分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Trachichthyiformes (Roughies)
金眼鯛目 (Roughies) >
Trachichthyidae (Slimeheads)
燧鯛科 (Slimeheads)
Etymology: Hoplostethus: Greek, hoplon = weapon + Greek, stetho, stethion = brest; literal = to prick a little breast (Ref. 45335); roseus: Name from Latin 'rose', referring to the rosy colouration dorsally on the body and on the dorsal, pectoral and caudal fins of fresh specimens..
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 200 - 400 m (Ref. 129008).
分布
國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri
Western Pacific: Japan, Taiwan and New Caledonia.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 21.4 cm SL 雄魚/尚未辨別雌雄; (Ref. 129008); 24.7 cm SL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 6 - 7; 背的軟條 (總數) : 12 - 13; 臀棘: 3; 臀鰭軟條: 9 - 10; 脊椎骨: 26. This species is distinguished from its congeners by the following set of characters: pyloric caeca 65-84; predorsal scales 18-22; pectoral-fin rays 14-17 (modally 15-16); total gill rakers on first-gill arch 18-19; HF1 2.2%-3.7% SL; HF2 5.1%- 6.0% SL; postorbital width 17.1%-20.6% SL. Colouration: oral cavity, branchial cavity, top and underside of tongue, and peritoneum are uniformly black; base of caudal fin brownish; spinous dorsal-fin membrane with black distal margin. (Ref. 129008).
The mature female specimen (24.7 cm SL) with well-developed eggs and the male specimen (21.4 cm SL) with well-developed testes; females (19.5-20.9 cm SL) with mature eggs, suggests that this species is a small species, which reproduces at a length c. 20.0 cm SL (Ref. 129008).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Su, Y., H.-C. Lin and H.-C. Ho, 2022. Hoplostethus roseus, a new roughy fish from the western Pacific based on morphology and DNA barcoding (family Trachichthyidae). J. Fish Biol. 101(3):441-452. (Ref. 129008)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01660 (0.00723 - 0.03808), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.6 ±0.6 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (20 of 100).
