Which of the following fishes is exotic species introduced in India for aquaculture -

Options

A. Dog fish
B. Shark
C. Catfish (Clarias)
D. Labeo

Answer

To solve the question of which fish is an exotic species introduced in India for aquaculture, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for an exotic fish species that has been introduced in India specifically for aquaculture purposes.

2. **Identify the Options**: The options provided are Dogfish, Catfish (Clarias), and Labio (Labio rohita).

3. **Analyze Each Option**:
- **Dogfish**: This fish is typically found in marine environments and is not an introduced species in India. It is a natural inhabitant of the sea.
- **Catfish (Clarias)**: This species is known to have been imported from Australia to India. Its introduction has had significant impacts on local fish populations and aquaculture practices.
- **Labio (Labio rohita)**: This is an endemic species in India and is commonly used in local aquaculture. It is not an exotic species.

4. **Determine the Correct Answer**: Based on the analysis, the only fish that qualifies as an exotic species introduced in India for aquaculture is **Catfish (Clarias)**.

5. **Conclude**: Therefore, the correct answer to the question is **Catfish (Clarias)**.

### Final Answer:
**Catfish (Clarias)** is the exotic species introduced in India for aquaculture.

---