
<marine biology> Moving from fresh water to the sea, or vice versa, for nonreproductive purposes such as feeding. ... (05 Feb 1998) ...
Found on
http://www.encyclo.co.uk/local/20973

amphidromous 1. Fish which move between fresh and salt water during some part of their life cycles, but not for breeding. 2. Migrating from fresh to salt water or from salt to fresh water at some stage of the life cycle other than the breeding period.
Found on
http://www.wordinfo.info/words/index/info/view_unit/675/
No exact match found.