In shrimp farming, the success of the harvest is not only determined by the quality of the shrimp fry and feed, but also by the environmental conditions where the shrimp are raised. The choice of pond material, particularly plastic, is a crucial component that promotes an optimal farming environment.
4 Types of Plastic Often Used in Shrimp Farming
Plastic is commonly used as a base layer for shrimp ponds. Its primary functions are maintaining water quality, anticipating soil porosity, and preventing water leakage.
Shrimp farming often uses the following four types of plastic:
High-Density Polyethylene (HDPE)
HDPE is a type of high-density plastic known for its resistance to chemicals, UV light, and physical pressure.
Advantages
- Durable: It can last 5–10 years depending on the maintenance.
- UV resistant: Does not brittle easily even when exposed to direct sunlight.
- Waterproof: Minimizes pond leaks and maintains water quality.
- Flexible and easy to install: Able to adapt to the pond floor’s contour.
- Chemical resistant: Suitable for long-term use in saltwater environments.
Disadvantages
- Relatively costly: The upfront expenditure for HPDE tends to be quite high.
- Heavy: Requires more effort during installation.
- Difficult to repair: Require special tools like a hot sealer to repair any leaks.
Low-Density Polyethylene (LDPE)
LDPE is a more flexible plastic than HDPE since it can be adjusted to the shape of the pond.
Advantages
- More flexible: Easy to adjust to the shape of the pond base.
- Lower price: A more economical alternative to HDPE.
- Simple installation: Its light weight makes the installation process easier.
Disadvantages
- Less UV resistant: Easily brittle when exposed to constant sunlight.
- Low durability: Shorter service life, around 2–5 years.
- More prone to tearing: Not as strong as HDPE in withstanding pressure or impact.
