分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | 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: Isogomphodon: iso-, from isos (Gr.), equal; gomphos (Gr.), nail; odon (Gr.), tooth, referring to how teeth are equally fastened, i.e., claviform and straight in both jaws (See ETYFish); oxyrhynchus: oxys (Gr.), sharp; rhynchus (L.), snout, referring to its elongated, pointed and narrow snout [authorship often attributed to Müller & Henle, who published Valenciennes’ description] (See ETYFish).
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
海洋; 半鹹淡水 居於水底的; 深度上下限 ? - 15 m (Ref. 13608). 熱帶; 12°N - 20°S, 63°W - 34°W (Ref. 244)
Western Atlantic: Trinidad, Guyana, Suriname, French Guiana, and Brazil.
西大西洋: 千里達,蓋亞那,蘇利南,法屬圭亞那與巴西。
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm 115.0  range ? - ? cm
Max length : 160 cm TL 雄魚/尚未辨別雌雄; (Ref. 34266); common length : 100.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 5217); 最大年齡: 12 年 (Ref. 34266)
Large number of teeth, great length of very narrow snout. Yellow-gray above and white below (Ref. 6032).
Body shape (shape guide): fusiform / normal.
齒的數目多, 非常狹窄吻的很長。 背面黃灰色而腹面白色的.(參考文獻 6032)
An inshore shark found over rocky bottoms, entering estuaries and river mouths. Feeds on small schooling fishes including herring, anchovies and croakers. Viviparous, generally 4 embryos per brood; size at birth 38 to 41 cm. 244 cm record unconfirmed.
一種近岸的鯊魚發現在岩石底部上面了, 進入河口與河口。 吃包括鯡魚,鯷魚與石首魚的小的群游性魚。 胎生的, 通常 4個每窩胚胎; 出生時大小 38 到 41 公分。 244 公分記錄未被證實的。
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Distinct pairing with embrace (Ref. 205). Viviparous, placental (Ref. 50449).西大西洋: 千里達,蓋亞那,蘇利南,法屬圭亞那與巴西。
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: Version 2025-2 (Global))
極危 (CR) (A2bcd); Date assessed: 01 July 2019
人類使用
漁業: 自給性漁業
工具
特別的報告
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網路資源
基於模型的估計
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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). |
營養階層 (參考文獻 69278) |
4.5 ±0.80 se; based on food items. |
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Generation time |
10.0 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
回復力 (參考文獻 120179) |
非常低的, 最小族群倍增時間超過14 年 (K=0.11-0.12; tm=5-7; tmax=12; Fec=4). |
釣魚的脆弱性 (Ref. 59153) |
High to very high vulnerability (74 of 100). 🛈 |
價格種類 (Ref. 80766) |
Medium.
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營養素 (Ref. 124155) |
Calcium = 25.1 [3.3, 144.5] mg/100g; Iron = 0.725 [0.183, 2.103] mg/100g; Protein = 21.1 [18.8, 23.3] %; Omega3 = 0.16 [0.06, 0.40] g/100g; Selenium = 29.2 [7.9, 91.1] μg/100g; VitaminA = 18.4 [5.8, 57.1] μg/100g; Zinc = 0.728 [0.335, 1.386] mg/100g (wet weight); |