分類 / Names
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Stomiiformes (Lightfishes and dragonfishes) >
Stomiidae (Barbeled dragonfishes) > Melanostomiinae
Etymology: Eustomias: Greek, eu = good + Greek, stoma = mouth (Ref. 45335); pacificus: Named after the Pacific Ocean, to which this species is endemic..
Environment: milieu / climate zone / depth range / distribution range
生態学
海 深海浮遊性; 深さの範囲 0 - 1000 m (Ref. 11333). Deep-water
Eastern Central Pacific: off Oahu, Hawaiian Islands and from 21°N, 144°W. Also Western Central Pacific (Ref. 39804).
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 15.7 cm SL オス/雌雄の選別がない; (Ref. 11333)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 24; 臀鰭: 39; 脊つい: 69. A single, ovoid terminal bulb 0.8-1.8% SL, with nipple-like distal protuberance. Barbel 41-58% SL. A single but complex terminal filament with 2 long branches arising together near its base, followed by 1-5 large bulblets, then by 2 shortest branches arising together, each usually with a prominent large bulblet; all branches and the main filament with numerous, prominent small bulblets. Filament length 12% SL. Axis of stem lightly or unpigmented; a prominent, wide, black circle forming a cap at base of terminal bulb. External chevron-shaped or roundish striated areas unpigmented. Middorsal paired spots between occiput and dorsal-fin origin usually 7, sometimes 8. Anterior margin of fleshy orbit with a distinct slender pedicel extending posteriorly over the eye (Ref. 11333).
Mesopelagic (Ref. 58302). Environment and depth range needs to be checked.
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
Gibbs, R.H. Jr., T.A. Clarke and J.R. Gomon, 1983. Taxonomy and distribution of the stomioid fish genus Eustomias (Melanostomiidae), I: subgenus Nominostomias. Smithson. Contrib. Zool. 380:139 p. (Ref. 11333)
Human uses
用具
特記事項
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インターネットの情報源
Estimates based on models
Preferred temperature (Ref.
123201): 1.6 - 3, mean 1.7 °C (based on 57 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00117 - 0.00783), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 4.3 ±0.8 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 手段, 1.4年~4.4年の倍増期間の最小個体群 (Assuming tmax>3).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).