Ecology Summary - Berryteuthis magister

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Ecology of Berryteuthis magister

Main Ref.	Roper, C.F.E., M.J. Sweeney and C.E. Nauen, 1984
Remarks	Occurs in the outer edge of continental shelf and slope. Juveniles are mostly in midwater at mesopelagic depths; adults mainly occur in bottom layers in the upper bathyal zone. Exhibits diel vertical migration (Ref. 104112).

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 Berryteuthis magister may be found.

Habitat

Substrate	Benthic: demersal; Pelagic;
Substrate Ref.	Roper, C.F.E., M.J. Sweeney and C.E. Nauen, 1984
Special habitats
Special habitats Ref.

Associations

Ref.	Roper, C.F.E., M.J. Sweeney and C.E. Nauen, 1984
Associations
Associated with
Association remarks
Parasitism

feeding

Feeding type	mainly animals (troph. 2.8 and up)
Feeding type Ref.	Hunsicker, M.E., T.E. Essington, K.Y. Aydin and B. Ishida, 2010
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	Hunsicker, M.E., T.E. Essington, K.Y. Aydin and B. Ishida, 2010

Trophic Level(s)

Estimation method	original sample		unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition
From individual food items	4.27	0.65			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.