of a bite gradually dulled, as fishing turned into mechanical work of casting gear and pulling out the next fish.

Out of habit, I tried to catch with semolina porridge, flavored sunflower oil and anise. There were bites, but noticeably less frequently than with the “sandwich”. Only closer to noon the bite subsided. But by this time I had already caught eight and a half kilograms of crucian carp with two fishing rods.

Due to the abundance of fish and the constant bite, the reservoir is very popular among fishing enthusiasts. Suffice it to say that fishermen come here not only from the Moscow region, but also from Vladimir, Tver, Yaroslavl and even Ivanovo regions. In a “spontaneous” parking lot you can always see more than a hundred cars.

Directions: after the already mentioned village of Fedortsevo, turn right towards the village of Polubarskoye. From here it is about half a kilometer on foot to the reservoir.

Lake Ozeretskoe

It should also be said about Lake Ozeretskoye, located next to the Dmitrov-Sergiev Posad highway. The reservoir is also of considerable interest to fishing enthusiasts. There are crucian carp, perch, pike, rotan here. Considering that the shores of the lake are also very swampy, summer fishing here is only possible from a boat. Only in some places you can approach the water along paths from the shore. In winter, the lake is more accessible for fishing. You can catch pike and perch using winter baits and vertical lures.

Getting here is easy: by car along the Yaroslavskoe highway to Sergiev Posad, turn left towards Dmitrov and get to the village of Ozeretskoye. The lake is nearby, on the left as you go. Or along the Dmitrovskoe highway to Dmitrov, turn right towards Sergiev Posad and drive again to the village of Ozeretskoye.

Sinkovsky Pond

There are many ponds in the northern Moscow region that are attractive for fishing. In the Dmitrovsky district, large ponds near the village of Goritsy and near the village of Sinkovo ​​are often visited by fishermen. In the pond near Goritsa you can catch carp, crucian carp, roach, perch, and pike. The Sinkovsky Pond is dominated by large carp, crucian carp, and perch. And near the village of Zhestylevo there is a pond of the local fish farm stretching for several kilometers, where for a fee you can catch carp, crucian carp, roach, perch, and pike.

Rivers Sestra, Dubna and Yakhroma

The Sestra, Dubna, and Yakhroma rivers flowing through this area are also of great interest to fishermen. The coolest places on the Sestra River begin in the area after Klin before it flows into the Dubna River - the river is very winding, forms many deep pools and wide reaches. From early spring to late autumn, bream, roach, perch, dace, silver bream, chub, and ide are successfully caught here using a float rod and bottom tackle. To the delight of spinning anglers, there are a lot of pike here, and even catfish. Good fishing on the river in winter.

Conditions for fishing are approximately the same on the Dubna River. Its fish composition is almost the same, only there are more chub and dace here. The most interesting places for fishing are located in the lower reaches of the river, starting from Verbilki to the confluence with the Volga. There are many deep pools here with slow flow, where you can always count on productive fishing.

The Yakhroma River is interesting for fishing only in its lower reaches, starting from the village of Ust-Pristan. As the water warms up after the spring flood, roach, ide, and bream are easily caught here. However, by mid-summer the river becomes very overgrown and fishing on it becomes almost impossible.

System of reservoirs from the canal named after. Moscow

And finally, in the near north of the Moscow region, within just an hour's drive from the capital, there is a whole system of reservoirs formed by the canal named after. Moscow. It's about about Ikshinsky, Pestovsky, Uchinsky, Pyalovsky, Klyazminsky and Pirogovsky reservoirs.

I think that there is no need to describe each of these reservoirs in detail, since they are well known to fishermen in Moscow and the near Moscow region.

The fish “assortment” in all these reservoirs is almost the same: bream, roach, perch, pike, pike perch, burbot, silver bream, ide, crucian carp, tench, ruff. Eels and catfish are less common. Fishing conditions are also similar; people fish here with both float rods from boats and donkeys from the shore; there are especially many fishermen here in winter.

