Scratch Saury And Other Fish

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Scratch Saury And Other Fish
Scratch Saury And Other Fish

Video: Scratch Saury And Other Fish

Отличия серверных жестких дисков от десктопных
Video: Scratch Fish Game 2023, February
Anonim
Photo comb
Photo comb

The scraper worm is a boneless animal that affects river and sea fish, less often humans. Infection with this parasite is fraught with acanthocephalosis, a disease whose main symptoms are ailments in the form of gastrointestinal disorders and fever. The worm has a complex life cycle, during which it changes its owners and its shape.

Scrapes (spiny-headed) are small worms up to 7 cm in length. This type of helminth includes 1150 varieties. In cross-section, their body is round, resembling the shape of a cylinder. The anterior end has a highly developed retractable proboscis equipped with sharp hooks. Worms come in different colors: white, red-orange or brown. In this connection, they are easy to find in mackerel when cutting.

These individuals have no circulatory and respiratory systems. The digestive system is in its infancy, so they parasitize on the inner walls of the intestines, absorbing processed food into their bodies. The respiratory process is carried out in a similar way.

All parasites are dioecious - there are females and males. The former are usually larger. Females have two ovaries, a uterus and a vagina. Males are a copulatory organ, two testicles with excretory ducts and cement glands. Worms produce up to 800,000 eggs.

Content

  1. Scraping pathways
  2. Are scrapers dangerous for humans
  3. Diagnostic methods
  4. Treatment
  5. Prevention measures
  6. Output

Scraping pathways

The carriers of these worms are often burbot, pike, whitefish, carp, perch and eel. Scrapes also parasitize in other fish, for example, in pollock. The infection cycle is pretty simple:

  1. The female worm lays eggs in the intestines of the fish.
  2. From there, the eggs, inside which the embryos are located, fall into the reservoir, where they are picked up by molluscs and crustaceans.
  3. In a foreign organism, larvae hatch from the eggs.
  4. The infected crustaceans are eaten by the fish, after which the worm reaches sexual maturity in its intestines.
  5. Then the cycle repeats.
Image
Image

Infection with the worm causes anemia and exhaustion in jaw-totes. Sometimes the fish in the life of the worm acts only as a temporary refuge. In such cases, fish-eating mammals, including humans, become the main ones.

The cyclicity of life stages has been fully studied in only 25 species. Although each case has its own characteristics. Some parasites are able to change the properties and behavior of intermediate prey in order to increase the chances of infection of the latter.

A person who has eaten fish infected with worms is at risk and may become infected. But such cases are rare. For example, in the 80s in a scientific publication on parasitology, information appeared that doctors had discovered a comb in the body of a Japanese fisherman. The patient complained of severe abdominal pain. Most likely, the worm got into his intestines when eating sashimi. The parasite, whose length was 2 cm, provoked injuries in the small intestine, which subsequently festered.

The following routes of infection are distinguished:

  1. Exotic countries where it is customary to eat various insects (likely vectors of the disease).
  2. Eating raw, undercooked, or undercooked fish. Most often there are scrapers in saury, burbot and perch.

Are scrapers dangerous for humans

The spiny-headed worm, penetrating into the intestines, destroys its mucous membrane, which is fraught with the following complications:

  • inflammation;
  • mucosal hypertrophy (nodule formation);
  • bleeding at the site of injury.

People often see parasites in tin cans. Biologists and technologists are calm about this. A scraping in canned saury is not dangerous. After all, the worm has long been dead, and in theory, infection is possible if the parasite was in the initial stage of development. However, these worms accumulate heavy metals that cause serious damage to the human body.

Diagnostic methods

It is possible to establish the correct diagnosis in fish only after opening the carcasses. With intensive infection, jaw-toothed animals are fed with organotin compounds. To reduce the scale of infection, sick fish are caught, and they are actively fighting carriers of the intermediate type.

The period from the moment of infection to the onset of symptoms of the disease is 21 days. After another two weeks, eggs can be found in the stool and the correct diagnosis can be established. Acanthocephalosis is characterized by severe symptoms, partly due to mechanical damage to the intestinal walls. In humans, scraping parasites cause the following signs of infection:

  • sharp pain;
  • bloating;
  • feverish conditions;
  • weight loss against a background of decreased appetite;
  • nausea and vomiting;
  • severe weakness;
  • stool disorders.

It is extremely important to seek timely help from specialists. Since the disease can become chronic.

red worms in canned saury
red worms in canned saury

Treatment

In medicine, there are no special drugs for the destruction of worms. These worms are still poorly understood due to rare infections. You can get rid of parasites with the help of conventional anthelmintic drugs. You just need to seek help from doctors, strictly observe the prescribed dosage and other recommendations.

Prevention measures

To avoid infection, you need to carefully monitor personal hygiene, do not eat raw fish, neglect preservation of suspicious quality. It is important from time to time to carry out the prevention and treatment of pets (especially cats) from helminthic invasions, to poison cockroaches. Following simple guidelines will help reduce the risk of a scraper infection.

Output

Scrapes are more common in river fish, less often in sea fish. Some of the species cause intestinal pathologies that provoke the death of jawbones. To avoid infection, fish meat should be properly heat treated, frozen, or salted for a long time. Non-living scrapers and nematode larvae are safe for human health.

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