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)
白眼鮫目 (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).
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋; 半咸淡水 居于水底的; 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。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 115.0 range ? - ? cm
Max length : 160 cm TL 雄鱼/尚未辨别雌雄; (Ref. 34266); common length : 100.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 5217); 最大年龄: 12 年 (Ref. 34266)
Large number of teeth, great length of very narrow snout. Yellow-gray above and white below (Ref. 6032).
齿的数目多, 非常狭窄吻的很长。 背面黄灰色而腹面白色的.(参考文献 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.
一种近岸的鲨鱼发现在岩石底部上面了, 进入河口与河口。 吃包括鲱鱼， 鱼与石首鱼的小的群游性鱼。 胎生的, 通常 4个每窝胚胎; 出生时大小 38 到 41 公分。 244 公分记录未被证实的。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
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)
人类利用
渔业: 自给性渔业
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Estimates based on models
Preferred temperature (Ref.
123201): 27 - 27.8, mean 27.5 °C (based on 149 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [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): 4.5 ±0.80 se; based on food items.
Generation time: 10.0 ( 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 (K=0.11-0.12; tm=5-7; tmax=12; Fec=4).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (74 of 100).
Nutrients (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);
