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Eupercaria/misc (Various families in series Eupercaria) >
Lethrinidae (Emperors or scavengers) > Lethrininae
Etymology: Lethrinus: Greek, lethrinia, a fish pertaining to genus Pagellus.
More on author: Klunzinger.
Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
Biển Cùng sống ở rạn san hô; không di cư; Mức độ sâu 0 - 150 m (Ref. 2295). Tropical; 31°N - 28°S, 30°E - 134°W
Indo-Pacific: Red Sea, East Africa and the central Indian Ocean to the Marquesas Islands, north to the Ryukyu Islands.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Chín muồi sinh dục: Lm ? range ? - ? cm
Max length : 70.0 cm FL con đực/không giới tính; (Ref. 40637); common length : 59.0 cm SL con đực/không giới tính; (Ref. 37816); Khối lượng cực đại được công bố: 5.4 kg (Ref. 40637)
Các tia vây lưng cứng (tổng cộng) : 10; Các vây lưng mềm (tổng cộng) : 9; Tia cứng vây hậu môn: 3; Tia mềm vây hậu môn: 8. This species is distinguished by the following characters: body moderately elongate, its depth 2.8-3.5 times in standard length; head length 1-1.2 times in body depth, 2.6-3 times in SL, dorsal profile near eye convex; snout length about 1.7-2.5 times in HL, measured without the lip the snout is 0.8-0.9 times in cheek height, its dorsal profile nearly straight, snout angle relative to upper jaw between 45° and 60°; interorbital space distinctly concave; posterior nostril a longitudinal or vertical oblong opening, closer to orbit than anterior nostril; eye situated close to dorsal profile, its length 2.8-5.1 times in HL; cheek height 2.3-3.4 times in HL; lateral teeth in jaws conical; outer surface of maxilla smooth; D X, 9 with the third dorsal-fin spine the longest, its length 2-2.8 times in body depth; A III, 8 with the first soft ray usually the longest, its length approximately equal to or shorter than length of base of soft-rayed portion of anal fin and 1.3-1.7 times in length of entire anal-fin base; pectoral-fin rays 13; pelvic-fin membranes between rays closest to body with dense melanophores; cheek without scales; 47-48 lateral-line scales; 4 ½ scale rows between lateral line and base of middle dorsal-fin spines; 15-16 scale rows in transverse series between origin of anal fin and lateral line; usually 15 rows in lower series of scales around caudal peduncle; 5-8 scales in supratemporal patch; inner surface of pectoral fins without scales; posterior angle of operculum fully scaly. Colour of body yellowish grey with scattered irregular dark spots; lips yellowish, upper lip more intense; a red spot at upper base of pectoral fins; fins bluish grey and mottled, bases of fins lighter and edges of dorsal and caudal fins reddish (Ref. 114226).
Body shape (shape guide): fusiform / normal; Cross section: oval.
Occurs in small groups over seagrass beds, sand and rubble areas of coral reefs, deep channels, and lagoons. Usually found in shallow water to depths of 150 m. Usually seen solitary but sometimes swims in small groups. Juveniles in seagrass beds (Ref. 48635). Feeds mainly on crustaceans, fishes, and echinoderms. Caught mostly with handline, traps,
and trawl (Ref. 114226). Minimum depth reported taken from Ref. 128797.
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
Carpenter, K.E. and G.R. Allen, 1989. FAO Species Catalogue. Vol. 9. Emperor fishes and large-eye breams of the world (family Lethrinidae). An annotated and illustrated catalogue of lethrinid species known to date. FAO Fish. Synop. 125(9):118 p. Rome: FAO. (Ref. 2295)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Reports of ciguatera poisoning (Ref. 130160)
Human uses
Các nghề cá: Tính thương mại; cá để chơi: đúng
Các công cụ
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Estimates based on models
Preferred temperature (Tài liệu tham khảo
123201): 24.5 - 29, mean 27.9 °C (based on 1520 cells).
Phylogenetic diversity index (Tài liệu tham khảo
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.01013 - 0.02262), b=2.96 (2.84 - 3.08), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Mức dinh dưỡng (Tài liệu tham khảo
69278): 3.8 ±0.0 se; based on diet studies.
Thích nghi nhanh (Tài liệu tham khảo
120179): thấp, thời gian nhân đôi của chủng quần tối thiểu là 4.5 - 14 năm (K=0.14-0.30).
Prior r = 0.33, 95% CL = 0.22 - 0.49, Based on 2 data-limited stock assessments.
Fishing Vulnerability (Ref.
59153): High vulnerability (57 of 100).
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Climate Vulnerability (Ref.
125649): Very high vulnerability (76 of 100).
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Nutrients (Ref.
124155): Calcium = 30.6 [21.9, 41.4] mg/100g; Iron = 0.718 [0.493, 0.992] mg/100g; Protein = 20.2 [17.5, 22.3] %; Omega3 = 0.133 [0.100, 0.174] g/100g; Selenium = 55.2 [30.8, 81.2] μg/100g; VitaminA = 28.6 [6.3, 148.6] μg/100g; Zinc = 1.88 [1.47, 2.31] mg/100g (wet weight); based on
nutrient studies.
