Classification / Names
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Anguilliformes (Eels and morays) >
Congridae (Conger and garden eels) > Congrinae
Etymology: Macrocephenchelys: Greek, makros = great + Greek,kephale = head + Greek, enchelys, -yos = eel (Ref. 45335); nigriventris: Name from Latin 'nigri-' for black, dark, and '-ventris' for under side, belly, referring to the conspicuous black pigment on the posterior abdomen and anus.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina djupbottenlevande; djupintervall 100 - 120 m (Ref. 129313). Subtropical
Northwestern Pacific: Taiwan.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 24.1 cm TL hane/ej könsbestämd; (Ref. 129313)
Short description
Bestämningsnycklar | Morfologi | Morfometri
This species is distinguished by the following characters: body robust and with fleshy papillae on the head and sensory pits on the ventral surface of head and body; with conspicuous patch of melanophores around the anus; preanal length 24.4-28.0 %TL; pre-anal lateral-line pores 19-24, 2 mandibular pores; vertebrae 125-135; posterior dorsal-fin origin over tip of pectoral fin (Ref. 129313).
Four adult females of the 28 specimens taken from northeastern and southwestern Taiwan were with mature ovary and eggs at small body size (180–221 mm) (Ref. 129313).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Lin, J., Shao. K.-T. and D.G. Smith, 2018. The eel genus Macrocephenchelys (Anguilliformes: Congridae) in Taiwan, with description of a new species. Zootaxa 4454(1):186-199. (Ref. 129313)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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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=0.00063 (0.00029 - 0.00138), b=3.18 (3.00 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.7 ±0.5 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (14 of 100).
