5 results about "Aquaculture engineering" patented technology

The invention discloses a recirculating water breeding system for simulating natural ocean current and a production promoting method, and belongs to the technical field of aquaculture engineering. The invention discloses a circulating water breeding system and a production promoting method for simulating natural ocean current. The system comprises a culture pond body structure, a bionic water flow stimulation subsystem, a circulating water treatment subsystem and an intelligent control subsystem, the method comprises the following steps of: preparing the system in a pond entering stage of parent fish of the Dongquasichthys nobilis, a gonad development promoting stage, an oviposition inducing stage and a postpartum management stage. The problems that in the prior art, a water flow mode is single and fixed, a gonad development stimulation mode is extensive, artificial insemination is relied on, the automation degree is low, and the overall breeding efficiency is low are solved. According to the method, an integrated circulating water culture environment is constructed, and complex tide and ocean current conditions of a natural spawning site of the Dongcao are accurately simulated, so that gonad development synchronization of parent fishes is effectively stimulated, the natural breeding behavior of the parent fishes is triggered, and the spawning amount and the fertilization rate are remarkably increased.

The invention discloses a net cage contamination identification and tracking integrated device and method based on electromagnetic and optical fusion perception, belongs to the technical field of intelligent marine equipment and aquaculture engineering, is used for net cage contamination identification and cleaning, and comprises an upper computer, a master mobile operation platform and a slave mobile operation platform, each mobile platform carries a multi-mode sensing unit, an intelligent processing unit and a cooperative control system; the method comprises the steps of multi-modal data synchronous acquisition and preprocessing, electromagnetic and optical fusion identification and tracking, accurate positioning and global mapping, and intelligent evaluation and collaborative decision making. Through deep fusion of optical and electromagnetic perception, the precision and robustness of underwater fouling identification are greatly improved, through integrated design of identification and tracking, dual-machine high-precision stable cooperation is realized, and the problem that a single tracking mode is liable to lose tracking is solved.

This invention relates to the field of aquaculture engineering technology, and discloses a gravity-based three-dimensional polyculture system for fish, shellfish, and algae based on intelligent monitoring, and its control method. The system includes a polyculture system net, which is used to optimize ecological efficiency when fish, shellfish, and algae are polycultured. The net contains polyculture support components. In this invention, the polyculture system net enables three-dimensional, stratified polyculture of fish, shellfish, and algae, establishing a complete trophic cascade relationship. Fish uneaten feed and excrement are filtered and utilized by mid-layer shellfish, shellfish metabolites promote the growth of bottom-layer algae, and algae photosynthesis oxygenates the system and absorbs eutrophic salts, forming a closed-loop, highly efficient ecological cycle. Combined with dissolved oxygen sensors, flow meters, and multi-dimensional water quality sensors for collaborative monitoring, the culture density at each layer can be precisely controlled, increasing the system's material conversion efficiency by more than 30% and reducing feed input by 25% compared to traditional monoculture models.

The application discloses a kind of east star spot circulating water breeding system and method for promoting production simulating natural ocean current, belong to aquaculture engineering technical field.The application of a kind of east star spot circulating water breeding system and method for promoting production simulating natural ocean current, system includes: breeding pond body structure, bionic water flow stimulation subsystem, circulating water treatment subsystem and intelligent control subsystem;Method includes system preparation and east star spot parent fish enters pool stage, gonad development promotion stage, spawning induction stage and postpartum management stage.The application solves the problems of single fixed water flow mode, extensive gonad development stimulation method, dependence on artificial insemination, low automation degree and low overall breeding efficiency in the prior art of east star spot circulating water breeding.The application constructs an integrated circulating water aquaculture environment, accurately simulates the complex tidal and ocean current conditions of east star spot natural spawning ground, thereby effectively stimulates parent fish gonad development synchronization, triggers its natural reproduction behavior, and significantly improves spawning quantity and fertilization rate.