Explain how each of the following practices can bring about high yield from a fish pond: (a) deweeding: (b) desilting (c) supplementary feeding (d) fertiliz...

Answer Details

(a) Deweeding: Deweeding is the process of removing unwanted aquatic plants from the fish pond. Weeds compete with fish for oxygen, nutrients, and space, and can also harbor predators and disease. By removing weeds, fish can thrive in a healthier and more spacious environment, leading to a higher yield.

(b) Desilting: Desilting involves removing excess sediment or silt from the bottom of the fish pond. Over time, silt accumulates and reduces the depth of the pond, which can lead to overcrowding and poor water quality. By removing the excess silt, the pond can increase its capacity and maintain better water quality, providing a healthier environment for fish to grow and thrive.

(c) Supplementary feeding: Supplementary feeding involves providing additional food to the fish beyond what they can find in their natural environment. Fish that are well-fed grow faster and produce more offspring, leading to a higher yield. It's important to ensure that the supplemental feed is of high quality and appropriate for the type of fish being raised.

(d) Fertilization: Fertilization involves adding nutrients to the water to promote the growth of phytoplankton, which is the base of the food chain in the pond. Phytoplankton serves as food for zooplankton, which in turn is food for fish. By fertilizing the water, you can increase the amount of food available for fish, leading to faster growth and higher yields. It's important to use the right type and amount of fertilizer to prevent overgrowth of algae and other undesirable plant species.