Differentiate between pisciculture and aquaculture.

Explanation

### Step-by-Step Solution:

1. **Definition of Pisciculture**:
- Pisciculture refers to the practice of raising and cultivating fish. It involves the breeding, rearing, and harvesting of fish species primarily for food and other products.

2. **Focus of Pisciculture**:
- The primary focus of pisciculture is on fish alone. It includes activities such as growing fish, selling them, and utilizing their by-products like fish oil and fish eggs.

...