How are fish obtained?

Explanation

### Step-by-Step Solution:

1. **Understanding the Importance of Fish**: Fish are a significant source of animal protein in our diet. They are considered a cheap and nutritious food option.

2. **Methods of Obtaining Fish**: There are two primary methods for obtaining fish:
- **Natural Capture**: This involves capturing fish from their natural habitats, such as oceans, rivers, and lakes. Fishermen use various types of fishing nets and boats to catch marine fish.
- **Fish Farming**: This method is also known as aquaculture or mariculture, depending on the type of water used.
- **Mariculture** refers to the farming of marine fish in seawater. It is used for species that are economically valuable and require specific conditions for growth.
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