分類 / Names
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Eupercaria/misc (Various families in series Eupercaria) >
Lutjanidae (Snappers) > Lutjaninae
Etymology: Lutjanus: Malay, ikan lutjan, name of a fish.
Eponymy: Albertus Seba (1665–1736) was a very wealthy Dutch apothecary, zoologist and natural history collector, who published a lavish series of illustrations depicting, in part, marine life of the Indo-Pacific. [...] (Ref. 128868), visit book page.
More on author: Cuvier.
Environment: milieu / climate zone / 深さの範囲 / distribution range
生態学
海; 汽水性の 関連する礁; 深さの範囲 5 - 180 m (Ref. 6390). Tropical; 34°N - 35°S, 30°E - 171°E (Ref. 55)
Indo-West Pacific: southern Red Sea and East Africa to New Caledonia, north to southern Japan, south to Australia.
Length at first maturity / サイズ / 重さ / 年齢
成熟: Lm 54.2, range 49 - ? cm
Max length : 116 cm FL オス/雌雄の選別がない; (Ref. 5738); common length : 60.0 cm TL オス/雌雄の選別がない; (Ref. 55); 最大公表体重: 32.7 kg (Ref. 5738); 最大記録サイズ: 40 年 (Ref. 96972)
背面の脊椎 (合計) : 11; 背鰭 (合計) : 15 - 16; 肛門の骨: 3; 臀鰭: 10. Dorsal profile of head steeply sloped. Preorbital bone broad. Preopercular notch and knob moderately developed. Scale rows on back rising obliquely above lateral line. Generally red or pink, darker on the back; fins are red except the pectorals which is pink. Juveniles and small adults have a dark red band from first dorsal spine through eye to tip of snout; a 2nd band from mid-dorsal fin to pelvic fin; a 3rd from base of last dorsal spine to caudal peduncle. Large adults become uniformly red (Ref. 9710). Note: (TL, cm) = 1.00 + 1.24 (SL, cm); n = 828 (Ref. 1450). Body depth 2.6-3.0 in SL (Ref. 90102).
Body shape (shape guide): short and / or deep; Cross section: oval.
Adults occur in the vicinity of coral or rocky reefs (Ref. 5484), often over adjacent sand flats and gravel patches (Ref. 55). Also trawled in deeper water on relatively flat bottoms. Juveniles are frequently commensal with sea urchins (Ref. 55). Juveniles less than 20 cm long are common in near shore, turbid waters (Ref. 27260), in mangrove areas (Ref. 55), or among both coastal and deeper water offshore reefs (Ref. 27260). Juveniles can also be found swimming amongst the spines of urchins in shallow coastal bays (Ref. 48635). They move to deeper waters as they grow larger (Ref. 27264), with large fish often moving into shallower water during the winter months (Ref. 27260, 27264). They form schools of similar-sized individuals or are solitary (Ref. 6390). Feed on fishes, crabs, stomatopods, other benthic crustaceans and cephalopods. Marketed fresh, dried-salted and frozen (Ref. 9987). Commercially important but in certain regions of the Indian Ocean, large individuals are known to cause ciguatera poisoning (Ref. 11888).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Emperor red snappers are broadcast spawners (Ref. 28009).
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のレッドリストの状況は (Ref. 130435: Version 2025-1)
人間に対する脅威
Reports of ciguatera poisoning (Ref. 11888)
Human uses
水産業: 商業; 水産養殖: 商業; ゲームフィッシュ: はい; 水族館・水槽: 商業
用具
特記事項
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インターネットの情報源
Estimates based on models
Preferred temperature (参照
123201): 22.9 - 28.5, mean 27.1 °C (based on 1153 cells).
Phylogenetic diversity index (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.01050 - 0.01900), b=3.03 (2.94 - 3.12), in cm total length, based on LWR estimates for this species (Ref.
93245).
栄養段階 (参照
69278): 4.1 ±0.4 se; based on diet studies.
Generation time: 6.9 (5.0 - 7.8) years. Estimated as median ln(3)/K based on 12
growth studies.
回復力 (参照
120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (K=0.13-0.38; tmax=35; Fec=5 million).
Fishing Vulnerability (Ref.
59153): High vulnerability (59 of 100).
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Nutrients (Ref.
124155): Calcium = 16.5 [7.9, 30.5] mg/100g; Iron = 0.269 [0.151, 0.543] mg/100g; Protein = 18.3 [16.6, 19.8] %; Omega3 = 0.104 [0.059, 0.177] g/100g; Selenium = 89.2 [42.1, 187.5] μg/100g; VitaminA = 91 [13, 495] μg/100g; Zinc = 0.321 [0.212, 0.502] mg/100g (wet weight);
