Ecology Summary - Caranx ignobilis

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Main Ref.	Honebrink, R., 1990
Remarks	Pelagic species which occurs in inshore waters of the continental shelf (Ref. 75154). Usually solitary or in pairs. Adult occurs singly and inhabits clear lagoon and seaward reefs (Ref. 9710). Juvenile found in estuaries. Young usually found in summer (Ref. 4887). Primarily feeds nocturnally but may also feed to a lesser extent during the day (Ref. 122680). Feeds on crustaceans (like crabs and spiny lobsters) and fishes at night (Ref. 4887). Large individual may be ciguatoxic. It’s the largest trevally, reaching 1.7 m in length and a weight of over 60 kg (Ref. 48635). Spawns on shallow seaward reefs and offshore banks (Ref. 37816).

Main Ref.

Honebrink, R., 1990

Remarks

Pelagic species which occurs in inshore waters of the continental shelf (Ref. 75154). Usually solitary or in pairs. Adult occurs singly and inhabits clear lagoon and seaward reefs (Ref. 9710). Juvenile found in estuaries. Young usually found in summer (Ref. 4887). Primarily feeds nocturnally but may also feed to a lesser extent during the day (Ref. 122680). Feeds on crustaceans (like crabs and spiny lobsters) and fishes at night (Ref. 4887). Large individual may be ciguatoxic. It’s the largest trevally, reaching 1.7 m in length and a weight of over 60 kg (Ref. 48635). Spawns on shallow seaward reefs and offshore banks (Ref. 37816).

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 Caranx ignobilis may be found.

Habitat

Substrate	Soft Bottom Hard Bottom: rocky;
Substrate Ref.
Special habitats	Beds: sea grass; Coral Reefs;
Special habitats Ref.	Letourneur, Y., P. Chabanet, P. Durville, M. Taquet, E. Teissier, M. Parmentier, J.-C. Quéro and K. Pothin, 2004

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

Feeding

Feeding type	mainly animals (troph. 2.8 and up)
Feeding type Ref.	Honebrink, R., 1990
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	Honebrink, R., 1990

Trophic Level(s)

Estimation method	Original sample		Unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition	4.22	0.41	4.14	0.65	Troph of juv./adults from 2 studies.
From individual food items	4.48	0.76			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.	Sudekum, A.E., J.D. Parrish, R.L. Radtke and S. Ralston, 1991

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