About 30 species within the arctic regions belonging to the families Petromyzontidae, Acipenseridae, Anguillidae, Clupeidae, Osmeridae, Salmonidae, and Gasterosteidae exhibit diadromous behavior (i.e., spend part of their lives in the marine environment and migrate to freshwater to spawn, or the converse).    From Wordnik.com.  [Effects of climate change on arctic anadromous fish] Reference

A smelt is a fish of the family Osmeridae, which might naturally have something of a smell to it.    From Wordnik.com.  [MyLinkVault Newest Links] Reference

Isn’t that any of various small silvery marine and freshwater food fishes of the family Osmeridae, found in cold waters of the Northern Hemisphere, especially Osmerus mordax of North America and O. eperlanus of Europe?.    From Wordnik.com.  [NOT EVEN GOD CAN KILL NICK NOLTE] Reference