This is a migratory fish

The correct option is Salmon.

Migration in fish refers to the regular movement of fish from one environment or habitat to another, typically for breeding (spawning), feeding, or finding optimal temperatures.

Salmon are famous for being anadromous fish. This means they are born in freshwater rivers and streams, migrate to the marine environment (the ocean) to feed and grow into adults, and then undertake a long, grueling journey back to their exact freshwater birthplace to reproduce and spawn.

Let's look at why the other options do not fit the description of a typical migratory fish:
- Carp: These are primarily freshwater fish that remain in their local lakes, rivers, or ponds throughout their lives and do not undertake long-distance migrations between oceans and rivers.
- Ribbon fish: Although they may show localized movements based on depth or season, they do not undergo long-distance migrations between freshwater and marine habitats like salmon do.
- Shark: While some sharks cover large distances in the ocean, they generally remain within marine environments and do not exhibit the classic freshwater-to-saltwater life cycle migration characteristic of fish like Salmon.