Top rated aquaculture equipment manufacturer: Controlling parasites in flowing aquaculture is one of the most long-standing problems of producers of the global community, especially in the systems whose water flow is continuous, i.e., flow-through, semi-recirculating and hybrid RAS aquaculture systems design (Power et al., 2025). This unceasing flow of water is not only vital in oxygenation but also in the removal of waste, which also provides effective routes through which parasites spread to various tanks and production lines. Many parasites possess mobile infective stages adapted specifically to aquatic hydrodynamics, allowing them to exploit water currents as transport mechanisms to reach new hosts (Mouritsen, 2025). As aquaculture becomes increasingly industrialized, the consequences of even moderate parasitic infestations have grown more severe because stocking densities are higher, production schedules are tighter, and biological stress tolerance among cultured species can be easily exceeded (Madsen & Stauffer, 2024). These pressures have made engineering-based parasite control a necessity rather than an optional management strategy. Among the technology-driven solutions available, the combined use of flow-rate optimization and ultraviolet sterilization has emerged as one of the most effective ways to interrupt transmission cycles and stabilize health performance in flowing aquaculture environments (Li et al., 2023).
The precise control of the farming environment is the core competitiveness of RAS systems. Traditional pond farming is greatly affected by natural fluctuations in weather, water temperature, and water quality, leading to frequent problems such as insufficient dissolved oxygen and pH imbalance, which cause strong stress responses in the farmed organisms and increase the risk of disease outbreaks. RAS systems use intelligent devices to monitor and control key indicators such as water temperature, dissolved oxygen, and ammonia nitrogen in real time, maintaining a stable water environment and keeping the farmed organisms in the best growth state. Data shows that the survival rate of fish and shrimp in RAS systems is 20% to 30% higher than that in traditional ponds, and the growth cycle is shortened by 15% to 20%.
UV strategies are also determined by species and production models. Salmon smolt systems have high requirements of 60-120 mJ since they are prone to protozoans and monogeneans (RK2, 2025). Farms of tilapia, which must operate in warmer and frequently murkier water, use never-ending UV loops with moderate flow-rate modifications. To ensure that larvae are not threatened by zooplankton and bacterial infections, shrimp hatcheries rely on high-dose UV and ultrafine mechanical filtration (FAO, 2020). Twin UV sterilizers are commonly used in marine finfish farms to reduce parasite pressure during the initial stages of production. One of the most effective engineering-based parasite control systems in contemporary aquaculture is the interaction between the optimization of flowrates and UV sterilization. UV neutralizes pathogens prior to their being introduced into the culture units and optimized flow eliminates internally produced infective stages before they can achieve their life cycles. The dual model prevents parasite populations to create self-sustaining cycles and increases survival, feed efficiency, and long-term biosecurity (González et al., 2023).
In the early 21st century, with the rapid development of materials science, new corrosion-resistant, high-strength, and relatively low-cost materials, such as PVC and PE, were widely used in aquaculture facilities and piping systems, greatly improving the durability and stability of these systems. Simultaneously, significant breakthroughs were made in water quality monitoring technology, with the emergence of various high-precision sensors capable of real-time and accurate monitoring of key parameters in aquaculture water, such as temperature, dissolved oxygen, pH, and ammonia nitrogen. Based on this monitoring data, automated control systems became more intelligent, automatically adjusting equipment operation according to changes in water quality, achieving precise control of the aquaculture environment. Furthermore, in the field of aquaculture nutrition and feed technology, in-depth research was conducted on the nutritional needs of different aquaculture species at different growth stages, leading to the development of more precise feed formulations, improving feed utilization, and reducing environmental pollution. During this period, land-based recirculating aquaculture systems (RAS) developed rapidly globally, with Asia, South America, and other regions beginning to vigorously promote and apply this aquaculture model, resulting in a qualitative leap in both scale and technological level. Read many more info at aquaculture equipment supplier China.
Shandong Wolize Biotechnology, with 15 years of experience, ISO/CE certifications and university partnerships, designs and delivers turnkey RAS, high-density flow-through and aquaponic systems. Our equipment operates in 47 countries, powering 22 large-scale projects over 3,000 m³ each. We offer design, installation, training and lifelong support, helping farmers triple yield, cut costs 30 % and meet ASC/BAP standards. The Recirculating Aquaculture System (RAS) is a modern aquaculture technology designed to provide a stable and suitable growth environment for aquatic organisms through efficient water treatment and resource recycling. This system is widely applied in various types of aquaculture, including fish, shrimp, and crab farming, and boasts significant environmental, economic, and production advantages.
The lightweight flow water system isn’t just a cheaper version of RAS – it’s a strategic choice for growth. It gives small and medium-sized farms the power to produce more with less, while maintaining stable water quality and lower costs. By blending smart control with practical design, it paves the way for efficient, data-driven, and sustainable aquaculture in every region. Looking to upgrade your farm without breaking the bank? Explore Wolize’s customizable flow water and RAS Aquaculture System solutions designed specifically for small and medium operations. Visit Wolize’s product page to discover how modular, scalable technology can help you reach your production goals faster and more efficiently. In Saudi Arabia, a land once renowned for its oil, a “blue revolution” is quietly taking shape. Amid the traditional sandy deserts and barren lands, modern galvanized sheet fish pond farms are scattered like stars, forming a striking landscape. Among them, the high-density farming model of tilapia and catfish has achieved an industry miracle of “80 kilograms of fish per cubic meter of water”, and the product advantages and market returns behind it are astonishing.