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Eupercaria/misc (Various families in series Eupercaria) >
Lutjanidae (Snappers) > Lutjaninae
Etymology: Lutjanus: Malay, ikan lutjan, name of a fish.
Eponymy: Rev Dr Christoph Samuel John (1747–1813) was a botanist and herpetologist and a medical missionary (1771–1813) at the Danish trading station of Tranquebar (now Tharangambadi), Tamil Nadu, not far from Madras (Chennai). [...] (Ref. 128868), visit book page.
More on author: Bloch.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina; brackvatten revassocierade; havsvandrande (Ref. 51243); djupintervall 0 - 80 m (Ref. 30573). Tropical; 31°N - 30°S, 30°E - 174°W (Ref. 55)
Indo-West Pacific: East Africa to Fiji, north to the Ryukyu Islands, south to Australia.
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm 51.9 range ? - ? cm
Max length : 106 cm TL hane/ej könsbestämd; (Ref. 132370); common length : 50.0 cm TL hane/ej könsbestämd; (Ref. 55); publicerad maxvikt: 28.5 kg (Ref. 132370)
Taggstrålar i ryggfenan (totalt) : 10; Mjukstrålar i ryggfenan (totalt) : 13 - 14; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 8. Dorsal profile of head steeply sloped. Preorbital width equal to eye diameter or larger. Preopercular notch and knob poorly developed. Scale rows on back parallel to lateral line. Center of each scale often with a reddish-brown spot, giving an overall appearance of series of horizontal lines on side of body. Generally yellow with a bronze to silvery sheen, shading to silvery white on belly and underside of the head. A large black blotch mainly above the lateral line below the anterior dorsal-fin rays.
Body shape (shape guide): fusiform / normal; Cross section: oval.
Adults probably frequent coral reef areas; juveniles found in mangrove estuaries (Ref. 30573). Feed on fishes and benthic invertebrates including shrimps, crabs and cephalopods. In Hong Kong live fish markets (Ref. 27253).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Allen, G.R., 1985. FAO Species Catalogue. Vol. 6. Snappers of the world. An annotated and illustrated catalogue of lutjanid species known to date. FAO Fish. Synop. 125(6):208 p. Rome: FAO. (Ref. 55)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: kommersiell; Vattenbruk: kommersiell; sportfisk: ja
Verktyg
Särskilda rapporter
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Uppskattningar baserade på modeller
Önskad temperatur (Ref.
123201): 25 - 29.1, mean 28.2 °C (based on 1824 cells).
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.01350 - 0.01697), b=2.96 (2.94 - 2.98), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trofisk nivå (Ref.
69278): 4.2 ±0.6 se; based on diet studies.
Generation time: 6.9 (5.2 - 9.5) years. Estimated as median ln(3)/K based on 10
growth studies.
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.10-0.38; tmax=28.6).
Prior r = 0.40, 95% CL = 0.26 - 0.60, Based on 1 full stock assessment.
Sårbarhet i fisket (Ref.
59153): High to very high vulnerability (65 of 100).
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Sårbarhet för klimatet (Ref.
125649): Very high vulnerability (90 of 100).
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Näringsämnen (Ref.
124155): Calcium = 19.6 [12.3, 28.3] mg/100g; Iron = 0.256 [0.165, 0.398] mg/100g; Protein = 18.9 [17.4, 20.2] %; Omega3 = 0.131 [0.095, 0.177] g/100g; Selenium = 69.1 [44.6, 104.8] μg/100g; VitaminA = 113 [19, 416] μg/100g; Zinc = 0.428 [0.346, 0.572] mg/100g (wet weight); based on
nutrient studies.
![Image of Lutjanus johnii (John\](/images/thumbnails/jpg/tn_Lujoh_u0.jpg "Image of Lutjanus johnii (John\")
