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) >
Nettastomatidae (Duckbill eels)
絲鰻科 (Duckbill eels)
Etymology: Nettenchelys: Greek, netta = duck + Greek, enchelys, -yos = eel (Ref. 45335); pygmaea: Named after the Greek pygmaios meaning small, dwarf, referring to the small size of the adults..
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 128 - 280 m (Ref. 37039). 熱帶
Western Central Atlantic: northern Gulf of Mexico and off Venezuela. Probably fairly widely distributed in the western Atlantic (Ref. 40819).
中西大西洋: 墨西哥灣北部與外海的委內瑞拉。 可能相當廣泛分佈於大西洋西部。 (參考文獻 40819)
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 17.5, range 15 - 20 cm
Max length : 20.1 cm TL 雄魚/尚未辨別雌雄; (Ref. 37039)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
脊椎骨: 220 - 250. Anterior median vomerine teeth enlarged. Posterior nostril on top of head just behind posterior margin of eye. Mature at 15-20 cm TL. Other characteristics: Color brown, slightly darker dorsally than ventrally. Lateral line pores to anus number 40-42 (Ref. 37039).
前面的中央犛骨齒增大了。 在頭頂上的後鼻孔在眼的後緣正後方。 在 15-20 公分TL 時成熟。 其他的特性: 褐色的, 顏色略深的背面超過腹地。 對 40 號肛門-42 的側線孔.(參考文獻 37039)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
中西大西洋: 墨西哥灣北部與外海的委內瑞拉。 可能相當廣泛分佈於大西洋西部。 (參考文獻 40819)
McEachran, J.D. and J.D. Fechhelm, 1998. Fishes of the Gulf of Mexico. Volume 1: Myxiniformes to Gasterosteiformes. University of Texas Press, Austin. 1112p. (Ref. 37039)
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Estimates based on models
Preferred temperature (Ref.
123201): 14.7 - 23.2, mean 18.6 °C (based on 31 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00089 (0.00036 - 0.00223), b=2.98 (2.77 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
