anadromous
/əˈnædrəməs/
adjective
- Describing fish that migrate from the sea up rivers to spawn (lay eggs) in freshwater.
- Salmon are anadromous fish that swim upstream to lay their eggs.
- The anadromous life cycle of the shad brings them from the ocean into coastal rivers each spring.
- Dams can block the migration routes of anadromous species like sturgeon.
Antonyms