The most dangerous inhabitant of the Black sea
The most dangerous fish in the Black sea, living in coastal areas, is sea dragon, Scorpion, or snake fish. Small fish up to 30 cm long, with elongated body. Coloration yellowish with stripes sides. Bottom-dwelling fish. Buries itself in the ground. Sticking out only the head and dorsal spines full of venom gland.
I do not advise to touch. The poison of these fish causes extreme pain, inflammation, cramps. The symptoms of poisoning by this fish is similar to the Viper bite. If immediately not to accept corresponding treatment, it is possible serious complication, including paralysis of the limbs, loss of consciousness, speech, and in some cases — death.
The Scorpion, or marine fish, is from a family of numerous groupers. But the bogeyman. Big knobby head, on body brown spots and growths. Barbed needles full of poisonous glands. Symptoms of poisoning are similar to the sea dragon. Deaths but is not fixed yet. Continue reading
Top 10 most bizarre sea creatures – Latest world news – Infernal vampire squid lives in the area with a minimal amount of oxygen dissolved in water, and the weight – Japanese crab-spider is 20 kg
The frilled shark
The frilled shark is a species of the genus frilled sharks of the same family. These sharks like strange sea snake or eel than other sharks. Inhabits the Atlantic and Pacific oceans. This rare species is found at the outer edge of the continental shelf and upper continental slope at a depth of 1570 m. due to the presence of primitive features frill shark is called a “living fossil”. The maximum recorded length of 2 m. Color dark brown. The frilled shark breeds besplatnoe the birth. Pregnancy lasts up to 3.5 years, this is the longest period known among vertebrates. The jaws of the frilled sharks are greatly stretched and allow them to swallow prey half their own length. Continue reading
Pond fish farming is an economic sector, aimed to the breeding of fast growing species of fish in specially constructed or adapted for the ponds. It also includes such things as selection and breeding work, the use of intensive technologies of cultivation of fish and acclimatization of new species.
The history of pond fish farms in our territories is rooted in the XIII century Already then to St. Sergius monastery were built by the famous Skete of the ponds. Already then it became clear that to breed the fish much easier and more efficient, although fishing was still the main method of its production.
Artificial ponds for breeding fish are divided into reservoirs and ponds. Reservoirs have multi-year flow regulation and water storage. Ponds – annual (which is a big advantage). Pond fish can have a size from 0.1 hectares or more, the productivity of small ponds is much higher as for large water areas to look harder. Nasushchnye ponds oshivayutsya method of pumping water. Continue reading