What is composite fish culture?Explain with an example?

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In composite fish culture, a combination of 5 to 6 species is used in a single fishpond.I think 90%.

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4gm of solute is dissolved in 36gm of water .What is the mass percentage of the solution?

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I think 90%.

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Composite Fish Culture

Composite fish culture, also known as integrated fish farming, is a sustainable aquaculture practice that involves the cultivation of multiple fish species in a single pond. This method allows for the efficient utilization of resources and maximizes the productivity of the fish farm.

Benefits of Composite Fish Culture

Composite fish culture offers several advantages over traditional monoculture:

1. Increased productivity: By integrating different fish species, the overall productivity of the fish farm can be significantly increased. Some fish species occupy different ecological niches within the pond, allowing for better resource utilization.

2. Better resource utilization: Different fish species have varying feeding habits and preferences. By combining species with different diets, the available resources in the pond, such as natural food organisms and supplementary feeds, can be utilized more efficiently.

3. Reduced disease risk: In monoculture, the spread of diseases can be devastating as a single pathogen can affect the entire stock. However, in composite fish culture, the presence of multiple species reduces the risk of a single disease wiping out the entire fish population.

4. Improved nutrient recycling: The waste produced by one fish species can serve as a food source for another. This allows for effective nutrient recycling within the pond, reducing the need for external inputs and minimizing environmental impacts.

Example of Composite Fish Culture

One example of composite fish culture involves the cultivation of three popular fish species: catla (Catla catla), rohu (Labeo rohita), and mrigal (Cirrhinus mrigala). These species are commonly found in freshwater ponds and are compatible in terms of their feeding habits and ecological requirements.

In this example, a pond is divided into three compartments using nets or partitions. Each compartment is dedicated to one fish species, allowing for separate management and feeding practices. The fish species are selected based on their compatibility, growth rates, and market demand.

Catla, rohu, and mrigal are herbivorous, omnivorous, and detritivorous fish species, respectively. This combination ensures efficient utilization of food resources in the pond, as they feed on different components of the ecosystem. Catla primarily consumes phytoplankton and plant matter, rohu feeds on zooplankton and detritus, while mrigal consumes detritus and bottom-dwelling organisms.

The integration of these species not only increases the overall productivity of the fish farm but also helps in better nutrient recycling. The waste products of one species become a food source for another, creating a balanced ecosystem within the pond.

In conclusion, composite fish culture is a sustainable aquaculture practice that combines multiple fish species in a single pond. It offers numerous benefits such as increased productivity, efficient resource utilization, reduced disease risk, and improved nutrient recycling. By carefully selecting compatible fish species and managing their feeding practices, farmers can enhance the productivity and profitability of their fish farms.

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