分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 居于水底的; 深度上下限 0 - 100 m (Ref. 124452), usually ? - 37 m (Ref. 124452). 亞熱帶的; - 32°S
Western Indian Ocean: South Africa, Mozambique, and Tanzania.
西印度洋: 莫三比克南部到南非的川斯卡中部外海.(參考文獻 5578,11228)
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 56.5 cm TL 雄鱼/尚未辨别雌雄; (Ref. 124452); 96.0 cm TL (female)
简单描述
检索表 | 型态特徵 | 形态测量图
脊椎骨: 200 - 205. This medium-sized species is distinguished by the following set of characters: dorsal surface smooth, no prominent thorns or tubercles, except for slightly enlarged granular denticles partially around orbital rims, and rather regularly distributed along midline from nape to near first dorsal-fin origin, none between dorsal fins and upper caudal fin; snout semi-translucent with elongated bluish spots giving stripe-nosed appearance, numerous small bluish spots covering the snout, pectoral, pelvic, dorsal, and caudal fins but not the central disc, on a sandy brown background with darker brown spots of varying sizes covering the disc, tail, fin bases, and fins, and sometimes giving the caudal peduncle a striped appearance, the outer edges of pectoral- and pelvic-fin margins blue, while lateral tail folds white or striped blue and brown and ventral surface white; nasal lamellae 37-41; upper jaw tooth row count ca. 60-75; post-synarcual centra 187-192; total vertebral segments 200-205; total pectoral skeleton radials 63-70 (Ref. 124452).
一个犁头鳐具有一个宽又楔形的吻与胸盘。 (参考文献 5578) 背面褐色的, 有大的在背面与胸鳍上的蓝灰色斑点而且在吻上有大的对称蓝灰色条纹; 背面的少数深褐色的斑点; 腹面白色的.(参考文献 5578)
Found inshore from the surf line to a depth of 100 m (Ref. 5578, 11228). Feeds on bivalves, gastropods, shrimps, crabs and small bony fishes (Ref. 5578). Common length 92-96 cm TL; males and females mature at about 56 cm TL and birth size ca. 25 cm TL (Ref. 114953). Ovoviviparous (Ref. 50449). Flesh esteemed (Ref. 3919).
发现于岸边从碎浪区到深度 100 公尺了。 (参考文献 5578,11228) 吃二枚贝，腹足动物，虾，螃蟹与小的硬骨鱼类。 (参考文献 5578) 卵胎生的.(参考文献 50449) 肉赞赏。 (参考文献 3919)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). Bears 2 to 4 young (Ref. 5578).西印度洋: 莫三比克南部到南非的川斯卡中部外海.(參考文獻 5578,11228)
Weigmann, S., D.A. Ebert, B. Séret, 2021. Resolution of the Acroteriobatus leucospilus species complex, with a redescription of A. leucospilus (Norman, 1926) and descriptions of two new western Indian Ocean species of Acroteriobatus (Rhinopristiformes, Rhinobatidae). Marine Biodiversity (2021):51:58. (Ref. 124452)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)
濒危 (EN) (A2d); Date assessed: 25 April 2018
人类利用
渔业: 自给性渔业; 游钓鱼种: 是的
工具
特别资料
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网络资源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00309 (0.00170 - 0.00561), b=3.10 (2.94 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 3.7 ±0.60 se; based on food items.
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (Fec=2).
Fishing Vulnerability (Ref.
59153): High vulnerability (58 of 100).
