分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Carcharhinidae (Requiem sharks)
Etymology: Loxodon: loxos (Gr.), slanting; odon (Gr.), tooth, probably referring to oblique teeth cusps [name first published with no included species; species added by Müller & Henle in 1839] (See ETYFish); macrorhinus: macro-, from makros (Gr.), long; rhinos (Gr.), nose, probably referring to its long, narrow snout (See ETYFish).
More on authors: Müller & Henle.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 居于水底的; 深度上下限 7 - 100 m (Ref. 6871). 熱帶; 34°N - 30°S
Indo-West Pacific: Red Sea and East Africa to Indonesia, north to Japan, south to Australia.
印度-西太平洋: 紅海而且東非到印尼,北至日本, 南至澳洲。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 85.0, range 79 - 90 cm
Max length : 98.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 58048)
背棘 (总数) : 0; 臀棘: 0. A small, very slim shark with a long, narrow snout, big eyes with rear notches, short labial furrows, and small, oblique-cusped teeth with smooth edges; 2nd dorsal fin small, low and behind larger anal fin; interdorsal ridge rudimentary or absent (Ref. 5578). Grey above, pale below, fins with pale edges (transparent in life), caudal and first dorsal fins with narrow dark margin, first dorsal fin also with a dusky tip (Ref. 9997).
一种小的, 非常瘦的鲨鱼有一个长的, 狭窄的吻, 大的眼睛有后面的凹槽，短唇沟, 与小的, 斜的尖牙有平滑的边缘; 第二背鳍鳍小的, 低的而且在较大的臀鳍后面; 间背脊不发达的或不存在.(参考文献 5578) 背面灰色的，腹面灰白的, 鳍有灰白的边缘 (透明的活着时), 尾鳍与第一背鳍鳍有狭窄的深色边, 第一背鳍也有一个暗色的尖端.(参考文献 9997)
Found on continental and insular shelves; mainly near the bottom (Ref. 6871). Feeds on small bony fishes, shrimps and cuttlefish (Ref. 244). Viviparous (Ref. 50449); gives birth annually to litters of 2-4 pups (Ref.58048). Caught in artisanal and small scale commercial fisheries (Ref. 9997). Utilized fresh for human consumption (Ref. 244); meat and fins, but of limited value due to its small size (Ref.58048).
栖息于大陆架与岛屿棚了; 主要地在底部的附近.(参考文献 6871) 吃小的硬骨鱼类，虾与墨鱼。 (参考文献 244) 胎生的.(参考文献 50449) 在鱼民与小鳞片商业的渔场捕获了。 (参考文献 9997) 生鲜使用供人类消费.(参考文献 244)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Viviparous, with a yolk-sac placenta; 2-4 pups per litter. Size at birth 40-43 cm; 54-55 cm TL (Ref.58048). Distinct pairing with embrace (Ref. 205).印度-西太平洋: 紅海而且東非到印尼,北至日本, 南至澳洲。
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)
临近濒危 (NT) (A2d); Date assessed: 19 March 2021
人类利用
渔业: 商业性; 游钓鱼种: 是的
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Estimates based on models
Preferred temperature (Ref.
123201): 24.6 - 29, mean 28 °C (based on 1702 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00490 (0.00229 - 0.01045), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 4.0 ±0.4 se; based on diet studies.
Generation time: 3.3 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (Fec=2).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (46 of 100).
