Linked from
The 24 pages that link to Anadromy, each with the reason it gives.
Salmon runNarrower topic: It describes the sea-to-river pattern shared by most salmon runs.
SalmonNarrower topic: Many salmon follow this sea-to-river pattern to reach their spawning grounds.
American shadNarrower topic: American shad follow this marine-to-freshwater reproductive pattern.
IlishNarrower topic: Ilish is anadromous, moving from marine feeding grounds into rivers to spawn.