The hatchet fish, or as it is also called the wedge-bellied fish, is a small sea ​​fish. These live strange looking fish at depths from two hundred meters to one kilometer.

These little fish have a huge open mouth and compact fins. These fish got their name from their characteristic body shape, which bears some resemblance to a small hatchet with a short handle, strongly compressed from the sides.

The eyes of the hatchet fish are quite large, looking upward and also telescopic. All species of fish that are included in this family have special luminescent organs - photophores, which are located on the lower half of the body in groups of several pieces, and on each side lined up in a row along the abdomen.

The structure of photophores is such that green light The energy they emit is directed downwards, creating what is called an anti-shadow effect.

Thanks to this anti-shadow effect, the silhouette of the fish, which can be seen against the background of diffused light falling from above, becomes more blurred.

This makes the hatchetfish less noticeable to predators that may be below it. The hatchet fish feeds on plankton and small crustaceans.

This representative of the hatchet family is characterized by special structure dorsal fin. The front part of this fin is what is commonly called the dorsal lobe, which is formed not by fin rays, as in most other fish, but by completely different parts of the body. These parts are the so-called pterygiophore bones, which in the hatchet fish are not hidden in the back muscles, but, being highly modified, protrude outward.

It is worth noting such a characteristic feature of representatives of this family of marine fish as a very high body, strongly compressed on both sides and narrowed in the tail area. There is a sharp keel on the belly. If you look at the hatchet fish from the front, it will be very difficult not to call its appearance somehow otherworldly. However, when viewed from the side, this inhabitant depths of the sea also can hardly remind a person of at least one thing Living being, to which we are accustomed.

True, some compare the appearance of hatchet fish to sun-dried bream that has spoiled in the sun small size, but this only confirms that it will not be easy to find something among the representatives of freshwater and a significant part of the marine fauna that would resemble a hatchet fish.

This fantastic appearance is explained by the fact that this fish actually lives in a world that, according to land concepts, is fantastic - not just in the sea, but also at great depths, where not a single ray of sunlight penetrates. And the only source of light at these incredible, up to one and a half kilometers, depths are special glowing organs, which are found in the same species as the hatchet fish, deep-sea fish, and others deep sea creatures.

Thanks to such lighting, the predatory inhabitants of this dark world can find prey, which ensures the maintenance of this bizarre life. By the way, despite its terrifying appearance, the hatchet fish does not pose any danger to humans, especially since its size does not exceed ten centimeters.

You can meet hatchet fish in almost any part of the world open ocean, where they are often quite numerous. Hatchetfish are an important component feeding on other fish that are larger than the hatchet fish.

The vertical limits of distribution of the hatchet fish have not been reliably established to date, but most likely they do not occur at depths of more than two kilometers. The body of the fish is high, and the jaws are located at an acute angle relative to the midline of the body. The eyes have big size, and in front of the ventral fin there is a spine with a forked tip.

The tail stalk of the hatchetfish is so short that it resembles a kitchen hatchet, which is characterized by a short handle.

The back of the fish is colored grayish Brown color, and the sides are silver-white. Hatchet fish live in the mesopelagic zone.

Hatchet fish swim in dark waters: at great depths during the day, closer to the surface at night.

They are easiest to find at depths of four hundred to six hundred meters, and at night somewhat closer to the surface - at depths of two hundred to three hundred meters. This fish can usually be found close to the edge continental shelf. Sometimes they are found in coastal waters off open ocean shores.

From time to time, hatchet fish get caught in nets in fairly large quantities. As a food item it is an important component for tuna and other representatives of the cod family.

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deep sea saltwater hatchet fish(lat. Sternoptychidae) belong to the ray-finned fish from the order Stomiiformes. They got their name from the bizarre shape of a thin flexible body, reminiscent of a sharp ax blade. This family currently consists of 45 species of fish, with body lengths ranging from 2.5 to 15 cm.

