Ecology Summary - Cepphus grylle

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Ecology of Cepphus grylle

Main Ref.	SAUP Database, 2006
Remarks	Pursuit diving; pack ice edge; shallow open water; polynyas; <30 km. Arctic Alaska and Canada, Atlantic Coast to Maine, Northern Europe, Scandinavia.

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 Cepphus grylle may be found.

Habitat

Substrate
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

feeding

Feeding type	mainly animals (troph. 2.8 and up)
Feeding type Ref.	Mehlum, F. and G.W. Gabrielsen, 1993
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	Mehlum, F. and G.W. Gabrielsen, 1993

Trophic Level(s)

Estimation method	original sample		unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition	3.50	0.57			Troph of juv./adults.
From individual food items	3.90	0.84			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.	Bradstreet, M.S.W., 1980