contranatantadj.

/kɒntrəˈneɪtənt/

Etymology: < contra- prefix + natant adj.

Of the migrations of fish: against the current.

ΘΚΠ

the world > animals > fish > [adjective] > migrating > against current

contranatant1915

1915 A. Meek in Nature 29 Apr. 231 To define these and other migrations which are intimately associated with currents it is necessary..to introduce two terms which will serve to indicate movement against the current and with the current. My colleague Professor J. Wight Duff recommends a Latin root, natare. The words suggested therefore are contranatant, swimming against the current, and denatant, swimming or drifting with the current. The words contranatation and denatation are also available to indicate the act or habit of migration against or with the current.

1959 A. Hardy Fish & Fisheries viii. 170 Most fish..make a migration up current before spawning and down current after spawning; these are technically known as contranatant and denatant migrations respectively.

Derivatives

ˌcontranaˈtation n.

ΘΚΠ

the world > animals > fish > [noun] > migratory fish > migration > against current

contranatation1920

1920 Rep. Dove Mar. Lab. 40 Evidence to support the theory of contranatation.

This entry has not yet been fully updated (first published 1933; most recently modified version published online March 2018).

单词	contranatant
释义	contranatantadj. /kɒntrəˈneɪtənt/ Etymology: < contra- prefix + natant adj. Of the migrations of fish: against the current. ΘΚΠ the world > animals > fish > [adjective] > migrating > against current contranatant1915 1915 A. Meek in Nature 29 Apr. 231 To define these and other migrations which are intimately associated with currents it is necessary..to introduce two terms which will serve to indicate movement against the current and with the current. My colleague Professor J. Wight Duff recommends a Latin root, natare. The words suggested therefore are contranatant, swimming against the current, and denatant, swimming or drifting with the current. The words contranatation and denatation are also available to indicate the act or habit of migration against or with the current. 1959 A. Hardy Fish & Fisheries viii. 170 Most fish..make a migration up current before spawning and down current after spawning; these are technically known as contranatant and denatant migrations respectively. Derivatives ˌcontranaˈtation n. ΘΚΠ the world > animals > fish > [noun] > migratory fish > migration > against current contranatation1920 1920 Rep. Dove Mar. Lab. 40 Evidence to support the theory of contranatation. This entry has not yet been fully updated (first published 1933; most recently modified version published online March 2018). < adj.1915
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