The inhabitants of Bashkiria are worried about the invasion of poisonous spiders - yellow heiracantium, or, as they are also called, yellow saks. Near Ufa, after being bitten by such a spider, two men asked for help from doctors, as reported by IA "Bashinform". They were taken to the infectious diseases hospital, where they were given IVs and injections. Two similar cases occurred last year in the Ufa suburb of Nagaevo. One of the local residents developed blood pressure after being bitten by a yellow saka, and the man almost fainted.
In the summer of 2018, yellow poisonous spiders appeared in the Rostov region. Residents of the Tatsinsky district found them in the courtyards of private houses and posted a photo on a social network to warn their neighbors. And in 2014, the Oryol media reported that yellow sak was found in the region. A spider bit a resident of the region on the lip and hand, as a result, the woman went to the infectious diseases hospital, complaining of an intolerable burning sensation and acute paralyzing pain.
What does yellow sak look like and where is it found?
The yellow sak has a yellow or beige belly with a stripe on the back. He has an orange head with powerful jaws. This spider is small, its length rarely exceeds 10 millimeters, females and males are approximately the same size.
Sak is active at night. The spider can live under stones, is able to settle in living quarters and inside cars.In agriculture, it is considered useful, because it actively destroys pests that are dangerous for the garden and garden.
Yellow sak lives in steppe areas in dry and hot climates. It is found in southern Europe, Central Asia, Africa, as well as Australia and America. Young individuals are able to move over large areas, flying on cobwebs using special flying threads. According to experts, the habitat of the saka has shifted due to climate change, spiders have appeared in Bashkiria, since the climatic conditions in the region have become more comfortable for them.
Why is a yellow saka bite dangerous?
As the Rosselkhoznadzor warns for the Oryol and Kursk regions, the poison of this spider poses a clinical danger to humans. The bite can cause severe pain and result in a necrotic ulcer. The department advises those who accidentally happen to be next to a spider to be extremely careful and bypass its clutches.
Experts say that the spider itself will not attack without reason, it can bite only when it feels danger to life. When meeting a predator or a person, a yellow saka can trigger a defensive reaction, and he is able to use his powerful jaws, Mikhail Krivosheev, director of the Zoological Museum of the Bashkir State University, explained to the Bashinform agency. Scientist-arachnologist Alexander Gladkikh told the publication that a poisonous spider should be especially feared by people with allergies. In the event of a bite, the expert advises to disinfect the wound, take an antiallergic drug and consult a doctor.If a yellow sak is found in the house, it should not be taken with bare hands, but you can cover it with a jar on top, put a leaf underneath and take it away from the house.
Area: Western Pacific and Eastern Indian Ocean. In its natural environment, it lives in shallow lagoons and coastal coral reefs at a depth of 1 to 13 meters. Systematics. Chrysiptera hemicyanea belongs to the Pomacentridae family.
Chrysiptera yellow-bellied - unpretentious in content, perfect for the first steps in the marine aquarium. The combination of bright coloration and sufficient ease of maintenance makes this species one of the ideal candidates for launching a marine aquarium.
Appearance: bright fish. The body is painted in a bright blue, saturated color. The caudal, anal, and pelvic fins, as well as the belly, are bright yellow. The border between two differently colored areas of the body is clear. Outwardly, Chrysiptera hemicyanea is similar to Chrysiptera parasema, but in C. parasema only the stem and lobes of the caudal fin are yellow. Maximum size: 6-7 cm. Housing conditions: for a group of 5-7 individuals, an aquarium with a volume of 100 liters or more is required, but in principle it can be kept in a smaller volume. Water temperature: 22-28 ° C, pH 8.1-8.4, water hardness 1.023-1.025. Yellow-bellied chrysiptera has a low susceptibility to moderate nitrate content in water, but it is better not to allow an increase in nitrate concentration in a marine aquarium.
Feeding: in the choice of food, the yellow-bellied chrysiptera is unassuming. In the aquarium, this species will eat any type of food: brine shrimp, frozen food, shrimp, flakes and other dry food.
Features of behavior: despite its small size, yellow-bellied chrysiptera will show aggressiveness, primarily in relation to representatives of its own species and closely related species. For this reason, it is better to choose a spacious aquarium, especially if you plan to keep other representatives of the center.