Lớp phụ (Subclass) cá vây tia
(Perch-likes) > Lutjanidae
(Snappers) > Lutjaninae
Etymology: Lutjanus: Malay, ikan lutjan, name of a fish. More on author: Forsskål.
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
; Biển; Nước ngọt; Thuộc về nước lợ Cùng sống ở rạn san hô; Mức độ sâu 4 - 180 m (Ref. 37816), usually 10 - 70 m (Ref. 30573). Tropical; 31°N - 33°S, 31°E - 128°W (Ref. 55)
Indo-Pacific: East Africa to the Marquesas and Line islands, north to the Ryukyu Islands, south to Australia. More common around oceanic islands than in continental areas.
Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm 42.9, range 39 - ? cm
Max length : 90.0 cm TL con đực/không giới tính; (Ref. 9987); common length : 76.0 cm SL con đực/không giới tính; (Ref. 37816); Khối lượng cực đại được công bố: 12.5 kg (Ref. 4699); Tuổi cực đại được báo cáo: 55 các năm (Ref. 72420)
Các tia vây lưng cứng (tổng cộng): 10; Các vây lưng mềm (tổng cộng): 13-14; Tia cứng vây hậu môn 3; Tia mềm vây hậu môn: 8. This species is distinguished by the following characters: moderately deep body, its greatest depth 2.4-2.9 in SL; distinct groove or pit from nostrils to the front of the eye; preopercular notch and knob moderately developed; vomerine tooth patch narrow crescentic, without a medial posterior extension; gill rakers of first gill arch 6-7 + 16 = 22-23 (including rudiments). Colour of body dark reddish-brown with faint dark stripes; young and some adults with two silvery-white spots on back; pectoral fins pink with dorsal edge prominently black; juveniles sometimes have caudal end of body and the tail white. mimicking Chromis damselfishes (Ref. 9821, 90102).
Adults inhabit coral reefs, including sheltered lagoons and outer reefs (Ref. 30573). Usually found singly, often adjacent to steep outer reef slopes, but occasionally found in groups (Ref. 9710). Feeds mainly on fishes, but also take shrimps, crabs, amphipods, stomatopods, gastropods and urochordates. Large fish from oceanic areas in the western Pacific are often ciguatoxic, e.g., in Tuvalu (Ref. 9513). Caught mainly with handlines and bottom longlines (Ref. 9821). Utilized fresh and dried-salted (Ref. 9987). Juveniles mimic Chromis damselfishes (Ref. 90102).
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. 120744)
CITES (Ref. 118484)
Threat to humans
Reports of ciguatera poisoning (Ref. 4690)
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Estimates based on models
Preferred temperature (Ref. 115969
): 24.5 - 29, mean 28 (based on 2402 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01259 (0.00815 - 0.01945), b=3.00 (2.88 - 3.12), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Mức dinh dưỡng (Ref. 69278
): 4.3 ±0.5 se; Based on diet studies.
Generation time: 12.1 ( na - na) years. Estimated as median LN(3)/K based on 2 growth studies.
Thích nghi nhanh (Ref. 120179
): Trung bình, thời gian nhân đôi của chủng quần tối thiểu là 1.4 - 4.4 năm (K=0.11-0.33; tmax=13).
Prior r = 0.41, 95% CL = 0.23 - 0.71, Based on 1 stock assessment.
Vulnerability (Ref. 59153
): High to very high vulnerability (69 of 100) .