Catadromous migration is exhibited by

Options

A. Protopterus
B. Anguilla
C. Hilsa
D. Moloch

Answer

**Step-by-Step Solution:**

1. **Understanding Migration Types**: First, we need to understand the two main types of fish migration: anadromous and catadromous.

2. **Definition of Catadromous Migration**: Catadromous migration refers to the life cycle of certain fish species that spend most of their adult life in freshwater but migrate to saltwater to spawn (breed).

3. **Comparison with Anadromous Migration**: In contrast, anadromous fish, like salmon, live in the ocean as adults and migrate to freshwater to spawn.

4. **Identifying Examples**: A well-known example of catadromous fish is the eel, specifically the species from the genus Anguilla.

5. **Conclusion**: Therefore, catadromous migration is exhibited by eels, particularly those belonging to the genus Anguilla.

**Final Answer**: Catadromous migration is exhibited by eels of the genus Anguilla.

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