1. Sea bream farming: Cultivators use multi-tiered cages to improve cage quality and optimize space utilization. These cages have a diameter of 45 to 50 cm and a height ranging from 100 to 200 cm, with 4 to 10 plastic trays made from steel rods and plastic sleeves. Each layer is spaced 20 to 30 cm apart, and the outer part is covered with a zipper net for easy maintenance. This system allows for efficient feeding, management, and net replacement. The primary feed consists of seaweed and other marine plants, which are both cost-effective and nutritionally rich.
2. Submerged caisson cultivation: This method involves large-scale steel-frame cages measuring 2m x 2m x 0.8m, which are anchored on the seabed for abalone farming. Some structures are open at the top and sides, with internal partitions arranged in a staggered pattern to create sheltered areas. Zippered nets are used to cover the structure, and the entire setup is placed on the sea floor. Feeding mainly consists of kelp and other seaweeds. Compared to eel farming, this environment offers more stability, leading to better growth performance. However, feeding and maintenance can be more challenging due to the underwater setting.
3. Shoreline pool cultivation: In suitable intertidal zones, farmers construct ponds with dikes and place stones, cement boards, and tiles inside as hiding spots for abalone. A portion of the pool wall on the seaward side remains open, allowing for water exchange during low tide. Several water outlets serve as channels between the pond and the surrounding seawater. After low tide, the water level should be maintained at about 1 meter. Seaweed is the main food source, providing a natural and sustainable diet for the abalone.
4. Land-based aquaculture
(1) Multi-layer tank farming: This technique uses long, shallow tanks arranged in multiple layers. The tanks are typically 0.5 to 0.7 meters wide and 0.3 to 0.4 meters deep, with lengths varying from 1 to 10 meters. The spacing between layers is around 0.5 meters. Equipment such as mesh screens and attachment plates helps provide surfaces for abalone to cling to. The feed varies—some farms use seaweed, while others rely on commercial bait. The stocking density ranges from 3 to 5 cm, with 200 to 400 per square meter, and for larger abalone over 6 cm, the density is about 100 to 150 per square meter.
(2) Plastic tank farming in ponds: This system uses plastic tanks that measure 39 cm in length, 30 cm in width, and 12 cm in height. Each tank holds a small number of abalone, and 5 to 7 boxes are stacked vertically and bundled together. These bundles are then placed in a larger pond and arranged in rows, leaving enough space for workers to move between them. Water is refreshed at least 3 to 6 times daily, and continuous aeration is provided 24 hours a day. Fresh or dried kelp is the primary food source, ensuring good growth and health of the farmed abalone.
The video measuring machine is based on CCD digital image, relying on the powerful software capabilities of computer screen measurement technology and spatial geometry operation. After installing the special control and graphic measurement software, the computer becomes the measurement brain with the soul of the software and is the main body of the whole equipment. It can quickly read the displacement value of the optical ruler, and obtain the desired result instantly through the software module operation based on the spatial geometry; A graph is generated on the screen for the operator to compare the image with the image so that the possible deviation of the measurement results can be identified intuitively.
video measuring machine is a high-precision optical image-measuring instrument composed of a high-resolution CCD color lens, continuous zoom objective, color display, video crosshair display, precision grating ruler, multi-function data processor, data measuring software and high-precision workbench structure.
The instrument applies to all application fields for two-dimensional plane measurement. These fields include machinery, electronics, molds, injection molding, hardware, rubber, low-voltage electrical appliances, magnetic materials, precision hardware, precision stamping, connectors, connectors, terminals, mobile phones, home appliances, computers (computers), liquid crystal television (LCD), printed circuit boards (circuit boards, PCBs), automobiles, medical devices, clocks, screws, springs, instruments, gears, cams, threads, radius templates, thread templates Wire and cable, cutter, bearing, screen, test screen, cement screen, screen plate (steel mesh, SMT template), etc.
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