City for crayfish

In the 90s, a sir bought 10,000 crayfish to settle in a body of water that flows through his land. And in the fall, the owner of the reservoir decided to catch about 100 crayfish for the annual Swedish crayfish party, but he failed to do this, as crayfish began to migrate to the water bodies of his neighbors. And so, watching a chic banquet with crayfish at the neighbors’, the desperate sir decided to turn to Visiondivision for a solution to his problem. Visiondivision agreed to help their own customer with a way to create an environment suitable for the return of crayfish. Investigating the condition of the reservoir, Visiondivision found out that a lack of pebbles, shelter and calcite may have caused the crayfish to migrate. It was necessary to plan the landscape in such a way as to solve these difficulties..

The design of the site came out hilly. There are ledges on the surface that will allow you to collect crayfish without getting your feet wet. A white path runs along the entire structure, with the help of which crayfish can be collected even in the dark, when the cancer is most active. Waterproof LEDs are built into the bumps. This attracts the crayfish and makes it visible to trappers. In addition, there are rescue holes and safe underground zones for crayfish in the hillocks, so hunting will not be very easy and more humane in relation to crayfish..

The choice of material was very important for the successful implementation of the idea. The entire structure must withstand not only the load of aqua mass, but also several adults and crayfish living in the structure. But at the same time, this entire structure cannot be heavy enough, since there is no access for lifting equipment to the installation site. The choice fell on the material «Butong» — light, slightly transparent concrete, invented by the company with the same name. The thickness of the Butong plate is about 2 cm. There is no reinforcement with a steel net, since the shackle of constant contact with water will lead to the formation of rust. The bud plate is flexible, so you can form bumps. Also, one of the advantages of this material is that it contains calcite, which attracts crayfish..

At the moment, all this chic structure lies in the reservoir and is awaiting the appearance of its own residents. The result was not long in coming. A week later, the first «new settler» appeared.