Ecology Summary - Salvelinus alpinus

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Main Ref.	Morton, W.M., 1982
Remarks	Occurs in deep runs and pools of medium to large rivers, and lakes (Ref. 5723). Anadromous forms spend a considerable time of their lives at sea; non-migratory populations remain in lakes and rivers (Ref. 4779). Freshwater populations feed on planktonic crustaceans, amphipods, mollusks, insects and fishes (Ref. 4479, 6258). Among the marine fishes eaten are cottids (Myxocephalus groenlandicus, Triglops pingeli), arctic cod (Boreogadus saida), sand lance (Ammodytes spp.), snailfishes (Liparis spp.) and smaller Arctic char (Ref. 5951). Extremely sensitive to water pollution (cold water and oxygen oriented) (Ref. 2163).

Main Ref.

Morton, W.M., 1982

Remarks

Occurs in deep runs and pools of medium to large rivers, and lakes (Ref. 5723). Anadromous forms spend a considerable time of their lives at sea; non-migratory populations remain in lakes and rivers (Ref. 4779). Freshwater populations feed on planktonic crustaceans, amphipods, mollusks, insects and fishes (Ref. 4479, 6258). Among the marine fishes eaten are cottids (Myxocephalus groenlandicus, Triglops pingeli), arctic cod (Boreogadus saida), sand lance (Ammodytes spp.), snailfishes (Liparis spp.) and smaller Arctic char (Ref. 5951). Extremely sensitive to water pollution (cold water and oxygen oriented) (Ref. 2163).

Aquatic zones / Water bodies

	Marine - Neritic	Marine - Oceanic	Brackishwater	Freshwater
Marine zones / Brackish and freshwater bodies	supra-littoral zone littoral zone sublittoral zone	epipelagic mesopelagic epipelagic abyssopelagic hadopelagic	estuaries/lagoons/brackish seas mangroves marshes/swamps	rivers/streams lakes/ponds caves exclusively in caves

Highighted items on the list are where Salvelinus alpinus may be found.

Habitat

Substrate
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref.
Associations
Associated with
Association remarks	Parasites of the species include 1 protozoan, 1 monogenean, 8 trematodes, 10 cestodes, 11 nematodes, 3 acanthocephalans and 3 copepods; also included are roundworms (Philonema sp.) in the body cavity and immature stages in the viscera and tapeworms (Eubothrium salveline) in the intestinal tract, chiefly in the duodenum and pyloric caeca (Ref. 5951).
Parasitism

Feeding

Feeding type	mainly animals (troph. 2.8 and up)
Feeding type Ref.	Morton, W.M., 1982
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.

Trophic Level(s)

Estimation method	Original sample		Unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition	4.39	0.51	4.27	0.76	Troph of juv./adults from 2 studies.
From individual food items	3.46	0.68			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.	Morton, W.M., 1982

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