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anadromous
This term is a specialized biological descriptor used primarily in ichthyology and ecology. It describes a specific life cycle pattern where an organism spends most of its adult life in saltwater but migrates to freshwater to reproduce. It is the direct opposite of catadromous, which describes fish like eels that move from fresh water to the sea to spawn.
Because it is a technical scientific term, it is rarely encountered in casual conversation and is typically reserved for academic papers, textbooks, or nature documentaries. It functions as a classifier for species, focusing on the direction of migration rather than the act of swimming itself.
Ý nghĩa
Ví dụ
Salmon are the most well known anadromous fish in the world.
Is the sturgeon an anadromous species or does it stay in the sea?
The river is filled with anadromous fish returning to their birthplace to spawn.
I wonder how anadromous creatures manage the physiological shift from salt to fresh water.
Many anadromous species face extinction due to dams blocking their migration routes.
The professor explained that anadromous migration is essential for the survival of certain fish.
Look at those fish jumping upstream. They must be anadromous.
Anadromous fish spend most of their adult lives in the ocean before moving inland.