Abstract
Purpose: substantiation and development of structural schemes of live fish containers for fish seining, transporting and releasing, adapted for use in fish traps, which are part of the hydraulic facilities of fish-breeding and fish-breeding-reclamation complexes. Materials and Methods. The experimental base for substantiating the applicability of developing designs for live fish containers for fish traps is made up of survey data of pond and basin fish breeding complexes. The methodological basis for the containers design was formed by technologies and methods of the design theory of new technology. Results. It is shown that the technologies used for seining, transportation and releasing fish stock grown in ponds using permeable (perforated) containers have a negative impact on the physiological state of underyearlings and yearlings of fish, which justifies the applicability of using live fish containers. The requirements for the structures of live fish containers used in fish-catching structures of fish-breeding complexes have been determined. Two competing design schemes of impervious containers with a pneumatic fish release system and a fish outlet port have been proposed. Structurally, containers are made in the form of a prismatic container with impervious sides and a flat bottom. In a container with a pneumatic system, a perforated platform movable by it is provided, which allow ensuring the presence of fish in it and their release into the reservoir depending on its vertical location in the container inner cavity. In the hatch port structure in the bottom of the container, a hatch device is provided with the possibility of moving it to the open and closed positions, the regulation of which allows the fish accumulation, presence and release into the reservoir. Conclusion. As a result of the research carried out, the applicability of using live fish containers was substantiated and two options for their design were proposed.
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