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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.
Environment: milieu / climate zone / نطاق العمق / distribution range
البيئة
بحري; مياه مخلوطة مرتبطة بالشعاب; محيطية (Ref. 51243); نطاق العمق 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.
Length at first maturity / الحجم / وزن / العمر
النضج: Lm 51.9 range ? - ? cm
Max length : 106 cm TL ذكر/ مختلط الجنس; (Ref. 132370); common length : 50.0 cm TL ذكر/ مختلط الجنس; (Ref. 55); أعلا وزن تم نشرة: 28.5 kg (Ref. 132370)
الأشواك الظهرية (المجموع) : 10; الأشعة الظهرية الناعمة (المجموع) : 13 - 14; شوكة شرجية: 3; أشعه شرجية لينه: 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).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
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)
IUCN Red List Status (Ref. 130435: Version 2025-1)
استخدامات بشرية
مصائد: تجاري; الأستزراع المائي: تجاري; لعبة سمكه: نعم
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (مرجع
123201): 25 - 29.1, mean 28.2 °C (based on 1824 cells).
Phylogenetic diversity index (مرجع
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.01301 - 0.01682), b=2.96 (2.94 - 2.98), in cm total length, based on LWR estimates for this species (Ref.
93245).
مستوى غذائي (مرجع
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.
المرونه (مرجع
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (K=0.13-0.38).
Prior r = 0.40, 95% CL = 0.26 - 0.60, Based on 1 full stock assessment.
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (65 of 100).
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Climate Vulnerability (Ref.
125649): Very high vulnerability (90 of 100).
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Nutrients (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\")
