分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Stomiiformes (Lightfishes and dragonfishes) >
Gonostomatidae (Bristlemouths)
Etymology: Cyclothone: Greek, kyklothen, in circle, around (Ref. 45335); microdon: microdon meaning small toothed (Ref. 6885).
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海區的; 深度上下限 200 - 5301 m (Ref. 58426), usually 500 - 2700 m (Ref. 82363). ; 67°N - 45°S, 180°W - 180°E
Widely distributed in all Atlantic, tropical and austral Indian and Pacific Oceans (Ref. 4463). Southern Ocean: probably circum-Antarctic between the Antarctic Polar Front and the Antarctic continental shelf (Ref. 5162).
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 3.3, range 3 - 3.5 cm
Max length : 7.6 cm TL 雄魚/尚未辨別雌雄; (Ref. 4925)
背棘 (總數): 0; 背的軟條 (總數): 13-15; 臀棘 0; 臀鰭軟條: 17 - 20. Brown to brown-black in color; dense stellate pigment over head, body and fins (Ref. 3991).
An oceanic, deep mesopelagic to bathypelagic species (Ref. 4769). Precise depth range dependent upon developmental stage, latitude, season (Ref. 4769). Doest not exhibit diel vertical migrations (Ref. 4769). A non-seasonal breeder with no recognizable age-cohorts (Ref. 82363). Feeds mainly on copepods (Ref. 4769).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Protandrous, sex reversal observed in the eastern North Atlantic (Ref. 5162). Sex reversal at 22-24 mm SL (Ref. 4769).
Quéro, J.-C., J.C. Njock and M.M. de la Hoz, 1990. Gonostomatidae. p. 283-292. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4463)
人類使用
漁業: 沒有興趣
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Estimates based on models
Preferred temperature (Ref.
123201): 1.8 - 8.2, mean 3.2 °C (based on 7820 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00171 - 0.00885), b=2.99 (2.79 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.0 ±0.13 se; based on food items.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Assuming tm>1; Fec=2,000-10,000).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).