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Negaprion acutidens (Rüppell, 1837)

Sicklefin lemon shark
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Negaprion acutidens   AquaMaps   Data sources: GBIF OBIS
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Papua New Guinea country information

Common names: Sicklefin lemon shark
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Reported from Binaturi R. mouth to the Trobriands (Ref. 6993). Also Ref. 9997.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/pp.html
National Fisheries Authority: http://www.spc.org.nc/coastfish/Countries/PNG/png.htm
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., 1984
National Database:

Common names from other countries

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

Elasmobranchii 板鰓亞綱 (鯊魚與魟魚) (sharks and rays) > Carcharhiniformes (Ground sharks) 真鯊目 (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 生態學

海洋; 半鹹淡水 礁區魚類; 深度上下限 0 - 92 m (Ref. 244).   熱帶; 30°N - 32°S, 32°E - 140°W (Ref. 244)

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

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

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背棘 (總數) : 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﹐和淡黃色的鯊魚有寬, 鈍的吻﹐狹窄的﹐和平滑的-尖牙雙顎內, 與大小相同的背鰭.(參考文獻 5578) 背面土黃色, 腹面灰白的.(參考文獻 9997) 有兩個幾乎同樣大的背鰭。 (參考文獻 37816)

生物學特性     字彙 (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).

棲息於大陸棚與島嶼棚與臺地了。 (參考文獻 244) 常見於珊瑚礁 (參考文獻 5578) 與在水淺又沙的潟湖中與混濁的, 紅樹林沼澤.(參考文獻 6871) 吃較小的鯊魚,魟與捕食底棲的硬骨魚類。 (參考文獻 5578) 胎生的.(參考文獻 50449) 危險的如果激怒.(參考文獻 244) 每胎生產 1 到 11隻, 45 公分的幼魚.(參考文獻 1602) 肉是生鮮利用與乾燥鹽醃供人類消費,鰭用於魚翅湯底與肝油用於維他命。 (參考文獻 244)

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

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)

主要參考資料 Upload your references | 參考文獻 | 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)

IUCN 瀕危狀態 (Ref. 130435)

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

CITES (Ref. 128078)


CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  引起創傷的 (Ref. 244)




人類使用

漁業: 商業性
FAO(Publication : search) | FishSource |

更多資訊

Trophic ecology
食物相
Diet compositions
Food consumptions
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捕食者
Ecology
生態學
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Max. ages / sizes
Length-weight rel.
Length-length rel.
長度-頻率
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繁殖
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仔魚
稚魚動力學
Anatomy
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腦重體重比
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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).
營養階層 (Ref. 69278):  4.1   ±0.6 se; based on diet studies.
回復力 (Ref. 120179):  非常低的, 最小族群倍增時間超過14 年 (Fec=1).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
價格種類 (Ref. 80766):   Medium.