分類 / 名前
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
板鰓亜鋼(サメとエイ類) (sharks and rays) >
Torpediniformes (Electric rays) >
Torpedinidae (Electric rays)
Etymology: Torpedo: Latin, torpere = be sluggish (Ref. 45335).
Eponymy: A toponym; this electric ray is named after the city of Alexandria in Egypt, not a person. (Ref. 128868), visit book page.
Taxonomic Remarks
Validity of species doubtful, origin unclear if eastern Mediterranean or northern Red Sea (Ref. 95633).
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 底生の. Tropical
Mediteranean Sea or Red Sea: Egypt. Origin doubful if Red Sea or Mediterranean, also described from off Alexandria.
サイズ / 重さ / 年齢
Ovoviviparous (Ref. 50449).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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).
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)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
用具
特記事項
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.00678 - 0.03229), b=2.97 (2.78 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (参照
69278): 4.4 ±0.8 se; based on size and trophs of closest relatives
回復力 (参照
120179): 低い, ４．５年～１４年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
漁業の脆弱性 (Ref.
59153): Moderate vulnerability (44 of 100).
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