catadromous

English

From cata- +‎ -dromous, by analogy with anadromous. Compare catanadromous.

catadromous (comparative more catadromous, superlative most catadromous)

(ichthyology, of a migratory fish) Living in fresh water as an adult, but breeding in the sea.
- 2017, James C Scott, chapter 1, in Against the Grain, New Haven & London: Yale, →ISBN, page 53:
  Bird migration routes favor marshes and river valleys, as do, more obviously, the movement of anadromous salmon and, the mirror image, catadromous eels, to mention only two of the numerous migrating fish species.
(botany) Of a fern in which the first veins in a frond segment are produced towards the base of the frond.

of migratory fish

of a fern