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) >
Platyrhinidae (Fanrays)
Etymology: Platyrhina: Greek, platys = flat + Greek, rhinos = nose. It is the same voice used for the Mammalian division made in Primates (Ref. 45335); tangi: Named for Chinese ichthyologist D.-S. Tang.
Eponymy: D-S Tang was a Chinese ichthyologist at the University of Amoy, who was active in the 1930s. [...] (Ref. 128868), visit book page.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 pelagic-neritic. Temperate; 40°N - 17°N, 106°E - 141°E (Ref. 114953)
Northwest Pacific: southern Japan (except the Ryukyu and Ogasawara Islands), southern Korea, China, Taiwan and northern Vietnam.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm ?, range 42 - ? cm
Max length : 68.0 cm TL オス/雌雄の選別がない; (Ref. 86259); 63.9 cm TL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
This species is distinguished from its congeners in having the following set of characters: a row of thorns (weakly hooked, sometimes tubercle-like) on mid-dorsum of tail; no thorns on the anterior part of scapular region; thorns on the orbital, nape and scapular regions encircled by light yellow or white pigment; dorsal surface covered with minute and some clearly larger dermal denticles (coarse to touch) (Ref. 86259).
Body shape (shape guide): other.
From studies on vertebral centra, it has been suggested that females attain a greater asymptotic total length (55.58 cm TL) and grew more slowly than males (45.52 cm TL) (based on specimens from Ariake Bay, western Kyushu Island, Japan). The maximum ages observed were 5 years for males and 12 years for females. Furthermore, it was also reported that females reached sexual maturity at a greater size than males (total length at 50% sexual maturity: males, 39.3 cm; females, 42.1cm). Parturition occurred from August to November followed immediately by mating, ovulation and fertilization. Largest specimen yet recorded (USNM 51295, 68.0 cm TL, Tokyo, sex unknown) with the largest specimens examined and collected from the Hyuga Nada Sea to be 63.9 cm TL for female, and 52.5 cm TL for male; however, the species is likely to grow larger than ca. 70.0 cm TL according to local Miyazaki fishermen (Ref. 86259).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Iwatsuki, Y., K. Miyamoto, K. Nakaya and J. Zhang, 2011. A review of the genus Platyrhina (Chondrichthys: Platyrhinidae) from the northwestern Pacific, with descriptions of two new species. Zootaxa 2738:26-40. (Ref. 86259)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
脆弱 (VU) (A2cd); Date assessed: 02 September 2019
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 = 0.5938 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
栄養段階 (参照
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
漁業の脆弱性 (Ref.
59153): Moderate to high vulnerability (47 of 100).
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