bathicadj.
bathic migration n. migration of fish from one depth of water to another.
ΚΠ
1879 G. B. Goode Hist. Menhaden in Rep. Commissioner 1877 (U.S. Comm. Fish & Fisheries) V. App. A. 51 The former may be called equatorial, the latter [i.e. changing to waters of less or greater depth] bathic migration.
This entry has not yet been fully updated (first published 1885; most recently modified version published online June 2021).
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adj.1879