Young salmon that are ready to migrate from freshwater to the ocean.
Smolts are important for the environment and the food chain.
Examples:
The smolts swim downstream to the ocean.
The fishermen catch the smolts.
The bear eats the smolts.
The smolts are very important for the big fish.
All the smolts leave the river at the same time.
The smolts are like the teenagers of the fish world.