Columbia subject headings:
Fishes--Homing.
Imprinting (Psychology)
Odors.
Salmon--Homing.
Smell.
Harvard subject headings:
Fishes--Homing.
Imprinting (Psychology)
Odors
Salmon--Homing.
Smell.
Princeton subject headings:
Fishes--Homing.
Imprinting (Psychology)
Odors.
Salmon--Homing.
Smell.