Скачать или смотреть Green Water, Bubbling Ponds : Inside a High-Tech Fish Nursery

A Little Wisdom Helps You Become Smarter !

In the video, aquaculture workers in waterproof clothing are seen harvesting juvenile Mrigal fish (scientifically known as Cirrhinus mrigala), often referred to as "fry" or "water blooms," from a circular concrete pond. Using handheld nets with fine mesh, they carefully collect the tiny fish into white trays, a critical step before transporting them to larger farms for growth. Below are explanations of key details that viewers might find intriguing:

Why is the water green?
The green tint in the pond is caused by naturally occurring algae. These microscopic plants grow in the water and serve as a primary food source for the fish fry during their early stages. Algae are harmless and even beneficial, reducing the need for artificial feed while maintaining water quality.

What are the bubbles in the water?
The rising bubbles come from an aeration system installed at the pond’s bottom. This system pumps oxygen into the water to meet the high demand of densely packed fish populations. Without constant aeration, low oxygen levels could stress or even kill the fry.

Why use circular ponds?
Circular ponds promote water circulation, preventing debris buildup and ensuring even oxygen distribution. Their design also makes it easier to manage fish density and monitor health.

This footage highlights sustainable practices in fish farming, where balancing natural processes (like algae growth) with technology (aeration systems) ensures healthy stock and efficient production.