Ecology Summary - Harpadon nehereus

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Main Ref.	Nakabo, T., 2002
Remarks	Found in sandy-muddy bottoms shallower than 50 m depth (Ref. 41299). Juveniles and/or adults are found in far inshore waters (Ref. 121464). Inhabit deep water offshore for most of the year, but also gathers in large shoals in deltas of rivers to feed during monsoons (Ref. 9987). An aggressive predator (Ref. 9987). Voracious, carnivorous and cannibalistic to some extent. Mainly feeds on small prawns and fishes (Ref. 995).

Main Ref.

Nakabo, T., 2002

Remarks

Found in sandy-muddy bottoms shallower than 50 m depth (Ref. 41299). Juveniles and/or adults are found in far inshore waters (Ref. 121464). Inhabit deep water offshore for most of the year, but also gathers in large shoals in deltas of rivers to feed during monsoons (Ref. 9987). An aggressive predator (Ref. 9987). Voracious, carnivorous and cannibalistic to some extent. Mainly feeds on small prawns and fishes (Ref. 995).

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 Harpadon nehereus 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.	Bapat, S.V., 1970
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	Bapat, S.V., 1970

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	4.08	0.74			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.

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