Anadromous
Definition
Said of fish or marine species that normally live in seas or oceans but structurally migrate into the fresh waters of rivers to spawn and reproduce. This complex biological behavior, specific to species like salmon, sturgeons, or Pontic shad, involves major physiological and osmoregulatory adaptations to tolerate the abrupt transition from marine salinity to fresh water.
Bilingual Equivalents
- Anadromous
- Anadromous fish
Grammatical & Source Details
| Inflection Type | Variable adjective with standard masculine, feminine, and structural plural variations. |
| Formation | Loanword via French 'anadrome', rooted in ancient Greek combining 'ana-' (upward) and 'dromos' (running, course). |
| Spelling / Pronunciation | [a.na.ˈdrom] |
| Source | The Encyclopedia of Marine Biology and Aquatic Ecology Standards |
Contextual Usage Examples
RO: Somonul este cel mai cunoscut exemplu de pește anadrom, parcurgând mii de kilometri împotriva curentului.
EN: Salmon is the most famous example of an anadromous fish, traveling thousands of kilometers against the current.
RO: Biologii monitorizează comportamentul anadrom al sturionilor pentru a proteja rutele lor de migrație.
EN: Biologists monitor the anadromous behavior of sturgeons to protect their migration routes.
RO: Construcția barajului a perturbat ciclul anadrom al speciilor native, blocându-le accesul la zonele de reproducere.
EN: The construction of the dam disrupted the anadromous cycle of native species, blocking their access to spawning grounds.
Idioms & Phrases
Pește anadrom / Anadromous fish
RO: Organism acvatic care își desfășoară etapele de creștere în ocean și revine structural în râul natal pentru reproducere.
EN: An aquatic organism that undergoes its growth stages in the ocean and structurally returns to its natal river to reproduce.
Migrație anadromă / Anadromous migration
RO: Deplasare în masă a faunei piscicole din mediul salin către cel dulce, declanșată de factori hormonali și sezonieri.
EN: Mass movement of fish fauna from saline to freshwater environments, triggered by hormonal and seasonal factors.
Ciclu biologic anadrom / Anadromous life cycle
RO: Strategie ecologică structurală în care puietul eclozează în râuri, migrează spre mare pentru maturizare și revine la origine.
EN: A structural ecological strategy where fry hatch in rivers, migrate to the sea to mature, and return to their origin.
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