Ecology Summary - Brachygenys chrysargyreum

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Main Ref.	Randall, J.E., 1967
Remarks	Inhabits exposed rocky areas and coral reefs. Often near elkhorn and staghorn corals (Ref. 9710). Commonly found in schools. Juveniles are encountered in Thalassia beds (Ref. 9626). Adults are observed in coral reefs during the day but enters open waters at night to feed on mainly on plankton (Ref. 9626), but also on small crustaceans and mollusks. Mobile invertebrates feeder (Ref. 33499, 57616).

Main Ref.

Randall, J.E., 1967

Remarks

Inhabits exposed rocky areas and coral reefs. Often near elkhorn and staghorn corals (Ref. 9710). Commonly found in schools. Juveniles are encountered in Thalassia beds (Ref. 9626). Adults are observed in coral reefs during the day but enters open waters at night to feed on mainly on plankton (Ref. 9626), but also on small crustaceans and mollusks. Mobile invertebrates feeder (Ref. 33499, 57616).

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 Brachygenys chrysargyreum may be found.

Habitat

Substrate	: rocky;
Substrate Ref.
Special habitats	Beds: sea grass; Coral Reefs;
Special habitats Ref.	Lieske, E. and R. Myers, 1994

Associations

Ref.	Cervigón, F., 1993
Associations	schooling;
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	3.53	0.18	3.19	0.30	Troph of juv./adults from 2 studies.
From individual food items	3.49	0.48			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.	Randall, J.E., 1967

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