Behavior

Hatchet fish, like many other inhabitants living at depths of up to 1.5 km underwater world illuminates its path using bioluminescence. She has special organs - photofluors, located along the abdomen. With help chemical reaction they produce a greenish light.

Photofluors are designed in such a way that the luminous flux is always directed downward. Anyone looking up at a fish is unlikely to notice it against the backdrop of light coming from the surface of the ocean. Depending on the surrounding lighting, the hatchet can arbitrarily change the intensity of its glow.

Hatchet fish can be found in tropical and sub- tropical waters world ocean. About her life cycle little is known for certain. Many researchers are inclined to believe that its lifespan does not exceed one year. At night, the fish migrate to shallow waters of 200-300 m to hunt plankton and small fish. She catches food floating above her.

IN daytime hatchets return back to a depth of up to 2 thousand m. Selected species hatchetfish can gather in huge, dense schools, causing problems for vessels using echo sounders to determine depth. For the first time, sailors encountered a “double bottom” in the middle of the 20th century.

Huge concentrations of hatchetfish are good bait for large ocean fish, especially commercial tuna.

The reproductive features of hatchetfish have been little studied and most of them still remain a mystery. It is known that young individuals are very different in appearance from adults.

Morphological features

Among known species Argyropelecus Gigas is considered the largest hatchetfish, its body length reaches 15 cm. The body of small hatchets is covered with silvery scales. Some species are dark green or brown in color.

The hatchet species Gasteropelecus sternia has large, convex, upward-pointing, telescopic eyes that are extremely sensitive to light. Thanks to this feature, fish can catch food falling from above and notice shadows from low light below you.

The hatchet fish has a strongly flattened side tall body, which narrows significantly as it moves toward the tail. There is a pointed keel on the ventral part.

The front part of the dorsal fin is a blade made of bones, which in hatchet fish protrude above the dorsal muscles. The large jaws are located at an acute angle in relation to the midline of the body. At first pelvic fin there is a forked thorn.

Carnegiella marthae or black wing hatchet fish (Carnegiella marthae) is a small aquarium fish of amazing shape from the order Characinidae, family Wedge-bellied. Also often found under the name wedge belly. Since the breeding of this species in aquariums has not yet occurred, the fish are quite rare in the aquarium hobby, are almost never found on sale and are expensive.

Origin

Carnegiella March comes from South America. It is found in the Orinoco River basin in Venezuela and the Rio Negro River, Amazon basin. Some specimens have been found in the Madeira River, and may also be found in other areas.

The wedge belly is a typical inhabitant of “black water”, living in reservoirs with sunken wood, a bottom covered with tree leaves and dense overhanging coastal vegetation. The water there is usually brown in color due to the presence of humic substances, and is acidic with low carbonate hardness. During the annual rainy season, water levels rise significantly, and small fish such as wedge bellies move into flooded forests, where they feed and reproduce until the waters return to their normal course.

In nature it occurs in small schools.

Description

The family Carnegiella was founded in 1909 by Eigenmann for the species of marbled carnegiella (C. strigata), and its name Carnegiella was received in honor of Miss Margaret Carnegie, which was supposed to emphasize the beauty and grace of these fish.

Carnegiella marthae is still not very common in the aquarium hobby and can be found under various names: Carnegiella marthae, black wing, hatchet fish, wedge belly, silver hatchet Martha.

Carnegiella martha has a convex body with a deep ventral profile and an anal fin set backwards. The pectoral fins are wing-shaped. The main color is silver, the body is covered with black spots and stripes. From operculum and a horizontal golden stripe runs to the base of the tail. Carnegiella Marcha grows up to 3 cm in length. It lives in upper layers water, closer to the surface.

Large pectoral fins are attached to powerful muscles, allowing fish to push themselves out of the water and glide on the surface. IN extreme situations When wedge bellies feel threatened, they can move, jumping out of the water up to several times. It is sometimes written that Carnegiellas are able to fly above the surface of the water by flapping their pectoral fins, but video footage taken by Wistom in 1995 showed that the pectoral fins are used by hatchetfish only in water, but not in the air.

