Teleostei (teleosts) >
Carangiformes (Jacks) >
Carangidae (Jacks and pompanos) > Caranginae
Etymology: Megalaspis: Greek, megas, megalos = great + Greek, aspis,-idos = shield (Ref. 45335).
More on author: Linnaeus.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; brackish; reef-associated; depth range 20 - 100 m (Ref. 28016). Tropical; 47°N - 22°S, 40°E - 156°E (Ref. 54577)
Indo-West Pacific: East Africa to Japan and Australia.
Length at first maturity / Size / Weight / Age
Maturity: Lm 22.0  range ? - ? cm
Max length : 80.0 cm TL male/unsexed; (Ref. 3287); common length : 45.0 cm TL male/unsexed; (Ref. 5450); max. published weight: 4.0 kg (Ref. 4883); max. reported age: 5 years (Ref. 104735)
Adults are primarily oceanic, pelagic schooling species rarely seen on reefs (Ref. 48635, 90102). They feed mainly on fishes (Ref. 5213). Generally marketed fresh (Ref. 5284).
Paxton, J.R., D.F. Hoese, G.R. Allen and J.E. Hanley, 1989. Pisces. Petromyzontidae to Carangidae. Zoological Catalogue of Australia, Vol. 7. Australian Government Publishing Service, Canberra, 665 p. (Ref. 7300)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fisheries: highly commercial
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Estimates based on models
Preferred temperature (Ref.
123201): 23.5 - 28.6, mean 27.5 °C (based on 707 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01288 (0.01159 - 0.01432), b=2.93 (2.90 - 2.96), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trophic level (Ref.
69278): 3.9 ±0.57 se; based on food items.
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.13(?)-0.35; Fec=146,400).
Prior r = 0.57, 95% CL = 0.37 - 0.85, Based on 20 data-limited stock assessments.
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (29 of 100).
Climate Vulnerability (Ref.
125649): Very high vulnerability (86 of 100).
Nutrients (Ref.
124155): Calcium = 140 [25, 418] mg/100g; Iron = 1.59 [0.48, 3.65] mg/100g; Protein = 20.8 [19.1, 22.3] %; Omega3 = 0.198 [0.093, 0.452] g/100g; Selenium = 69.4 [22.3, 176.7] μg/100g; VitaminA = 23.1 [5.0, 132.0] μg/100g; Zinc = 0.544 [0.132, 1.912] mg/100g (wet weight); based on
nutrient studies.