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Saccopharyngiformes (Swallowers and gulpers) >
Monognathidae (Onejaws)
Etymology: Monognathus: Greek, monos = one + Greek, gnathos = jaw (Ref. 45335); berteli: Named after the late Erik Bertelsen (alias Bertel) in recognition of his contribution to our knowledge of the Monognathidae and many other groups of deep sea fishes.
Eponymy: Dr Erik ‘Bertel’ Bertelsen (1912–1993) was a celebrated Danish fisheries biologist and ichthyologist at the Zoological Museum of the University of Copenhagen. [...] (Ref. 128868), visit book page.
More on authors: Nielsen & Hartel.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina batypelagisk; djupintervall 1018 - 1430 m (Ref. 40803). Deep-water
Western Indian Ocean: Somalia.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.8 cm OT hane/ej könsbestämd; (Ref. 40803)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 96; Mjukstrålar i analfenan: 50; Ryggkotor: 86. Belongs to the short-skulled species-group of Monognathus. Anterior dorsal fin-ray above vertebra number 4, five vertebrae between anus and anal fin, length of pectoral fins 9.5% and posterior urostyle filament 53% of total length.
Length measured from tip of snout to base of urostyle.
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Nielsen, J.G. and K.E. Hartel, 1996. Monognathus berteli sp. nov. from the Indian Ocean (Pisces, Monognathidae). Ichthyol. Res. 43(2):113-115. (Ref. 40803)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fiskeri: saknar intresse
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).