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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..
More on authors: Nielsen & Hartel.

Environment: milieu / climate zone / depth range / distribution range Ökologie

seewasser bathypelagisch; tiefenbereich 1018 - 1430 m (Ref. 40803). Deep-water

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Western Indian Ocean: Somalia.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 5.8 cm OT Männchen/unbestimmt; (Ref. 40803)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenweichstrahlen (insgesamt) : 96; Afterflossenweichstrahlen: 50; Wirbelzahl: 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 Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

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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 Rote Liste Status (Ref. 130435)

Daten mangelhaft (DD) ; Date assessed: 13 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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).

Trophic level (Ref. 69278): 3.3 ±0.5 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Monognathus berteli Nielsen & Hartel, 1996