Refers to fishes that migrate from fresh water to the ocean to spawn.Compare anadromous. catalysis

(Gk: kata=down; dromos= running) fish that swim down rivers to sea to spawn (eel). See also anadromous.

biology - a fish or other organism living its adult lifestage in fresh water, returning to salt water for spawning

(adj) migrating from fresh water to the sea to spawn

Migrating down river to breed in the sea.

Species spawn at sea and then their young migrate to fresh or brackish water to grow and mature, e.g. American eel; oppositte of anadromous.

Referring to fish that live primarily in fresh water but migrate to salt water to reproduce. Most of the growth takes place in fresh water and no significant feeding occurs when spawning migration com [..]

The opposite of anadromous species, catadromous species spawn in the sea; their young then migrate to fresh or brackish water to grow and mature. The American eel is an example of a catadromous species.

Migrating from freshwater to the sea to spawn, e.g., European eels

A freshwater species of fish that spawns in salt water (e.g. eels).

migrating from fresh to salt water to spawn.

Fish species that live primarily in freshwater, such as lakes, ponds and rivers, but migrate to sea to spawn.

Used to describe fish that spawn in the open sea after spending their lives in fresh water. The most remarkable catadromous fish are freshwater eels of genus Anguilla, whose larvae drift on the open o [..]

(of a migratory fish) that lives in fresh water and breeds in the sea (botany) Of a fern in which the first veins in a frond segment are produced towards the base of the frond.