Catadromous

Catadromous Fish: Fish that spawns in seawater but feed and spends most of its life in estuarine or fresh water.
Cation: A positively charged chemical. For example, calcium (Ca+2), and Magnesium (Mg+2) are cations.

Catadromous - A fish that is born in salt water but migrates to fresh water where it grows to adulthood. Opposite of Anadromous. The common eel is one of the few examples.

· Catadromous = Gk word that describes migratory species, which they migrate from the fresh water down to the sea for spawning purpose, as for instance the eels
· Cauda (possessive care caudae) = (latin)
· Caudal = see fins ...

A catadromous fish?
An anadromous fish, born in fresh water, spends most of its life in the sea and returns to fresh water to spawn. Salmon, smelt, shad, striped bass, and sturgeon are common examples.

See also: Aquarium, Fish, Species, Water, Spawn