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) >
Torpediniformes (Electric rays)
電鰩目 (Electric rays) >
Torpedinidae (Electric rays)
電 (Electric rays)
Etymology: Torpedo: Latin, torpere = be sluggish (Ref. 45335).
More on author: Peters.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋; 半鹹淡水 礁區魚類; 深度上下限 0 - 439 m (Ref. 11228), usually ? - 50 m (Ref. 114953). 熱帶; 2°S - 35°S, 17°E - 59°E (Ref. 114953)
Western Indian Ocean: from South Africa to Zanzibar and possibly as far north as the Kenyan coast. (Ref. 83892). Possibly occurring off smaller islands in the Indian Ocean but identity of specimens uncertain and need verification (Ref. 5578). Found in estuaries in South Africa during periods of high salinity (Ref. 114953).
西印度洋: 確定從莫三比克南部到南非的 Agulhas 角。 可能地出現在印度洋的小島外但是標本的鑑定不確定的與需要確認。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 64.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 2712)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Large ray with a small caudal fin and small papillae around the spiracles (Ref. 5578). Dull grey above with variable markings, often in the form of dark lines or large spots; white below (Ref. 5578).
大型魟魚呼吸孔的周圍具有一個小的尾鰭與小的乳突。 (參考文獻 5578) 暗灰色的上方有多變的斑紋, 常見於黑色線條的形式或大的斑點中; 腹面白色的.(參考文獻 5578)
Inhabits estuaries and intertidal zone down to 439 m (Ref. 5578). Found in sandy areas near deep rocky reefs (Ref. 2712). Feeds on fishes and cuttlefish (Ref. 5578). Ovoviviparous (Ref. 50449). Large prey probably stunned by its powerful electric discharge (Ref. 5578). Young born in the summer (Ref. 5578). Common accidental catch of anglers (Ref. 114953).
棲息於河口，而且潮間帶向下至 439 公尺。 (參考文獻 5578) 發現於在深的岩礁附近的沙地了。 (參考文獻 2712) 吃魚與墨魚。 (參考文獻 5578) 卵胎生的.(參考文獻 50449) 大的獵物可能打昏用它的有力放電.(參考文獻 5578) 幼魚出生於夏天了。 (參考文獻 5578)
Life cycle and mating behavior
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).西印度洋: 確定從莫三比克南部到南非的 Agulhas 角。 可能地出現在印度洋的小島外但是標本的鑑定不確定的與需要確認。
Compagno, L.J.V., 1986. Torpedinidae. p. 112-113. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 2712)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
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Estimates based on models
Preferred temperature (Ref.
123201): 12 - 25.8, mean 19.1 °C (based on 171 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.00665 - 0.03288), b=2.96 (2.77 - 3.15), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.5 ±0.75 se; based on food items.
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (46 of 100).
