[Downstream migration and feeding of young coho salmon Oncorhynchus kisutch in the northern part of the range in Kamchatka].
Downstream migration of young coho salmon in the northern part of the range is observed at different ontogenetic stages. Three migration periods were identified: passive migration of yearlings within the spawning river; migration of parr older than 1 year from the spawning tributary to the main river; and migration of smoltifying fish from the river to the sea. The smoltification and seaward migration of the bulk of young salmons from the Kalkaveem River takes place at the age of 2 years. Mass downstream migration of young coho salmons starts in early June at 9 degrees C. No clear diel pattern was observed in the migration of young coho salmon. The lowest migration activity was observed from sunrise to noon (3:00-12:00) when the feeding activity of young salmons increases.
Pavlov
D S
DS
Maslova
E A
EA
D000375:Aging / Q000502:physiology; D000818:Animals; D017684:Oncorhynchus kisutch / Q000502:physiology*; D011157:Population Dynamics; D012098:Reproduction / Q000502:physiology*; D012621:Seasons; D012726:Sexual Behavior, Animal / Q000502:physiology*; D012800:Siberia