Question

In the aquaponics system, which of the following fishes are suitable for culture?

• A. Silver carp
• B. Catla
• C. Tilapia
• D. Pacu

Hint:

Tilapia is often called the "aquatic chicken" because of its ease of culture and versatility. In aquaponics, "hardy" is the keyword when choosing a fish.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Aquaponics is the integration of aquaculture (fish farming) and hydroponics (soilless plant culture) in a symbiotic environment. The ideal fish for such a system must be hardy, tolerant of high densities, and produce sufficient waste (nutrients) for plant growth.
Detailed Explanation:
Tilapia is widely considered the best species for aquaponics, especially for beginners and commercial operators, for several reasons:
1. Hardiness: They can tolerate wide ranges of water quality, including low dissolved oxygen and high ammonia levels, which can occur during system fluctuations.
2. Growth Rate: They grow very quickly and reach marketable size in 6-9 months.
3. Feeding: They are omnivorous and accept a variety of artificial feeds, making nutrient management for the plants easier.
4. Temperature: Tilapia thrive in the warm water conditions that are also ideal for many aquaponic plants like basil and tomatoes.
While carps like Catla and Silver carp are important for pond culture, they are less suited for the intensive, high-density recirculating environment of a typical aquaponics setup.

Step 2: Final Answer:
Tilapia is the most suitable fish for aquaponics.