Ecology Summary - Lutjanus griseus

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Main Ref.	Allen, G.R., 1985
Remarks	Inhabit coastal as well as offshore waters. Found around coral reefs, rocky areas, estuaries, mangrove areas (Also Ref. 128694), and sometimes in lower reaches of rivers (especially the young). Found in freshwater in Florida (Ref. 26938). Often forming large aggregations. Feed mainly at night on small fishes, shrimps, crabs, gastropods, cephalopods and some planktonic items. Carnivore (Ref. 42240, 57616). Easily approached (Ref. 9710).

Main Ref.

Allen, G.R., 1985

Remarks

Inhabit coastal as well as offshore waters. Found around coral reefs, rocky areas, estuaries, mangrove areas (Also Ref. 128694), and sometimes in lower reaches of rivers (especially the young). Found in freshwater in Florida (Ref. 26938). Often forming large aggregations. Feed mainly at night on small fishes, shrimps, crabs, gastropods, cephalopods and some planktonic items. Carnivore (Ref. 42240, 57616). Easily approached (Ref. 9710).

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 Lutjanus griseus may be found.

Habitat

Substrate	Hard Bottom: rocky;
Substrate Ref.
Special habitats	Beds: sea grass; Coral Reefs;
Special habitats Ref.

Associations

Ref.
Associations	schooling;
Associated with
Association remarks	Adults submit to parasite removal by small fishes, e.g. gobies (Gobiosoma oceanops) and porkfish (Anisotremus virginicus).
Parasitism

Feeding

Feeding type	mainly animals (troph. 2.8 and up)
Feeding type Ref.	Bardach, J.E., 1959
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	Allen, G.R., 1985

Trophic Level(s)

Estimation method	Original sample		Unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition	4.23	0.31	4.19	0.71	Troph of juv./adults from 4 studies.
From individual food items	3.88	0.79			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.	Sierra, L.M., R. Claro and O.A. Popova, 1994

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