Ecology Summary - Oncorhynchus kisutch

Sprache:

Main Ref.	Scott, W.B. and E.J. Crossman, 1973
Bemerkungen	The fish occur in the ocean or in lakes; adults return to the rivers where they were born (Ref. 27547). The young fish emerge in springtime and they usually live in fresh water for 1-2 years (sometimes up to 4 years, Ref. 27547); later they migrate at night to freshwater lakes or to the sea (Ref. 1998). Epipelagic (Ref. 58426). The fish that stay more than two years in fresh water and become sexually ripe without ever going to sea, are called residuals; they never spawn (Ref. 27547). Young fish in lakes and rivers eat mainly insects; they stay almost entirely in deep parts of the river and soon become strongly territorial (Ref. 27547). Upon reaching the sea, the smolts remain close to the coast for a certain time, eating planktonic crustaceans (Ref. 27547). As they grow, they migrate farther out into the sea and hunt larger organisms (Ref. 27547) such as jellyfish, squids and fishes (Ref. 58426). They are hunted by various fishes, birds (mergansers, loons and kingfishers), mammals and lampreys (Ref. 1998).

Main Ref.

Scott, W.B. and E.J. Crossman, 1973

Bemerkungen

The fish occur in the ocean or in lakes; adults return to the rivers where they were born (Ref. 27547). The young fish emerge in springtime and they usually live in fresh water for 1-2 years (sometimes up to 4 years, Ref. 27547); later they migrate at night to freshwater lakes or to the sea (Ref. 1998). Epipelagic (Ref. 58426). The fish that stay more than two years in fresh water and become sexually ripe without ever going to sea, are called residuals; they never spawn (Ref. 27547). Young fish in lakes and rivers eat mainly insects; they stay almost entirely in deep parts of the river and soon become strongly territorial (Ref. 27547). Upon reaching the sea, the smolts remain close to the coast for a certain time, eating planktonic crustaceans (Ref. 27547). As they grow, they migrate farther out into the sea and hunt larger organisms (Ref. 27547) such as jellyfish, squids and fishes (Ref. 58426). They are hunted by various fishes, birds (mergansers, loons and kingfishers), mammals and lampreys (Ref. 1998).

Aquatic zones / Water bodies

	Marine - Neritic	Marine - Oceanic	Brackishwater	Freshwater
Marine zones / Brackish and freshwater bodies	Supra-Litoral-Zone Gezeitenzone Kontinentalschelf	epipelagisch mesopelagisch epipelagisch Abyssopelagisch Hadopelagisch	Ästuare/Lagunen/Brackwassermeere Mangroven Sümpfe/Sümpfe	Flüsse/Ströme Seen/Teiche Höhlen ausschließlich in Höhlen

Highighted items on the list are where Oncorhynchus kisutch may be found.

Habitat

Substrat
Substrat Ref.
Besondere Lebensräume
Besondere Lebensräume Ref.

Verbände

Ref.
Verbände
Assoziiert mit
Bemerkungen der Vereinigung
Parasitismus

Fütterung

Art der Fütterung	mainly animals (troph. 2.8 and up)
Fütterungsart Ref.	Scott, W.B. and E.J. Crossman, 1973
Fütterungsgewohnheit	hunting macrofauna (predator)
Fütterungsgewohnheiten Ref.	Scott, W.B. and E.J. Crossman, 1973

Trophic Level(s)

Estimation method	Ursprüngliche Probe		Ungefischte Bevölkerung		Bemerkung
Estimation method	Troph	s.e.	Troph	s.e.	Bemerkung
Von der Zusammensetzung der Ernährung			4.22	0.73
Von einzelnen Lebensmitteln	4.18	0.70			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.	Brodeur, R.D., 1991

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Aquatic zones / Water bodies

Habitat

Verbände

Fütterung