Узел гидротехнических сооружений и устройств, обеспечивающих бесконтакную технологию выпуска, облова и перемещения рыб, культивируемых в рыбоводных комплексах

Abstract

Purpose: development of an outlet and fishing structures works, providing for fish release from fish-breeding reservoirs, their seining, transfer and inlet into feeding reservoirs using non-contact technology. Materials and methods. The basis of the research was the data of studying the applied technologies, structures and means of intra-complex fish transfer between fish-breeding facilities and during stocking of reservoirs. Results. When fish are cultivated in fish breeding complexes, it is necessary to transfer them from nursery reservoirs to wild or stocked objects for fish farming and their biological reclamation. When providing fish-breeding activities, fish are released from nursery reservoirs by means of water outlets, seined in fish-traps, transfered and released into a water body. The applied complexes of structures provide for a physical effect on fish, which leads to injury to a part of the fish planting material. To exclude this, design solutions for fish outlet and fish processing facilities and live fish containers operating in the complex, providing the release, seining, transfer and inlet of fish using non-contact technology with technical means are proposed. Conclusions. A layout and design solution for a unit of linearly spaced interconnected fish-breeding structures, including a bottom fish outlet and a container fish trap, providing, when they work together, release and seining fish fry cultivated in fish-breeding reservoirs, is proposed. The applied and proposed technological schemes of functioning of the complex of structures, devices and means for fish release from fish-breeding basins, their catching, transfer and admission to the feeding reservoir are presented. A constructive solution for a live fish container for non-contact fishing, movement and admission of fish stocking material into the reservoir to be stocked is proposed.