Acroteriobatus leucospilus (Norman, 1926)
Grayspottted guitarfish
分類 / 名稱 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) > Rhinopristiformes (Shovelnose rays) 鰩目 (Shovelnose rays) > Rhinobatidae (Guitarfishes) 琵琶鱝科 (Guitarfishes)
More on author: Norman.
More on author: Norman.
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍 生態學
分布 領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
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)
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 / 年齡
簡短描述 檢索表 | 型態特徵 | 形態測量圖
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).
Cross section: flattened.
一個犁頭鰩具有一個寬又楔形的吻與胸盤。 (參考文獻 5578) 背面褐色的, 有大的在背面與胸鰭上的藍灰色斑點而且在吻上有大的對稱藍灰色條紋; 背面的少數深褐色的斑點; 腹面白色的.(參考文獻 5578)
Cross section: flattened.
一個犁頭鰩具有一個寬又楔形的吻與胸盤。 (參考文獻 5578) 背面褐色的, 有大的在背面與胸鰭上的藍灰色斑點而且在吻上有大的對稱藍灰色條紋; 背面的少數深褐色的斑點; 腹面白色的.(參考文獻 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).
發現於岸邊從碎浪區到深度 100 公尺了。 (參考文獻 5578,11228) 吃二枚貝，腹足動物，蝦，螃蟹與小的硬骨魚類。 (參考文獻 5578) 卵胎生的.(參考文獻 50449) 肉讚賞。 (參考文獻 3919)
發現於岸邊從碎浪區到深度 100 公尺了。 (參考文獻 5578,11228) 吃二枚貝，腹足動物，蝦，螃蟹與小的硬骨魚類。 (參考文獻 5578) 卵胎生的.(參考文獻 50449) 肉讚賞。 (參考文獻 3919)
生命週期和交配行為 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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)
主要參考資料
上傳您的推薦信 | 參考文獻 | 合作者 : McEachran, John | 合作者
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)
對人類具威脅
無害處的
人類使用
漁業: 自給性漁業; 游釣魚種: 是的
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網路資源
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基於模型的估計
|
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 0.5010 [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). |
|
營養階層 (參考文獻 69278) |
3.7 ±0.60 se; based on food items. |
|
回復力 (參考文獻 120179) |
非常低的, 最小族群倍增時間超過14 年 (Fec=2). |
|
釣魚的脆弱性 (Ref. 59153) |
Moderate to high vulnerability (47 of 100). 🛈 |
|
價格種類 (Ref. 80766) |
Low. |