Which one of the following is an exotic Indian fish ?

Options

A. Labeo rohita
B. Cyprinus carpio
C. Clarias
D. Heteropeneustes fossilis

Answer

To determine which of the following is an exotic Indian fish, we need to understand the concept of exotic species or alien species. Here's a step-by-step solution:

### Step 1: Define Exotic Species
Exotic species, also known as alien species, are organisms that are not native to a particular area but have been introduced from another region. This introduction can lead to competition with native species, often resulting in a decline in the native population.

### Step 2: Analyze the Given Options
We need to analyze the fish species provided in the question to identify which one is exotic:
1. **Labio rohita (Rohu)** - This is a freshwater fish native to India and is not exotic.
2. **Cyprinus carpio (Common Carp)** - This fish is found in Asia, including India, and is not considered exotic.
3. **Clarias gariepinus (African Catfish)** - This species is native to Africa and was introduced to India, making it an exotic species.
4. **Heteropneustes fossilis (Asian Catfish)** - This species is native to Asia and is not exotic.

### Step 3: Identify the Exotic Fish
From the analysis, **Clarias gariepinus** is the only fish that is exotic to India as it was introduced from Africa.

### Conclusion
The exotic Indian fish among the given options is **Clarias gariepinus**.

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