分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Anguilliformes (Eels and morays)
鰻鱺目 (Eels and morays) >
Ophichthidae (Snake eels)
蛇鰻科 (Snake eels) > Ophichthinae
Etymology: Bascanichthys: Greek, baskanos, -os, -on = evil eye + Greek, ichthys = fish (Ref. 45335); ryukyuensis: Named for its type locality, in Ryukyu Islands..
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 0 - 1 m (Ref. 127464).
Northwest Pacific: Japan (Ryukyu Is.).
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 51.6 cm TL 雄魚/尚未辨別雌雄; (Ref. 127464); 62.7 cm TL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
脊椎骨: 207 - 216. This species is distinguished by the following characters: an extremely elongate body; head 3.7-4.3% TL; tail 43.3-44.2% TL; predorsal-fin length 40.7-45.4% of head length; snout length 11.3-13.1% of HL; lateral-line pores anterior to anus 114-118; total vertebrae 207-216, mean vertebral formula 2-116-212; dorsal-fin origin slightly before the middle of head and before first lateral-line pore. Colouration: body pale brown, and head without distinct dark bands after preservation (Ref. 127464).
Two specimens were reported to have been collected as stranded specimens caused by the extremely low temperatures by a serous cold wave coming from the Arctic. In the type locality, several species of Muraenidae, Ophichthidae, Apogonidae, Syganidae, etc., were also collected at the same time (Ref. 127464).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Hibino, Y., K. Yamashita, Y. Sakurai and H.-C. Ho, 2022. Two new species of the snake eel genus Bascanichthys (Anguilliformes: Ophichthidae) from the northwestern Pacific. Zootaxa 5189(1):103-113. (Ref. 127464)
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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=0.00089 (0.00039 - 0.00204), b=3.00 (2.80 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.8 ±0.6 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (45 of 100).
