Ecology Summary - Sternoptyx diaphana

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Main Ref.	Hopkins, T.L. and R.C. Baird, 1985
Remarks	Oceanic and non-vertical migrant (Ref. 4739). Commonly found in 500-800 m both day and night (Ref. 4054). Possibly a cyclic feeder of copepods, ostracods, euphausiids, amphipods, fishes and other taxa (Ref. 4739). Feed on fewer but larger prey items from regions of cooler overlying water massess and diet was less diverse than that of fish from warmer waters (Ref. 54153). Larger specimens feed on larger food items. Feeding strategy appears to involve capture of the nearest "available" prey within its immediate vicinity (Ref. 54153). Adult photophore complement acquired at 11-13 mm SL (Ref. 4739). Lipid content 1.4 % in fresh body weight and wax ester is 4.2 % in total lipids (Ref. 9193).

Main Ref.

Hopkins, T.L. and R.C. Baird, 1985

Remarks

Oceanic and non-vertical migrant (Ref. 4739). Commonly found in 500-800 m both day and night (Ref. 4054). Possibly a cyclic feeder of copepods, ostracods, euphausiids, amphipods, fishes and other taxa (Ref. 4739). Feed on fewer but larger prey items from regions of cooler overlying water massess and diet was less diverse than that of fish from warmer waters (Ref. 54153). Larger specimens feed on larger food items. Feeding strategy appears to involve capture of the nearest "available" prey within its immediate vicinity (Ref. 54153). Adult photophore complement acquired at 11-13 mm SL (Ref. 4739). Lipid content 1.4 % in fresh body weight and wax ester is 4.2 % in total lipids (Ref. 9193).

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 Sternoptyx diaphana 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.	Hopkins, T.L. and R.C. Baird, 1985
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	Collard, S.B., 1970

Trophic Level(s)

Estimation method	Original sample		Unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition	3.44	0.16	3.22	0.28	Troph of juv./adults from 3 studies.
From individual food items	3.07	0.21			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.	Hopkins, T.L. and R.C. Baird, 1973

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