Question

The suitable type of hatchery for the Golden mahseer

• A. Circular hatchery
• B. Flow through hatchery
• C. Glass jar hatchery
• D. None

Hint:

Coldwater species like trout and mahseer always require flow-through systems (such as troughs or tray systems) to maintain water temperature and oxygen levels near saturation.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Golden mahseer (Tor putitora) is an endangered coldwater sport fish native to the fast-flowing rivers of the Himalayan region.
Its eggs and larvae require highly oxygenated, cool water with a continuous current to survive and develop.

Step 2: Detailed Explanation:
The eggs of Golden mahseer are demersal, non-adhesive, and highly sensitive to stagnant water conditions.
Traditional circular or glass jar hatcheries designed for warmwater carps do not maintain the required high oxygen levels and constant flow velocities essential for coldwater fish species.
A flow-through hatchery system provides a continuous, gravity-fed supply of cold, clean, and highly oxygenated freshwater.
This design mimics their natural riverine breeding environment, ensuring high hatching and survival rates.

Step 3: Final Answer:
The suitable type of hatchery for the Golden mahseer is Flow through hatchery.