On September 8, 2025, the severe tropical storm "Taba" made a direct impact on the coast of Taishan, Guangdong Province, with winds of 12 to 13 on the Beaufort scale. The surging waves continued to crash against the aquaculture facilities on the sea surface. However, the modular gravity deep-water fish and oyster cages of Dajin Island Oyster Industry Technology stand firm like steel fortresses, with tens of thousands of oysters in the cages unharmed, achieving "zero loss" during the passage of typhoons. Behind this miracle, the synergistic effect of marine-specific HDPE reinforced materials and scientific protection systems has provided a brand-new technical paradigm for the global oyster farming industry to combat typhoon disasters. ​

The typhoon resistance achievements of Dajin Island are no accident. Its net cages are made of extra-large one-piece L-shaped injection-molded HDPE reinforcing materials. Through a flexible connection design, they ingeniously mitigate the impact force of wind and waves. Combined with PP storm clamps installed at intervals of 50cm and 10.5mm HDPE storm line, they form a multi-protective network. This combination not only enables the net cage to pass the 14-level wind and wave test, but also maintains an impact strength of 15kJ/m² in a low-temperature environment of -20 ℃, perfectly meeting the fixation requirements of oyster cages. ​

ก่อนที่พายุไต้ฝุ่นจะมาถึงทีมงานด้านเทคนิคใช้ประโยชน์จากคุณสมบัติ "3 วินาทีเร็ว" ของแคลมป์พายุ PP เพื่อเสริมกำลังกรงหอยนางรมหกเหลี่ยมหลายร้อย (28 × 10.8 × 6.4 นิ้ว) ระบบป้องกันสำเร็จรูปนี้ช่วยให้สิ่งอำนวยความสะดวกในการผสมพันธุ์สามารถรักษาความมั่นคงของโครงสร้างในลมแรงในขณะที่บัฟเฟอร์กองกำลังภายนอกผ่านความเหนียวของวัสดุ เมื่อเทียบกับการติดตั้ง Snap-On โลหะแบบดั้งเดิมประสิทธิภาพจะเพิ่มขึ้นสามครั้งและไม่มีความเสี่ยงต่อการเกิดสนิม ในฐานะผู้อำนวยการด้านเทคนิคของเกาะ Dajin กล่าวว่า: "การออกแบบกรงของเรามีอายุการใช้งาน 50 ปีและระบบพายุพายุและระบบแคลมป์พายุช่วยลดค่าใช้จ่ายในการป้องกัน 70% ในช่วงฤดูไทรฟูนแต่ละฤดู" "

While Chinese farmers were quickly resuming production after the typhoon, most coastal aquaculture areas around the world were still suffering from the heavy blow of natural disasters. In 2013, Typhoon Haiyan in the Philippines destroyed 80% of oyster rafts and cages in the Visayas region, causing 16,500 farmers to lose their livelihoods. The losses in the aquaculture industry alone accounted for 33% of the national total output. During Hurricane Nate in the Gulf of Mexico in 2017, the loss rate of unreinforced floating oyster cages due to fixation failure was as high as 40%. Even with the use of sunken protective cages, 30% of oysters were lost due to the breakage of ordinary PE ropes. ​

What is even more serious is the damage caused by Hurricane Michael in 2023 to oyster beds in the southeastern United States. The nylon ropes used for fixation became brittle and broke within just 36 hours under the influence of salt spray and strong winds. Traditional metal clips, due to rust and sticking, could not be quickly reinforced, eventually causing 60% of the shallow-sea oyster cages in the Gulf of Florida to capsize. These cases have exposed the significant shortcomings of international aquaculture equipment in terms of weather resistance, installation efficiency and coordinated protection. ​

A comparison of the disaster response effects at home and abroad shows that the gap in typhoon resistance capacity stems from the dual differences in material selection and system design. The HDPE storm line used on the Big Bay Island has a tensile strength of 1 ton per foot. Combined with the arc-shaped slot design of the PP storm clamp, it shows no damage in the 1000-hour salt spray test. This combination has an 8-times longer lifespan than the common nylon ropes widely used in the Philippines and a 90% lower cost than the traditional metal clamps in the Gulf of Mexico. ​

This protective system demonstrates extremely strong adaptability for different aquaculture scenarios: In shallow and medium sea oyster farming, the friction coefficient between HDPE storm lines and 28-mesh oyster nets is 40% lower than that of ordinary ropes, reducing the wear of oyster shells. When used in deep-sea aquaculture in conjunction with 316 stainless steel storm clamps, it can bear a load of 15kN and is suitable for large aquaculture cages with a single cage weight of over 50kg. For the intertidal zone, the PET float that comes with it can provide additional buoyancy support, keeping the entire system stable during rising and falling tides. ​

The practice on Dajin Island has proved that scientific protection can not only reduce losses but also create long-term economic benefits. Based on a 10-mu breeding scale, although the initial investment of the "HDPE storm line + PP storm clip + modular net cages" combination is 15% higher than the traditional solution, the average annual maintenance cost is reduced by 60%, and the total cost is saved by 74% over a 50-year usage period. This model of "high input - low loss - long service life" has completely changed the traditional concept in the breeding industry that "emphasizes breeding but neglects protection". ​

At present, this technical solution has been verified on-site in typhoon-prone areas such as Southeast Asia and South America. In the demonstration base of Khanh Hoa Province, Vietnam, the loss rate of oyster farms using the same protective system dropped from 55% to 8% during the 2024 typhoon season. Farmers in Bahia State, Brazil, have increased the integrity rate of oysters during the harvest period to 92% by using HDPE oyster bags in combination with storm clips for fixation. These practices have confirmed the global adaptability of China's typhoon-resistant aquaculture technology. ​

ด้วยการเกิดสภาพอากาศที่รุนแรงบ่อยครั้งอุตสาหกรรมการทำฟาร์มหอยนางรมจึงเปลี่ยนจาก "ความอดทนแบบพาสซีฟ" เป็น "การป้องกันที่ใช้งานอยู่" กรณีที่ไม่มีการสูญเสียของเกาะ Dajin ในช่วงพายุไต้ฝุ่น Taba และการประยุกต์ใช้วัสดุ HDPE และระบบป้องกันแบบแยกส่วนได้จัดทำตัวอย่างความต้านทานต่อภัยพิบัติแบบจำลองได้สำหรับการเพาะเลี้ยงสัตว์น้ำทั่วโลก