👩‍🎤 💀 ❕ What is the name of a fish with a long nose? 🏫 ⚡️ ◼️

Freshwater fish paddlefish is a representative of the family Paddlefish, order Sturgeon-like, species Radianthus.

Why does a fish have a long nose?

Until recently, scientists believed that it serves only for the extraction of food from the bottom of reservoirs. However, recent studies have shown that the paddlefish snout for several kilometers can feel the approach of fish and other inhabitants of the waters, and also helps to hit and chase prey.

Description

A fish with a long nose, the name of which is paddlefish, is a large fish weighing from 70 to 80 kg, reaching a length of 200 cm. A snout (nose-oar), or rostrum - the elongated anterior bones of the skull gives it a terrifying, unusual appearance. The nose has a length equal to one third of the length of the entire fish. At the base of the snout are small eyes. On the lower surface of the rostrum is located the organ of touch - a small antennae. The younger generation has a large number of small sharp teeth.

Body paddlefish without scales, completely naked. The color of the back is dark gray, on the belly and on the sides a lighter shade. On the back there is one fin shifted closer to the tail of the body.

Paddlefish live from 20 to 30 years. However, among them there are elders who have reached the age of 55 years.

Habitat

Fish with a long nose is very active and constantly in motion. Both in the tributaries and in the Mississippi River in the United States, paddlefish are found, and in addition, it can be found in rivers that flow into the Gulf of Mexico.

It lives at a depth of about three meters, far from the coastline. In spring and summer, paddlefish, being at the very surface of the water, can make jumps from it. During the tides, the fish goes to the lakes, and returns after the tide of the water.

Nutrition

Fish with a long nose is the only representative of sturgeon-like, eating phyto- and zooplankton. With a constantly open mouth, the paddlefish collects prey: algae, insects, worms, larvae, plankton. Once in the mouth through a network of long gill hairs, plankton is decanted and then sent to the stomach. The paddlefish finds food with the help of the rostrum; it, like an antenna, picks up fluctuations in the electric field that create small organisms in a pond.

Breeding

Before spawning begins, in springtime, a long-nosed fish gathers in schools and goes upstream to select a breeding site. On lakes, preference is given to areas with rocky soil at a depth of five to six meters at a water temperature of +16 degrees. Mississippi spawning begins in late April.

what is the name of a fish with a long nose

The female lays large eggs, which can reach a diameter of 3 mm, and their number ranges from 80 to 250 thousand pieces. On the tenth day, larvae appear. Young growth quickly arrives in height and weight, thanks to good nutrition. Two weeks later, the nose-oar begins to grow. In a year they already have a body length of about 70 cm. Young growth reaches sexual maturity in 5–10 years. Males mature faster than females. Paddlefish do not breed annually. The intervals between spawning can be from 4 to 7 years.

Fishing, breeding

Fish with a long nose (photo below) is a commercial fish. At the beginning of the last century, its annual catches exceeded 600 tons. In the modern world, in connection with the active development of industry, the construction of dams and, as a result, pollution of water bodies, catches in the USA have significantly decreased. In recent years, attempts have been made to artificially reproduce paddlefish.

In the 70s of the XX century, attempts were made to acclimatize paddlefish in the fisheries of Moldova and in the Krasnodar Territory. On planes, caviar was delivered first to the Soviet Union, and then to fish farms. An interesting fact was noted that in captivity, puberty reached fish much earlier. Females spawned at the age of two years, and males - one year. And currently paddlefish is successfully bred in fisheries in the Kostroma and Voronezh regions, in Primorye. You can hunt for it at private ponds. An ordinary worm is used as bait. Fish on the feeder, bottom tackle.

Fish with a long nose, paddlefish, with the status of threatened species was included in the lists of the International Red Book.

Fish is kept in artificial ponds with vegetation and silt, a depth of two meters and an area of about 70 hectares. The water temperature is maintained at 22-25 degrees. By the age of 2-3 years, paddlefish gaining weight from 2.5 to 5 kg. About 100 kg are grown per hectare with an average fish mass of 2 kg.

Paddlefish meat is rich in trace elements, fatty acids and vitamins. Caviar and meat are expensive. Black caviar is not inferior to sturgeon in quality and value. The fish has a great taste and is used to prepare many culinary masterpieces: barbecue, fish soup, balyk, preserves.

Pointed Long Fish

Istiophoridae (marlin) is a fish with an interesting muzzle structure, developing a speed under water up to 110 km / h. The nose is spear-shaped, long, thin. Two dorsal fins are located close to each other. The back of the fish is dark blue, and the sides have a silver tint. The body is powerful, somewhat flattened on the sides. It feeds on marlin tuna, crab, shrimp, bottom organisms.

Blue marlin males are four times less in weight than females. Marlin is ready for breeding for three years. Fish spawn from August to November; sometimes they breed four times a season. Fertility is high, up to 7 million eggs. Larvae develop very quickly; they can grow from 1 to 16 mm per day. The younger generation has a blue color on the back and white on the abdomen. The tail and fin are light blue.