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: Rhizoprionodon: rhiza (Gr.), root; prion (Gr.) saw; odon (Gr.), tooth, referring to teeth with serrated (saw-like) bases, or roots [replacement name for Rhizoprion Ogilby 1915, preoccupied by Rhizoprion Jourdan 1861 in mammals]. (See ETYFish); porosus: Latin for pored or full of holes, referring to enlarged hyomandibular pores on both sides of head. (See ETYFish).
More on author: Poey.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋; 淡水; 半咸淡水 礁区鱼类; 深度上下限 ? - 500 m (Ref. 244), usually ? - 100 m (Ref. 244). 熱帶; 28°N - 40°S, 88°W - 32°W (Ref. 55194)
Western Atlantic: Caribbean, including the Bahamas, south to Uruguay. The separation of this species from Rhizoprionodon terraenovae whether as a distinct species or a representative of a southern subspecies is still uncertain and pending until detailed studies are commenced.
西大西洋: 加勒比海,包括巴哈馬, 南至烏拉圭。 這種和 Rhizoprionodon terraenovae 之間的區別是否當作一個不同的種或南方亞種的一個代表仍然不確定與當直到詳細的研究被開始的時候。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 65.0, range 80 - ? cm
Max length : 113 cm TL 雄鱼/尚未辨别雌雄; (Ref. 111958); common length : 75.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 5217); 最大体重: 7.5 kg (Ref. 111958)
Common in bays and estuaries often entering rivers. Also found in offshore waters at depths of about 500 m, generally less than 100 m. Feeds mainly on small bony fishes, including wrasses, but also marine snails, squid and shrimp. Viviparous, with 2 to 6 young in a litter. Size at birth about 31 to 39 cm. Utilized salted or frozen for human consumption and processed into fish meal. Not dangerous (Ref. 9710).
常见于海湾与河口时常进入河。 也发现于离岸水域深度大约 500 公尺, 通常少于 100 公尺。 主要吃小的硬骨鱼类，包括隆头鱼科的鱼，也捕食海蜗牛，乌贼与虾。 胎生的, 有两个到 6 幼鱼在一胎。 出生时的大小大约 31 到 39 公分。 利用了盐腌或冷冻供人类消费而且加工成鱼粉。 没有危险性.(参考文献 9710)
Distinct pairing with embrace (Ref. 205). Viviparous, placental (Ref. 50449).西大西洋: 加勒比海,包括巴哈馬, 南至烏拉圭。 這種和 Rhizoprionodon terraenovae 之間的區別是否當作一個不同的種或南方亞種的一個代表仍然不確定與當直到詳細的研究被開始的時候。
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: 商业性
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Estimates based on models
Preferred temperature (Ref.
123201): 17.5 - 27.1, mean 24.2 °C (based on 80 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00214 (0.00141 - 0.00323), b=3.09 (2.97 - 3.21), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 4.0 ±0.2 se; based on diet studies.
Generation time: 3.7 ( 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 (Fec=2; K=0.3-0.42).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (51 of 100).
Nutrients (Ref.
124155): Calcium = 8.95 [1.65, 47.15] mg/100g; Iron = 0.433 [0.104, 1.231] mg/100g; Protein = 22.2 [19.3, 24.6] %; Omega3 = 0.143 [0.058, 0.338] g/100g; Selenium = 38 [11, 110] μg/100g; VitaminA = 58.9 [20.5, 179.1] μg/100g; Zinc = 0.758 [0.366, 1.514] mg/100g (wet weight);
