SU1355199A1 - Arrangement for accommodating the crustacea - Google Patents

Abstract

The invention relates to the fishing industry and can be used in the breeding and rearing of crustaceans in various water bodies. The invention is aimed at improving the living conditions of animals, ensuring control over their development and ease of operation. The device is equipped with a device for fixing the disks 2 on the supporting element 1 at a predetermined depth. The disks 2 are made of a material with positive buoyancy and have radial channels of 3 different cross sections for accommodating animals. Channels 3 are curved so that one hole 4 is located on the cylindrical surface of the disk and the other hole 5 is on the lower end of the disk, in addition, the device is equipped with a net capacity 6 for concentrating animals fixed on the bottom of the cylindrical surface of disk 2. 1 h. P. f-ly, 1 ill. S (L coed with cd; o

Description

The invention relates to the fishing industry and can be used in the breeding and rearing of crustaceans in various water bodies.

The aim of the invention is to improve the living conditions of animals, to ensure control over their development and ease of operation.

The device allows for breeding and growing shrimp in water bodies with a natural food supply and oxygen regime, for example, in waste waters of energy facilities, to create the most optimal conditions for acclimatization, reproduction and preservation of the shrimp population, as well as to improve the biotechnology of their growth.

Shrimps use the holes in the discs as shelters that they need for normal living. Highly priced females and juveniles, which usually become easy prey predators, are especially in need of such shelters.

The drawing shows the proposed device.

The device consists of a support element 1, and disks 2 placed on it (one is shown), devices for fixing disks 2 on the support element 1 at a predetermined depth. The disks 2 are made of a material with positive buoyancy, such as foam plastic, and have radial channels of 3 different cross sections for accommodating animals. The channels 3 are made curved so that one hole 4 is located on the cylindrical surface of the disk 2, and the other hole 5 - on the bottom.

For carrying out control catches, the device is equipped with a net capacitance 6 fixed on the lower part of the cylindrical surface of disc 2. To ensure reliable fastening on disc 2, there is a recess 7 — an annular groove. The lower end of the netting capacity 6 is attached to the sleeve 8, which is freely mounted on the supporting element 1. The fixture for fixing the disks includes a pin 9, holes 10 in the supporting element 1 and the sleeves 11, which fix the disks 2 at a predetermined depth. When mounting several disks 2 on the supporting element 1, sleeves 8 are placed between them. A required number of sleeves 11 are also placed between the upper disk 2 and pin 9.

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The device is assembled and installed

in the following way.

The support element 1 is installed at the place of the reservoir necessary for work, a vinyl plastic sleeve 8 is put on it, separating the disk from the base of the support element or the bottom, if not used, then the disk is put on. Further, if the device is assembled for shrimp habitat (like a biotope), a vinyl plastic sleeve and a disk, etc. are put on again. You can wear several disks by adjusting their immersion depth with the help of viniplastic sleeves 11. To prevent the disks from floating up, a pin 9 is inserted into the support element in the hole 10.

To catch shrimp on disk 2 with a pair of rubber rings, put net capacity b (business bag). The size of the chain depends on the tasks assigned to the researcher. The capture is carried out using the behavioral responses of shrimp. All shrimps in shelters sit with a rostrum on the lower end of the disk, which is covered by net capacity 6, and with shock effects on the disk, make a sharp leap back, with the result that they all end up in a net capacity. The pin 9 on the support element 1 is removed, and the disk 2 with the net capacity 6 floats up easily.

To provide a safe shrimp shelter of different age categories, holes in the discs are made of different cross sections (diameters). The discs are easily fixed at any depth of the reservoir by a set of sleeves 8 between the upper disc and the pin, as the young shrimp chooses warmer upper horizons of the water, and mature individuals prefer cool depths.

Due to the presence of net capacity 6 (the size of the cell is chosen by the researcher depending on the task) and the fact that the disks 2 are made of material of positive buoyancy, the shrimp can be caught at any time, the required size category is for scientific purposes and for settling into other water bodies. .

The proposed device is easily and quickly assembled and installed, which provides ease of operation.

Claims (2)

1. A device for habitat of crustaceans, mainly shrimps, including a supporting element and disks placed on it, characterized in that, in order to improve the living conditions of animals, ensure control over their development and ease of operation, it is equipped with a device for fixing disks on a supporting element at a given depth, the disks are made of a material with positive buoyancy, and have radial channels of different cross sections for accommodating animals, the channels are curved so that one hole The coat is located on the cylindrical surface of the disk, and the other is on the bottom. 2. A device according to claim I, characterized in that it is provided with a net container for concentrating animals fixed on the lower part of the cylindrical surface of the disk.