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); lalandii: In honor of naturalist and explorer Pierre Antoine Delalande (1787-1823), who collected type [authorship often attributed to Müller & Henle, who published Valenciennes’ description]. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 3 - 70 m (Ref. 244). 熱帶; 13°N - 35°S, 78°W - 31°W
Western Atlantic: Panama to southern Brazil and Uruguay (Ref. 58839).
西大西洋: 巴拿馬到巴西南部與烏拉圭.(參考文獻 58839)
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 61.8, range 58 - ? cm
Max length : 80.0 cm TL (female); common length : 55.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 5217); 最大體重: 0.00 g
Inhabits shallow coastal waters, on sandy and muddy bottoms, and not normally found in lagoons and estuaries (Ref. 244). Feeds on small bony fishes, including sardines and anchovies, also shrimp and squid (Ref. 244). Viviparous, with 1 to 4 young in a litter; size at birth 33 to 34 cm (Ref. 244). Its flesh is highly appreciated and is marketed dried salted.
在沙泥底上, 棲息於沿岸淺水區, 而不是通常發現於潟湖與河口.(參考文獻 244) 吃小的硬骨魚類，包括沙丁魚與鯷魚，也捕食蝦與烏賊。 (參考文獻 244) 胎生的,1 到 4 幼魚在一胎; 出生時大小 33 到 34 公分。 (參考文獻 244) 它的肉高度地被欣賞而且被在市場上銷售乾燥鹽醃。
Distinct pairing with embrace (Ref. 205). Viviparous, placental (Ref. 50449).西大西洋: 巴拿馬到巴西南部與烏拉圭.(參考文獻 58839)
Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766)
人類使用
漁業: 商業性
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Estimates based on models
Preferred temperature (Ref.
123201): 24.6 - 28, mean 27.2 °C (based on 104 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00269 (0.00177 - 0.00409), 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): 4.3 ±0.65 se; based on food items.
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (Fec=1).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (52 of 100).
