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); terraenovae: terra (L.), earth or land; novus (L.), new, i.e., Newfoundland, Canada, where Richardson erroneously thought it occurred. (See ETYFish).
More on author: Richardson.
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 0 - 280 m (Ref. 26938), usually 0 - 10 m (Ref. 55195). 亞熱帶的; 43°N - 25°S, 100°W - 32°W (Ref. 55195)
Western Atlantic: New Brunswick, Canada to the Gulf of Mexico. Southwest Atlantic: coasts of Brazil.
西大西洋: 新布蘭斯維克在加拿大到墨西哥灣。 西南大西洋: 巴西的海岸。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 87.5, range 85 - 90 cm
Max length : 110 cm TL 雄鱼/尚未辨别雌雄; (Ref. 37512); 110.0 cm TL (female); common length : 70.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 37512); 最大体重: 7.3 kg (Ref. 40637); 最大年龄: 10 年 (Ref. 6140)
Small, generally gray, streamlined shark, with long pointed snout. Posterior margin of anal fin straight or slightly concave. Second dorsal fin origin well behind anal fin origin (Ref. 26938).
小又通常灰色又流线型的鲨鱼, 有长的尖吻。 臀鳍的后缘笔直地或些微地凹曲。 第二背鳍鳍起源在臀鳍起源正后方。 (参考文献 26938)
Reaches at least 103 cm TL (Ref. 244). Abundant in the continental shelves, from the intertidal to deeper waters. Often occurs close to the surf zone off sandy beaches, and also enclosed bays, sounds, and harbors, in estuaries and river mouths. Feeds on small bony fishes, shrimps, crabs, segmented worms and mollusks (gastropod feet). Viviparous, with 1 to 7 young in a litter (Ref. 27549). Size at birth about 29 to 37 cm. Utilized for human consumption. Minimum depth from Ref. 055195.
达到最少 103 公分TL 。 (参考文献 244) 丰富的在大陆架中, 从潮间带对较深的水域。 时常出现接近沙滩外的海浪区, 以及封闭的海湾，声音与港湾, 在河口与河口中。 吃小的硬骨鱼类，虾，螃蟹，分段的蠕虫与软件动物 (腹足动物脚) 。 胎生的,1 到 7 幼鱼在一胎。 出生时的大小大约 29 到 37 公分。 供人类食用。
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). 1 to 7 young per litter. Larger females carry more young. Size at birth 29-37 cm. Gestation period is 10 to 11 months in the northern Gulf of Mexico. Sex ratio of near term fetuses is 1:1 (Ref. 244).西大西洋: 新布蘭斯維克在加拿大到墨西哥灣。 西南大西洋: 巴西的海岸。
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; 游钓鱼种: 是的
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Estimates based on models
Preferred temperature (Ref.
123201): 23.4 - 28, mean 27 °C (based on 1016 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00277 - 0.00754), b=3.01 (2.87 - 3.15), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 4.4 ±0.5 se; based on diet studies.
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (K=0.19-0.45(?); tmax=10; tm=4; Fec 1-7).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (50 of 100).
Climate Vulnerability (Ref.
125649): Very high vulnerability (85 of 100).
Nutrients (Ref.
124155): Calcium = 23.3 [2.5, 120.6] mg/100g; Iron = 0.89 [0.24, 2.75] mg/100g; Protein = 22.6 [19.7, 24.8] %; Omega3 = 0.372 [0.150, 0.861] g/100g; Selenium = 25.1 [6.4, 70.6] μg/100g; VitaminA = 8.35 [2.78, 24.50] μg/100g; Zinc = 0.452 [0.218, 0.855] mg/100g (wet weight); based on
nutrient studies.
