分類 / Names
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: 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
生態學
海洋; 淡水; 半鹹淡水 礁區魚類; 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 / 年齡
Maturity: Lm 65.0, range 80 - ? cm
Max length : 113 cm TL 雄魚/尚未辨別雌雄; (Ref. 111958); common length : 75.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 5217); 最大體重: 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).
常見於海灣與河口時常進入河。 也發現於離岸水域深度大約 500 公尺, 通常少於 100 公尺。 主要吃小的硬骨魚類，包括隆頭魚科的魚，也捕食海蝸牛，烏賊與蝦。 胎生的, 有兩個到 6 幼魚在一胎。 出生時的大小大約 31 到 39 公分。 利用了鹽醃或冷凍供人類消費而且加工成魚粉。 沒有危險性.(參考文獻 9710)
Life cycle and mating behavior
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: 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)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
人類使用
漁業: 商業性
工具
特別的報告
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網路資源
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=0.00219 (0.00144 - 0.00332), b=3.08 (2.96 - 3.20), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
營養階層 (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.
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過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);
