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) >
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); hyugaensis: Named for the belief that it is endemic and common to the Hyuga Nada Sea.
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
海洋 pelagic-neritic; 深度上下限 1 - 50 m (Ref. 86259). ; 30°N - 34°N, 127°E - 140°E (Ref. 114953)
分布
領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
North-West Pacific: endemic to southern Japan.
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 43.1 cm TL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
This species is distinguished from its congeners by the following set of characters: a row of thorns (strongly hooked) on mid-dorsum of tail; a pair of thorns on anterior part of scapular region (apparent to touch in smallest specimen; 161 mm TL); thorns on orbital, nape and scapular regions not encircled by light yellow or white pigment; dorsal surface covered with minute dermal denticles of uniform size and shape, no obvious larger dermal denticles (smooth to touch) (Ref. 86259).
Body shape (shape guide): other; Cross section: flattened.
A benthic ray species that is narrow-ranging (Ref. 114953). According to local divers in Miyazaki, this species often occurs on very shallow sandy bottoms, at depths as shallow as ca. 1 m, in the summer season off the Nichinan Coast, Miyazaki. It is frequently captured by set net within a depth of ca. 50 m from early spring (March) to autumn (November). It was observed by a local fisherman and a fish merchant (pers.comm.), that this species was not included in almost daily set net catches (depth ca. 8-50 m) from November to March in 2007-2008 in northern Miyazaki (Kadokawa Bay) and southern Miyazaki (Meitsu, Nichinan Coast) which indicate that the species avoids lower sea temperatures in the winter season (Ref. 86259). Males mature from ca. 20 cm TL (Ref. 114953).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
易受傷害 (VU) (A2d); Date assessed: 27 September 2019
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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 = 0.5938 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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). |
營養階層 (參考文獻 69278) |
3.4 ±0.4 se; based on size and trophs of closest relatives |
釣魚的脆弱性 (Ref. 59153) |
Low to moderate vulnerability (33 of 100). 🛈 |