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Lethrinus erythropterus Valenciennes, 1830

Longfin emperor
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Lethrinus erythropterus   AquaMaps   Data sources: GBIF OBIS
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Image of Lethrinus erythropterus (Longfin emperor)
Lethrinus erythropterus
Picture by Randall, J.E.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii 輻鰭魚綱 (條鰭魚) > Perciformes (Perch-likes) 鱸形目 (Perch-likes) > Lethrinidae (Emperors or scavengers) 裸頰鯛科 (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 生態學

; 海洋 礁區魚類; 非遷移的; 深度上下限 2 - 25 m (Ref. 9710).   熱帶; 25°N - 25°S, 32°E - 173°W

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Indo-West Pacific: Tanzania and Mozambique to Papua New Guinea, Palau, and Caroline Islands. Recently reported from the Penghu Islands (Ref. 55073).
印度-西太平洋: 坦尚尼亞與莫三比克,查哥斯群島,西里伯斯,菲律賓,巴布亞新幾內亞,帛琉與加羅林群島。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 2295); common length : 30.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 2295)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 10; 背的軟條 (總數): 9; 臀棘 3; 臀鰭軟條: 8. This species is distinguished by the following characters: body moderately deep, its depth 2.3-2.5 times in standard length; head length 0.8-1.0 times in body depth, 2.5-2.8 times in SL, dorsal profile near eye nearly straight or slightly convex; snout moderately short, its length about 1.9-2.2 times in head length, measured without the lip the snout is 0.9-1.0 times in cheek height, its dorsal profile concave, snout angle relative to upper jaw between 53° and 64°; interorbital space convex or almost flat; posterior nostril an oblong longitudinal opening, closer to orbit than anterior nostril; eye situated close to or slightly removed from dorsal profile, its length 3.3-4.6 times in HL; cheek moderately high, its height 2.1-2.7 times in HL; lateral teeth in jaws of adults molars or rounded; outer surface of maxilla usually smooth; D X,9, the 4th or 5th dorsal-fin spine the longest, its length 2.7-3.3 times in body depth; A III,8 with the 3rd, 4th or 5th soft ray usually the longest, its length much longer than length of base of soft-rayed portion of anal fin and 0.7-1 times in length of entire anal-fin base; pectoral-fin rays 13; pelvic-fin membranes between rays closest to body without dense melanophores; cheek without scales; 44-46 lateral-line scales; 4 ½ scale rows between lateral line and base of middle dorsal-fin spines; 15-17 scale rows in transverse series between origin of anal fin and lateral line; usually 15 rows in lower series of scales around caudal peduncle; 5-9 scales in supratemporal patch; inner surface of pectoral-fin base densely covered with scales; posterior angle of operculum fully scaly. Colour of head and body brown or rust red, lighter ventrally; sometimes 2 light bars on caudal peduncle; area around eye, a broad streak from eye to tip of snout, lips, and base of pectoral fins red; all fins reddish, often a bright red or orange (Ref. 114226).
尾鰭是只略微分叉,頂端圓的。 胸鰭的內面覆滿鱗片; 鰓蓋的後面的角是完全覆蓋著鱗片。 頭部與身體是褐色或赭紅色, 變成腹部顏色較淡。 有時在梗上有二個淺色的橫帶。 一個寬的白色條紋開始從眼而且結束於吻尖。 胸鰭的唇與基底是紅色的。 鰭是淡紅的, 時常鮮紅色或橘色。

生物學特性     字彙 (例如 epibenthic)

Occurs over coral reefs and adjacent sandy areas. May be solitary or in small groups. Feeds on echinoderms, mollusks, crustaceans, and small fish. Caught mostly by handlines and traps. Marketed fresh. Also caught with handlines (Ref. 9775, 687103).

生活在珊瑚礁與毗連的沙地之上。 可能是獨居性或形成小群魚群。 吃棘皮動物,軟體動物,甲殼動物與小魚。 也用手執的釣絲捕獲。 (參考文獻 9775) 在市場上銷售生鮮地了。 (參考文獻 9775) 在帛琉, 出現沿著外部障礙礁石斜坡深度 2 到 10 公尺的上緣.(參考文獻 37816)

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚

印度-西太平洋: 坦尚尼亞與莫三比克,查哥斯群島,西里伯斯,菲律賓,巴布亞新幾內亞,帛琉與加羅林群島。

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

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 瀕危狀態 (Ref. 120744)

  無危 (LC) ; Date assessed: 09 March 2015

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 27.4 - 29.3, mean 28.7 (based on 1949 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01950 (0.01104 - 0.03443), b=3.09 (2.94 - 3.24), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.7   ±0.51 se; Based on food items.
回復力 (Ref. 69278):  中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
瀕危性 (Ref. 59153):  Moderate vulnerability (38 of 100) .
價格種類 (Ref. 80766):   Very high.