Ecology Summary - Arctocephalus gazella

Ecology Summary - Arctocephalus gazella

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Ecology of Arctocephalus gazella

Main Ref.	Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993
Remarks	They prefer rocky habitats; haul out on sandy beaches and move into such vegetation as tussock grass; found out to sea; In winter, males and subadults occur south to the edge of the consolidated pack ice, and can be found haled out on sea ice. Feeds on krill and fish.

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 Arctocephalus gazella may be found.

Habitat

Substrate	Soft Bottom: sand; Hard Bottom: rocky;
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref.	Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993
Associations
Associated with
Association remarks
Parasitism

feeding

Feeding type	mainly animals (troph. 2.8 and up)
Feeding type Ref.	Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993

Trophic Level(s)

Estimation method	original sample		unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition	4.50	0.80			Troph of juv./adults.
From individual food items	4.39	1.00			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.	Reid, K. and P.Y. Arnould, 1996

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