Jellyfish, sea anemones, coral polyps, annelid worms, sea cucumbers, sea urchins, starfish, sponges can “burn” or stabbing of a person in contact with them. The range of consequences — from burning the skin before the heart stops.
The most venomous jellyfish is the sea wasp, lives off the coast of Australia. The venom of this beautiful jellyfish paralyzes the heart muscle, death occurs within 1-3 minutes. It seems to be a normal jellyfish light green in color but very poisonous. Its 60 tentacles, each a little less than 40 cm long, has 5,000 flowing down the stings and venom enough to kill 60 people. Australian fishermen, in whose nets such “fish”, beware to use these networks again – you can easily go to the hospital, so strong poison secreted by jellyfish. Continue reading
As you know, climate change and mutation of animals has ceased to be a rarity and few people are surprised. Familiar to the inhabitants of Rome and became such a spectacle: from the waters of the river Tiber at any time of the day popping two-metre catfish, grab birds, politisk too close to the water, and eat them. Eaten can be also rats, mice, otters and even dogs.
These catfish are called “river sharks”. This is not normal peaceful fish, which we used to see in domestic rivers and lakes, and predatory violators of the laws of nature. By studying quick and terrifying mutation data of fishes was carried out by scientists from the University of Toulouse, France.
As a result, they came to the conclusion that it is absolutely uncharacteristic for som behavior is attributable to poor environmental conditions. Because of her, there was a significant depletion of the river bottom, fish and algae huge catfish was not enough to be sated, and they began to “jump” on anything they can catch. There are even cases when catfishes mutants tried to attack the man. Continue reading
For each fish farm must be created its own technological scheme taking into account the strengths and weaknesses of a particular company. Choosing the most effective technology – the first and most important step towards the creation of fish farms.
Depending on the area of the reservoir, its other features the scheme is chosen for its operation. For example, a pond of large area is not effectively stocking of commercial fish. It is more profitable to conduct ichthyological work on the formation of such a species composition of ichthyofauna, which will be the most attractive for fishermen. For waterfront small area is easier to create a high density of valuable fish species and to maintain the desired strength by periodic delivery.
After the preparatory work and perform the required tests prepare the documents necessary to set up a farm. The primary document is a Fish breeding and biological justification, on the basis of which further prepare other documents. Continue reading