Ecology Summary - Nautilus macromphalus

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Ecology of Nautilus macromphalus

Main Ref.	Roper, C.F.E., M.J. Sweeney and C.E. Nauen, 1984
Remarks	Occurs at depths of 0 to 500 m on the continental shelf and slope. Broken shell washed up on beach (Ref. 88739). Has poor vision; instead, utilizes scent and touch to recognize and look for food. At night, it actively forages at 20 m depth. It adjusts gases contained in its chambered body to facility vertical movement (Ref. 101162).

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 Nautilus macromphalus may be found.

Habitat

Substrate	Benthic: mobile; Soft Bottom: mud; Hard Bottom;
Substrate Ref.	Jereb, P. and C.F.E. Roper (eds.), 2005
Special habitats	Coral Reefs;
Special habitats Ref.	Jereb, P. and C.F.E. Roper (eds.), 2005

Associations

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

feeding

Feeding type	mainly plants/detritus (troph. 2-2.19)
Feeding type Ref.	Australian Musuem, 2015
Feeding habit	feeding on dead animals (scavenger)
Feeding habit Ref.	Australian Musuem, 2015

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	3.94	0.59			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.