Ecology Summary - Holocentrus adscensionis

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Main Ref.	Randall, J.E., 1967
Remarks	Occurs in shallow coral reefs, as well as deeper offshore waters (Ref. 3724). A nocturnal species, hiding in deep crevices or under coral ledges during the day; at night it usually moves over sand and grass beds, taking mainly crabs and other small crustaceans (Ref. 3634). Mobile invertebrate feeder (Ref. 126840). Carnivore (Ref. 33499, 40102, 57616). Also cleaned by Elacatinus figaro observed off the coast of São Paulo, southeastern Brazil (Ref. 40102) and by Pomacanthus paru observed at the reefs of the Abrolhos Archipelago, off eastern Brazil (Ref. 40094).

Main Ref.

Randall, J.E., 1967

Remarks

Occurs in shallow coral reefs, as well as deeper offshore waters (Ref. 3724). A nocturnal species, hiding in deep crevices or under coral ledges during the day; at night it usually moves over sand and grass beds, taking mainly crabs and other small crustaceans (Ref. 3634). Mobile invertebrate feeder (Ref. 126840). Carnivore (Ref. 33499, 40102, 57616). Also cleaned by Elacatinus figaro observed off the coast of São Paulo, southeastern Brazil (Ref. 40102) and by Pomacanthus paru observed at the reefs of the Abrolhos Archipelago, off eastern Brazil (Ref. 40094).

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 Holocentrus adscensionis may be found.

Habitat

Substrate	: sand;: rocky;
Substrate Ref.
Special habitats	Beds: sea grass; Coral Reefs; Other habitats: deep-water corals;
Special habitats Ref.	Simon, T., H.T. Pinheiro, R.L. Moura, A. Carvalho-Filho, L.A. Rocha, A.S. Martins, E. Mazzei, R.B. Francini-Filho, G.M. Amado-Filho and J.-C. Joyeux, 2016

Associations

Ref.
Associations
Associated with	Cleaned by Thalassoma noronhanum observed at Fernando de Noronha Archipelago off northeastern Brazil (Ref. 36301).
Association remarks
Parasitism

Feeding

Feeding type	mainly animals (troph. 2.8 and up)
Feeding type Ref.	Randall, J.E., 1967
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	Randall, J.E., 1967

Trophic Level(s)

Estimation method	Original sample		Unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition	3.11	0.29	3.51	0.60	Troph of juv./adults from 2 studies.
From individual food items	3.40	0.49			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.	Randall, J.E., 1967

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