Ecology Summary - Hoplerythrinus unitaeniatus

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Main Ref.	Planquette, P., P. Keith and P.-Y. Le Bail, 1996
Remarks	Inhabits swamps and creeks with little current (Ref. 12225), as well as in flooded savannas (Ref. 27188). Regularly goes to the surface of the water to breathe. Can survive long periods out of the water. This behavior of breathing air at the surface makes the fish vulnerable to predation by electric eels (Ref. 27188). Is a predaceous omnivore of open waters. Feeds on aquatic invertebrates, lesser degree on fish and terrestrial insects (Ref. 9089).

Main Ref.

Planquette, P., P. Keith and P.-Y. Le Bail, 1996

Remarks

Inhabits swamps and creeks with little current (Ref. 12225), as well as in flooded savannas (Ref. 27188). Regularly goes to the surface of the water to breathe. Can survive long periods out of the water. This behavior of breathing air at the surface makes the fish vulnerable to predation by electric eels (Ref. 27188). Is a predaceous omnivore of open waters. Feeds on aquatic invertebrates, lesser degree on fish and terrestrial insects (Ref. 9089).

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 Hoplerythrinus unitaeniatus 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.	Boujard, T., M. Pascal, F.J. Meunier and P.-Y. Le Bail, 1997
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	Mérona, B. de and J. Rankin-de-Mérona, 2004

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	3.41	0.49			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.

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