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Negaprion acutidens (Rüppell, 1837)

Sicklefin lemon shark
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Negaprion acutidens   AquaMaps   Data sources: GBIF OBIS
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Chinese Taipei (Taiwan) country information

Common names: [No common name]
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs off east coast of Taiwan (Ref. 9997).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/tw.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Shao, K.-T., S.-C. Shen, T.-S. Chiu and C.-S. Tzeng, 1992
National Database: The Fish Database of Taiwan

Common names from other countries

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) > Carcharhiniformes (Ground sharks) 白眼鮫目 (Ground sharks) > Carcharhinidae (Requiem sharks) 白眼鮫科 (Requiem sharks)
Etymology: Negaprion: negatus (L.), to deny; prion (Gr.), saw, referring to lack of saw-like serrations on teeth cusps. (See ETYFish);  acutidens: acutus (L.), sharp or pointed; dens, from dentis (L.), tooth, probably referring to pyramid-like teeth (“dünnen spitzen Pyramiden”). (See ETYFish).
  More on author: Rüppell.

Environment: milieu / climate zone / depth range / distribution range 生态学

海洋; 半咸淡水 礁区鱼类; 深度上下限 0 - 92 m (Ref. 244).   熱帶; 30°N - 32°S, 32°E - 140°W (Ref. 244)

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Indo-Pacific: Red Sea and South Africa (including Mauritius, Seychelles, Madagascar) to Philippines, north to Viet Nam, south to Australia. Also from Palau, Marshall Islands, and Tahiti. Recorded from Taiwan (Ref. 4868).
印度-太平洋: 紅海與南非 (包括模里西斯,塞錫爾群島, 馬達加斯加) 到菲律賓, 北至越南, 南至澳洲。 也從帛琉,馬紹爾群島與大溪地島。 記錄自台灣了。 (參考文獻 4868)

Length at first maturity / 大小 / 重量 / 年龄

Maturity: Lm 230.0, range 220 - 240 cm
Max length : 380 cm TL 雄鱼/尚未辨别雌雄; (Ref. 5213)

简单描述 检索表 | 型态特徵 | 形态测量图

背棘 (总数) : 0; 臀棘: 0. A large, stocky, yellowish shark with a broad, blunt snout, narrow, smooth-cusped teeth in both jaws, and equal-sized dorsal fins (Ref. 5578). Yellowish brown above, paler below (Ref. 9997). With two nearly equally large dorsal fins (Ref. 37816).
一大的,矮胖的,和淡黄色的鲨鱼有宽, 钝的吻,狭窄的,和平滑的-尖牙双颚内, 与大小相同的背鳍.(参考文献 5578) 背面土黄色, 腹面灰白的.(参考文献 9997) 有两个几乎同样大的背鳍。 (参考文献 37816)

生物学特性     字汇 (例如 epibenthic)

Found on continental and insular shelves and terraces (Ref. 244). Common on coral reefs (Ref. 5578) and in shallow, sandy lagoons and turbid, mangrove swamps (Ref. 6871). Feeds on smaller sharks, stingrays and on benthic bony fishes (Ref. 5578). Viviparous (Ref. 50449). Dangerous if provoked (Ref. 244). 1 to 11 of 45 cm young are born per litter (Ref. 1602). Meat is utilized fresh and dried salted for human consumption, fins for shark-fin soup base, and liver oil for vitamins (Ref. 244).

栖息于大陆架与岛屿棚与台地了。 (参考文献 244) 常见于珊瑚礁 (参考文献 5578) 与在水浅又沙的泻湖中与浑浊的, 红树林沼泽.(参考文献 6871) 吃较小的鲨鱼, 与捕食底栖的硬骨鱼类。 (参考文献 5578) 胎生的.(参考文献 50449) 危险的如果激怒.(参考文献 244) 每胎生产 1 到 11只, 45 公分的幼鱼.(参考文献 1602) 肉是生鲜利用与乾燥盐腌供人类消费,鳍用于鱼翅汤底与肝油用于维他命。 (参考文献 244)

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼

Viviparous, placental (Ref. 50449), 1-14 per litter (Ref. 6871). Gestation period 10-11 months (Ref. 5578; Ref.58048). Size at birth about 50 to 70 cm TL (Ref. 9997); 45-80 cm TL (Ref.58048). Distinct pairing with embrace (Ref. 205). Mating and pupping take place during late spring and early summer (Ref. 37816).印度-太平洋: 紅海與南非 (包括模里西斯,塞錫爾群島, 馬達加斯加) 到菲律賓, 北至越南, 南至澳洲。 也從帛琉,馬紹爾群島與大溪地島。 記錄自台灣了。 (參考文獻 4868)

主要参考文献 Upload your references | 参考文献 | 合作者 : Compagno, Leonard J.V. | 合作者

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)

  濒危 (EN) (A2bd); Date assessed: 16 July 2020

CITES (Ref. 128078)


CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  引起创伤的 (Ref. 244)




人类利用

渔业: 商业性
FAO(Publication : search) | FishSource |

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Trophic ecology
食物相
Diet compositions
Food consumptions
Food rations
捕食者
Ecology
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Home ranges
Population dynamics
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Length-weight rel.
Length-length rel.
体长-频率
Mass conversions
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繁殖
Maturities
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Spawnings
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Egg(s)
Egg developments
仔鱼
稚鱼动力学
Anatomy
Gill areas
脑重体重比
Otoliths
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游泳类型
Swimming speeds
Visual pigment(s)
鱼的声音
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Toxicities (LC50s)
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Estimates based on models

Preferred temperature (Ref. 115969): 24.7 - 29.1, mean 28.1 (based on 2034 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00468 (0.00218 - 0.01003), b=3.09 (2.92 - 3.26), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  4.1   ±0.6 se; based on diet studies.
回复力 (Ref. 120179):  非常低的, 最小族群倍增时间超过14 年 (Fec=1).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
价格分类 (Ref. 80766):   Medium.