分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Pleuronectiformes (Flatfishes)
鰈形目 (Flatfishes) >
Cynoglossidae (Tonguefishes)
舌鰨科 (Tonguefishes) > Symphurinae
Etymology: Symphurus: Greek, syn, symphysis = grown together + Greek, oura = tail (Ref. 45335); longirostris: Name from Latin 'long' for long and 'rostris' for snout; referring to the relatively long snout (especially when compared with S. microrhynchus.).
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
海洋 居於水底的; 深度上下限 45 - 100 m (Ref. 109580), usually 60 - 90 m (Ref. 109580).
分布
領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
Northwestern Pacific: Japan.
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm ?, range 4 - 6.55 cm
Max length : 6.2 cm SL 雄魚/尚未辨別雌雄; (Ref. 109580); 6.6 cm SL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 81 - 88; 臀鰭軟條: 68 - 74; 脊椎骨: 45 - 48. This species is distinguished from all its congeners by the following set of characters: ID pattern1-2-2-2-2; caudal-fin rays 12; vertebrae, abdominal 9 and total 45-48; hypurals 4; D 81-88; A 68-74; ongitudinal scale rows 56-66; transverse scales 21-26; scale rows on the head posterior to the lower orbit 11-14; with a well-developed fleshy ridge on the posterior ocular side lower jaw; upper and lower eyes covered with a membrane; a membranous flap contiguous from anterior nostril to anteroventral margin of lower eye;
upper head lobe wider than the lower head lobe; differs friom S. microrhynchus and S. holothuriae, by having a shorter head and postorbital lengths, longer snout and predorsal lengths, a different snout shape, and with the anterior margin of the upper eye equal to, or slightly in advance of, that of the lower eye. Colouraton: ocular-side uniformly yellow to light brown; blind-side uniformly white without pepper dots; distinct dermal spots on both sides of the bases of the dorsal and anal fins; peritoneum bluish black on its dorsalmost aspect (Ref. 109580).
Cross section: flattened.
Occurs on continental shelf, collected on muddy substrata or a mixture of mud and sand. Caught by bottom trawls (Ref. 109580).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Lee, M.-Y., T.A. Munroe and Y. Kai, 2017. Description of a new cryptic species of tonguefish (Pleuronectiformes: Cynoglossidae: Symphurus) from shallow waters off Japan. Ichthyol. Res.64:71-83. (Ref. 109580)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 28 July 2020
人類使用
漁業: bycatch
工具
特別的報告
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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): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00211 - 0.00863), b=3.14 (2.97 - 3.31), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
釣魚的脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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