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Teleostei >
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: Valenciennes.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋; 半咸淡水 礁区鱼类; 非迁移的; 深度上下限 5 - 25 m (Ref. 1602). 熱帶; 35°N - 30°S
Indo-West Pacific: Indonesia (including eastern Indian Ocean side), northwestern Australia, Philippines, southern Japan, Papua New Guinea and the Caroline Islands. This species has long been recognized as Lethrinus nematacanthus and the name Lethrinus genivittatus misassociated with many other species.
印度-西太平洋: 印尼 (包括東印度洋側邊) ，澳洲北部，菲律賓，日本南部, 巴布亞新幾內亞與加羅林群島。 這種長的被鑑定為 線棘裸頰鯛〔Lethrinus nematacanthus〕 與名稱 絲棘龍占〔Lethrinus genivittatus〕 與許多其他的種失去關連。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 25.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 2295); common length : 15.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 2295); 最大年龄: 7 年 (Ref. 2290)
背棘 (总数): 10; 背的软条 (总数): 9; 臀棘 3; 臀鳍软条: 8. The only Lethrinus with its 2nd dorsal spine the longest. The inner surface of the pectoral fin may be scaleless, partially covered with scales or densely covered with scales. Body color is tan or brown on the upper sides, white on the lower sides, with three tan or brown stripes. The sides often have scattered irregular black oblique bars and a square black blotch above the pectoral fin and bordering below the lateral line. The head is brown or tan sometimes with several broad, somewhat indistinct vertical and oblique bands (these bands are sometimes composed of fine reticulations). The fins are pale, speckled with small white blotches.
唯一的龙占鱼科鱼类用它的第二背鳍棘最长的。 胸鳍的内面可能是无鳞片的, 部份地覆盖着鳞片或者厚密地覆盖着鳞片。 体色在上侧面上是黄褐色或者褐色, 白色的在下面的侧边上, 有三条黄褐色或褐色斑纹。 侧边时常有分散的不规则的黑色斜纹与在胸鳍上面的一个方形的黑色斑块而且在侧线之下毗邻。 头部是褐色或者黄褐色的有时有一些宽的, 略微不明显的垂直且斜的条纹.(这些条纹有时被由细网眼组成) 鳍是灰白的,有小的白色斑块的斑点。
Solitary or in groups (Ref. 90102). Occurs over shallow sandy and seagrass beds, in mangrove swamps, lagoons, channels and outer reef slopes. May enter rivers. Feeds on crustaceans and small fishes. A protogynous hermaphrodite (Ref. 55367). A protracted spawning peak from July to December is recorded in New Caledonia. Smaller and more numerous females than males have been confirmed in Australian populations. Marketed fresh (Ref. 9775).
在红树林沼泽，舄湖，峡道与外礁斜坡中, 生活在水浅的沙地与海草床之上。 可能进入河。 吃甲壳动物与小鱼。 一个雌性先熟的雌雄同体.(参考文献 55367) 伸长的产卵颠峰从七月到十二月在新加勒多尼亚被记录。 小而众多的雌性超过雄鱼有在澳洲的族群被确认。 在市场上销售生鲜地了。 (参考文献 9775)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
A monandric species (Ref. 55367). Length at sex change = 18.0 cm TL (Ref. 55367). Also Ref. 103751.印度-西太平洋: 印尼 (包括東印度洋側邊) ，澳洲北部，菲律賓，日本南部, 巴布亞新幾內亞與加羅林群島。 這種長的被鑑定為 線棘裸頰鯛〔Lethrinus nematacanthus〕 與名稱 絲棘龍占〔Lethrinus genivittatus〕 與許多其他的種失去關連。
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)
人类利用
渔业: 低经济
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Estimates based on models
Preferred temperature (Ref.
123201): 24.7 - 29.3, mean 28.4 °C (based on 2863 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01349 (0.00868 - 0.02097), b=2.97 (2.85 - 3.09), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.7 ±0.0 se; based on diet studies.
Generation time: 1.3 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (tmax=7; K=0.86).
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).
Nutrients (Ref.
124155): Calcium = 78.8 [52.0, 133.1] mg/100g; Iron = 1.09 [0.68, 1.75] mg/100g; Protein = 20.5 [17.9, 22.8] %; Omega3 = 0.148 [0.096, 0.231] g/100g; Selenium = 33 [19, 62] μg/100g; VitaminA = 29.6 [6.0, 178.6] μg/100g; Zinc = 3.07 [2.21, 4.16] mg/100g (wet weight);
