分類 / Names
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Pleuronectiformes (Flatfishes) >
Cynoglossidae (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.)..
Environment: milieu / climate zone / depth range / distribution range
生態学
海 底生の; 深さの範囲 45 - 100 m (Ref. 109580), usually 60 - 90 m (Ref. 109580). Subtropical
Northwestern Pacific: Japan.
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm ?, range 4 - 6.55 cm
Max length : 6.2 cm SL オス/雌雄の選別がない; (Ref. 109580); 6.6 cm SL (female)
簡単な記述
形態学 | 形態計測学
背鰭 (合計): 81-88; 臀鰭: 68 - 74; 脊つい: 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).
Occurs on continental shelf, collected on muddy substrata or a mixture of mud and sand. Caught by bottom trawls (Ref. 109580).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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)
Human uses
より多くの情報
Age/Size成長体長-重さLength-length体長組成形態計測学形態学幼生幼生の動力補充豊度BRUVS
参考文献水産養殖水産養殖の紹介緊張遺伝子のElectrophoreses遺伝病気行列NutrientsMass conversion
協力者画像Stamps, Coins Misc.音シガテラ(食中毒の名前)速度泳ぐ 型式カマOtoliths脳視覚
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
栄養段階 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高い, 15か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).