Step 1: Understanding the Concept:
Riverine carp spawn collection techniques: the traditional funnel-shaped shooting net (Benchi jal) is fixed against flowing river currents during monsoon floods to filter and concentrate drifting carp spawn.
Step 2: Detailed Explanation:
In riverine fisheries and traditional carp seed prospecting:
- During South-West monsoon river flooding, fertilized eggs and drifting spawn of Indian Major Carps drift downstream in river margins.
- The Shooting Net (Benchi Jal) is the traditional, universally used specialized fishing gear for collecting riverine carp spawn.
- It is a funnel-shaped, fine-meshed (organdie/cotton netting) filter net anchored with bamboo poles facing the flowing current. The wide mouth captures the drifting spawn, while the narrow tail terminates in a stitched ring opening into a rectangular cloth catch container called the Gamcha, where live spawn is collected undamaged.
Step 3: Final Answer:
Therefore, the popular net used is Shooting net, corresponding to option (C).