分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
メクラウナギ (hagfishes) >
Myxiniformes (Hagfishes) >
Myxinidae (Hagfishes) > Eptatretinae
Etymology: Eptatretus: hepta (Gr.), seven; tretos (Gr.), perforated (i.e., with holes), referring to seven gill apertures on what would later be described as Homea banksii (=E. cirrhatus) [range within genus is 6-14 pairs of gill apertures]. (See ETYFish); stoutii: In honor of Arthur B. Stout (1814-1898), surgeon and corresponding secretary of the California Academy of Sciences [see box, below]. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生態学
海 底生の; 移住性ではない; 深さの範囲 16 - 966 m (Ref. 96339). Temperate; 58°N - 20°N, 137°W - 105°W
Eastern Pacific: southeastern Alaska to Bahia San Pablo, central Baja California, Mexico.
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm 42.0  range ? - ? cm
Max length : 63.5 cm TL オス/雌雄の選別がない; (Ref. 96339)
簡単な記述
形態学 | 形態計測学
背面の脊椎 (合計): 0; 背鰭 (合計): 0; 肛門の骨 0; 臀鰭: 0. No true fins - one dorsal finfold, far back, median, very low, continuous with caudal; caudal broad, rounded; ventral finfold very low, origin somewhat posterior to last gill pore, extending to anus (Ref. 6885). Dark brown, tan, gray, or brownish red, often tinted with blue or purple, never black, lighter ventrally, rarely with large patches of white; preserved specimens light brown (Ref. 6885).
Inhabits fine silt and clay bottoms (Ref. 6885). Enters large fishes by way of the mouth and anus and feed on its viscera and muscles (Ref. 6885). May greatly diminish catches taken with fixed gears (Ref. 6885). Produces mucilaginous slime when harassed (Ref. 6885). Probably exhibits hermaphroditism (Ref. 56947). Due to its primitive metabolism it is collected for research purposes (Ref. 6885). TBK: demerspelag.
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Copulatory organ absent (Ref. 51361). Presence of bisexual juvenile gonad, requires further investigation regarding hermaphroditism (Ref. 56947). In one study (Ref. 40710), hermaphroditism is exhibited by only 0.2% of the individuals studied.
Fernholm, B., 1998. Hagfish systematics. p. 33-44. In J.M. Jørgensen, J.P. Lomholt, R.E. Weber and H. Malte (eds.) The biology of hagfishes. Chapman & Hall, London. 578 p. (Ref. 31276)
Human uses
水産業: 興味がない; 水族館・水槽: 公共の水族館
より多くの情報
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
用具
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インターネットの情報源
Estimates based on models
Preferred temperature (Ref.
123201): 5.8 - 9.4, mean 7.1 °C (based on 54 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00288 (0.00170 - 0.00489), b=2.88 (2.73 - 3.03), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
栄養段階 (Ref.
69278): 4.2 ±0.70 se; based on food items.
回復力 (Ref.
120179): 低い, 4.5年~14年の倍増期間の最小個体群 (Fec = 28).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (45 of 100).