Catadromous fished migrate from

Options

A. Fresh to fresh water
B. Fresh to marine water
C. Marine to fresh water
D. Marine to marine water

Answer

To answer the question about catadromous fishes and their migration, let's analyze the options step by step:

1. **Understanding Catadromous Fishes**: Catadromous fishes are those that migrate from freshwater to saltwater (marine water) to spawn. This is a key characteristic of their life cycle.

2. **Evaluating the Options**:
- **Option 1: Fresh to Fresh Water**: This option is incorrect. Fishes that migrate between freshwater bodies are known as Pothamodromus.
- **Option 2: Fresh to Marine Water**: This option is correct. Catadromous fishes, such as eels, migrate from freshwater environments to marine environments for spawning.
- **Option 3: Marine to Fresh Water**: This option is incorrect. Fishes that migrate from marine environments to freshwater are called anadromous fishes.
- **Option 4: Marine to Marine Water**: This option is also incorrect. Fishes that migrate within marine environments are referred to as oceanodromous fishes.

3. **Conclusion**: After evaluating all the options, the correct answer is **Option 2: Fresh to Marine Water**.