Carnegiell March aquarium fish not for beginner aquarists. They need excellent water quality and are very sensitive to deterioration in its condition, so they should be stocked in a long-running, stable aquarium.

A biotope with black water is ideal for keeping wedge bellies. Dark sand or fine soil, dense living vegetation, driftwood, tree leaves covering the bottom of the tank and plants floating on the surface of the water (azolla, salvinia, duckweed, pistia). Also, leaves and driftwood will become a source of microorganisms that grow abundantly on them, which in turn will become additional food for fish and fry.

Some collectors and ichthyologists say that wedge bellies do not tend to jump on the surface of the water in the aquarium, but at night, in the dark, the fish often get scared, and in the morning you may find several of them on the floor. Therefore, in an aquarium with wedge bellies it is better to use a lid or glass. Floating plants also protect against jumping out.

The movement of water in the aquarium should be gentle. The water is soft and acidic.

Temperature: 20-28°C;
RN: 4,0-7,0;
Overall hardness: 1-10 ° dGH (18 – 179 ppm).

Regular weekly maintenance of the aquarium must be carried out; partial replacement of 25-30% of the water volume is necessary.

Compatibility

Wedge bellies are very peaceful aquarium fish, but due to their shyness and small size they are not very suitable for general aquarium. Contain them better in group, from 10 fish or more, then they will feel more confident.

The same small peaceful characins (neons, nannostomus, small tetras), as well as dwarf cichlids (apistogramma), some corydoras and chain catfish will be suitable neighbors.

Feed and feeding

In his natural environment Carnegiella marta is a predator that feeds on terrestrial and aquatic invertebrates, zooplankton on and near the surface of the water.

The aquarium will take dry products in the form of flakes and microgranules; live and frozen food, such as bloodworms, tubifex, daphnia, coretra, cricket larvae, Drosophila flies. Any other insects will do.

Differences between a male and a female

Some wedge-bellied fish are larger, denser and more rounded. They are believed to be adult females.

Reproduction

Although Carnegiella martha is thought to reproduce in the same way as marbled Carnegiella, successful reproduction of this species in home aquarium has not yet been recorded.

Hatchetfish are deep-sea fish found in temperate and tropical waters of the world's oceans. They got their name from the characteristic appearance body, resembling the shape of an ax - a narrow tail and a wide “axe-body”.

Most often hatchets can be found at depths of 200-600 m. However, they are known to be found at depths of 2 km. Their body is covered with light silvery scales that bounce off easily. The body is strongly compressed laterally. Some hatchet species have a pronounced expansion of the body in the area of ​​the anal fin. They grow up to large sizes– some species reach a body length of only 5 cm.

Like others deep sea fish hatchetfish have photophores that emit light. But unlike other fish, hatchets use their ability to bioluminescence not to attract prey, but, on the contrary, for camouflage. Photophores are located only on the belly of the fish, and their glow makes the hatchets invisible from below, as if dissolving the silhouette of the fish against the background of those making their way to the depths sun rays. The glow intensity of the hatchets is adjusted depending on the brightness upper layers water, controlling it with your eyes.

Some types of hatchets are collected in huge flocks, forming a wide dense “carpet”. Sometimes it becomes difficult for water vessels to penetrate this layer with their echolocators, for example for precise definition depths. Scientists and navigators have been observing such a “double” ocean floor since the mid-20th century. A large concentration of hatchet fish attracts some large oceanic fish to such places, among which there are also commercial valuable species, such as tuna. Hatchets also form a significant part of the diet of other larger deep-sea inhabitants, such as deep-sea anglerfish.

Hatchetheads feed on small crustaceans. They reproduce by throwing eggs or laying larvae, which mix with plankton and, as they mature, sink to depth.

But it turns out that the name “hatchet fish” is used by two completely unrelated species of fish. Both are distinguished by a wide and flat body, similar to the blade of a small hatchet.

Freshwater hatchetfish are found in South American rivers and spend most time at the surface, catching insects.