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Which one of the following fish is being...

Which one of the following fish is being illegally introduced for aquaculture purposes and is posing a threat to the indigenous catfishes of Indian rivers?
(a) Clarias gariepinus
(b) Nile perch
(c) climbing perch
(d) Protopterus

A

Clarias gariepinus

B

Nile perch

C

climbing perch

D

Protopterus

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding which fish is illegally introduced for aquaculture and threatens indigenous catfishes of Indian rivers, follow these steps: ### Step-by-Step Solution: 1. **Understand the Question**: The question asks for a specific fish species that has been illegally introduced into Indian rivers for aquaculture and poses a threat to local catfish species. 2. **Analyze the Options**: - (a) Clarias gariepinus - (b) Nile perch - (c) Climbing perch - (d) Protopterus 3. **Identify the Fish**: - **Clarias gariepinus**: Known as the African catfish, it has been introduced into various regions, including India, for aquaculture purposes. It is known to outcompete native species and can pose a significant threat to indigenous catfishes. - **Nile perch**: While it is an invasive species, it primarily affects fish populations in Lake Victoria and does not threaten Indian river catfishes. - **Climbing perch**: This fish is also invasive but is not specifically known for threatening indigenous catfishes in India. - **Protopterus**: This is a type of lungfish and does not have a significant impact on Indian catfish populations. 4. **Conclusion**: After evaluating the options, it is clear that **Clarias gariepinus** is the fish that has been illegally introduced for aquaculture and poses a threat to indigenous catfishes in Indian rivers. 5. **Final Answer**: The correct option is (a) Clarias gariepinus.
To solve the question regarding which fish is illegally introduced for aquaculture and threatens indigenous catfishes of Indian rivers, follow these steps: ### Step-by-Step Solution: 1. **Understand the Question**: The question asks for a specific fish species that has been illegally introduced into Indian rivers for aquaculture and poses a threat to local catfish species. 2. **Analyze the Options**: - (a) Clarias gariepinus ...
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