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Negaprion acutidens (Rüppell, 1837)

Sicklefin lemon shark
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Negaprion acutidens
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分類 / Names 共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

板鰓亜鋼(サメとエイ類) (sharks and rays) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
  More on author: Rüppell.

Environment: milieu / climate zone / depth range / distribution range 生態学

; 海; 汽水性の 関連する礁; 深さの範囲 0 - 92 m (Ref. 244).   Tropical; 30°N - 32°S, 32°E - 140°W (Ref. 244)

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | 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).

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm ?, range 220 - 240 cm
Max length : 380 cm TL オス/雌雄の選別がない; (Ref. 5213)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 0; 背鰭 (合計): 0; 肛門の骨 0; 臀鰭: 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).

生物学     用語集 (例 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).

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | | 生産力 | 幼生

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).

主な参考文献 Upload your references | 参考文献 | コーディネーター : Compagno, Leonard J.V. | 協力者

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のレッドリストの状況は (Ref. 119314)

  絶滅危惧 (EN) (A2abcd+3bcd+4abcd); Date assessed: 30 April 2003

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Traumatogenic (Ref. 244)





Human uses

水産業: 商業
FAO(Publication : search) | FishSource |

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共通名の
類義語
代謝
捕食動物
生態毒性
繁殖
成熟
放精
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生産力

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Length-length
体長組成
形態計測学
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幼生
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参考文献
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遺伝子の
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シガテラ(食中毒の名前)
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インターネットの情報源

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 24.7 - 29.1, mean 28.1 (based on 2034 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00267 - 0.00987), b=3.10 (2.94 - 3.26), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
栄養段階 (Ref. 69278):  4.1   ±0.6 se; Based on diet studies.
回復力 (Ref. 69278):  非常に低い, 14年以上の倍増期間の最小個体群 (Fec=1).
弱み (Ref. 59153):  Very high vulnerability (81 of 100) .
価格帯 (Ref. 80766):   Medium.