The most poisonous fishes of Russia
Poisonous fish on the planet much more than poisonous snakes – more than 1250 species (snakes – 410). And every year ichthyologists discover new dangerous species. In this article we are not talking about the exotic inhabitants of the tropical seas, and about ordinary Russian fish living in our rivers. That’s only when you try to use this trivial-looking production in food from fisherman might suddenly begin diarrhea, headache, hallucinations, and other troubles, including death.
Easy Russian fish
Let us first clarify what classes can be divided poisonous fish. So, they are primary and secondary toxic-poisonous. What does it mean? That means there are fish, like snakes produce venom in special glands or by its nature containing in the body dangerous products of metabolism, that is, initially-poisonous.
To secondary poisonous fish are able to accumulate in their bodies a poison contained in the environment. Such environments can be living in the pond poisonous algae or, even worse, fall into the water of toxic human waste.
And if the second paragraph is all clear, and to protect yourself from poisoning very easily (just not enough to catch and certainly not to eat fish caught in suspicious ponds), initially-poisonous things are much more complicated. We begin our story.
Protection from predators
Fortunately, the most dangerous to chelovecheskogo the fish become toxic only during the spawning season. These include: Marinka, barbel, Osman, hamuli. These names are hardly familiar to the Northern fishermen, but those who trades in the upper reaches of the Amu Darya and Syr Darya rivers, in lakes Balkhash and Issyk Kul, they are familiar with. The same Osman, the average length of which up to half, live in the Issyk-Kul lake, in all seasons except spring (spawning period), serves as the object of mass hunting.
Toxic properties of these species are similar. Poisoning in humans is called caviar (maybe in this way the fish are trying to protect their offspring from predators), milk, and abdominal films. If unfamiliar with the peculiarities of his catch, the fisherman decides to eat prey without first cleansing it thoroughly from the guts, ROE or milt and not flushing a strong salt solution, it is instead an afternoon of relaxation await nausea, diarrhea, headache and bluish discoloration of the skin. Very soon the breathing will become labored, then there may come a paralysis of the lower limbs. Death comes from respiratory arrest.
Poisonous substance secreted by these fish, called ciprinidae, and, most worryingly, is not destroyed even by heat treatment. Cyprinidae poisoning and tetrodotoxin (poison secreted by puffer fish) have the same origin and similar impacts. In other words, the Japanese puffer fish has few analogues in Russia.
Also dangerous to humans bile inhabiting the same river carp. When this fish poisoning in humans is failure of the heart.
After reading all this, the lovers of fishing in the Gulf of Finland, Baltic sea or surrounding lakes to relax. Supposedly, Cupid, Issyk-Kul’, Syrdarya, the Ottomans any… this far and not terrible.
Too early to relax. The inhabitants of the Baltic sea are not born yesterday and are able to prepare a lot of unpleasant surprises for uninformed anglers.
For example, in the early twentieth century, the lovers of fishing in the Baltic waters, especially in Fishes-Haff lagoon (Kaliningrad, former Koenigsberg), periodically died from strange afflictions. Its even dubbed Haff disease. The fishermen were amazed mainly the kidneys and the most common disease ended in death. Later, a similar epidemic was observed in the Leningrad oblast, Siberia, near Kharkov and in other areas.
Doctors believe that this disease is associated with ingestion of fish (pike, walleye, burbot, perch, eel and others), which above we called again-poisonous. It is assumed that these species become toxic when they feed on plankton, are leached out of contaminated soil by toxic substances. It is possible that the fish eat some kinds of ergot, falling into the water with reeds in the coastal high water levels and blue-green algae with toxic properties. As a result, the fish becomes poisonous.
Although this disease has been known for almost a hundred years, physicians have explored. We only know that most patient suffer from kidney, heart and skeletal muscle. Through 10-68 hours begin to take feet, there is a sharp pain in the arms, Breasts and back. Difficulty breathing, appears dry mouth, vomiting. Poisoning can be easily identified by looking at the urine of the victim. She becomes red-brown, sometimes almost black. The liver is greatly increased. Even if the person after all of this and survives, he will still remain disabled.
Poisoning fish is very hard to treat. So don’t think that sitting on the shore with a fishing rod and cook fish soup – the safest occupation in the world. Even caught on a hook (especially in spring) common perch may be the last in your life.