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) >
Myliobatiformes (Stingrays)
鰩目 (Stingrays) >
Dasyatidae (Stingrays)
土魟科 (Stingrays) > Dasyatinae
Eponymy: The original description has no etymology but, though the binomial looks as if it could be an eponym, it is merely a translation: aka is Japanese for red, referring to its bright orange-red underside and jei is Japanese for ray/skate. (Ref. 128868), visit book page.
More on authors: Müller & Henle.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋; 半鹹淡水 居於水底的; 海洋洄游的 (Ref. 51243); 深度上下限 10 - 50 m (Ref. 114953). 熱帶; 43°N - 23°N (Ref. 114953)
Northwest Pacific: central China to northern Japan.
西太平洋: 日本南部到泰國。 也已知來自斐濟與吐瓦魯。 (參考文獻 12596)
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 44.0 range ? - ? cm
Max length : 200 cm TL 雄魚/尚未辨別雌雄; (Ref. 637); common length : 100.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 637); 最大體重: 10.7 kg (Ref. 40637)
Disc rhomboid, anterior margin straight, posterior margin convex. Snout triangular and slightly produced. dorsal keel present on tail. Adults with small spines on disc and posterior part of tail. Brown dorsally and some with orangish pectoral fin margins, in front of eyes, behind spiracles, on the sides of the tail just anterior to the sting. Ventrum orangish red.
體盤偏菱形，前緣直線, 後緣凸狀。 吻三角形的而且些微地生產。 背部的龍骨脊位於尾部之上。 在體盤與尾部的較後面的部分上成魚有小的棘。 背部褐色的而且一些具有在呼吸孔後面的在眼睛前面的橘色胸鰭邊緣, 在尾部側邊上正好位於刺前。 Ventrum 橘紅色。
Found in coral reefs and estuarine areas, on sand and mud bottoms (Ref. 12951, 11230). Feeds on small fishes and crustaceans (Ref. 9840). Ovoviviparous with litters of only 1 pup (Ref. 114953) while earlier estimates indicated production of up to 10 in a litter (Ref. 12951). Caught occasionally by bottom trawl fisheries operating inshore. Utilized for its meat but of limited value due to its small size (Ref.58048). Served in 'miso' soup, hard boiled with seasonings, or for 'kamaboko' material (Ref. 637).
在沙與泥底部上, 發現於珊瑚礁與河口地區了。 (參考文獻 12951,11230) 吃小魚與甲殼動物。 (參考文獻 9840) 卵胎生的多達 10 一胎.(參考文獻 12951) 以 'miso' 湯供應了,與調味料確實煮沸, 否則對於 'kamaboko' 材料.(參考文獻 637)
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). Distinct pairing with embrace (Ref. 205).西太平洋: 日本南部到泰國。 也已知來自斐濟與吐瓦魯。 (參考文獻 12596)
Last, P.R., W.T. White, M.R. de Carvalho, B. Séret, M.F.W. Stehmann and G.J.P. Naylor, 2016. Rays of the world. CSIRO Publishing, Comstock Publishing Associates. i-ix + 1-790. (Ref. 114953)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
近危 (NT) (A2bd); Date assessed: 27 August 2019
人類使用
漁業: 商業性; 游釣魚種: 是的; 水族館: 商業性
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Estimates based on models
Preferred temperature (Ref.
123201): 21.4 - 29, mean 28.1 °C (based on 510 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00468 (0.00195 - 0.01123), b=3.12 (2.92 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.8 ±0.58 se; based on food items.
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (K=0.1; Fec=1).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
Climate Vulnerability (Ref.
125649): Very high vulnerability (87 of 100).
