1. **Containers for Transport**
When transporting live aquatic organisms, the choice of containers depends on the type of species, the distance of transport, and the available resources. Common materials include wood, fiberglass, and plastic. The design and method of delivery vary depending on the region and the specific needs of the transportation process. For example, when transporting freshwater fry or small fish, various containers such as fish rods, canvas buckets, wooden barrels, plastic bags, large bamboo baskets, and even balsa wood crates can be used. For larger volumes, live water transport is often preferred to ensure a higher survival rate. This method involves maintaining a continuous flow of oxygenated water within the container, which helps reduce stress and improve the chances of survival during transit.
2. **Oxygen Supply Equipment**
(1) **Oxygen Cylinders**: These are ideal for small-scale transport. An oxygen cylinder is equipped with a pressure regulator to control the gas flow. A plastic tube is connected to the cylinder’s outlet and placed at the bottom of the container, with an air stone at the end to release fine bubbles. This increases the surface area for oxygen dissolution in the water, ensuring better aeration.
(2) **Aerators**: Water-jet aerators are commonly used in live transport. They not only provide aeration but also help mix the water, ensuring even distribution of oxygen. Other types, such as steel comb and jet aerators, serve similar purposes. When installing aerators, safety must be prioritized—especially around the unit, where a safety net should always be in place to prevent accidents.
(3) **Oxygenating Machines**: These devices are typically installed at the bottom of the transport tank, connected to an oxygen generator via a plastic tube. As air bubbles rise through the water, they facilitate gas exchange, increasing the dissolved oxygen levels. On ships or vehicles, TFDW-type 1000W single-phase brushless AC synchronous generators are often used as power sources, while 93W or 120W electromagnetic air compressors are employed for aeration.
3. **Other Essential Accessories**
In addition to the main equipment, several auxiliary items are essential for efficient and safe transport. These include pressure gauges to monitor oxygen levels, large funnels for easy filling, wooden boxes, cardboard boxes, and foam boxes for packaging, rubber hoses for connecting systems, cotton yarns for sealing, and aprons to protect workers from spills or sharp edges. Each of these items plays a critical role in ensuring the success of live transport operations.
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