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> Ophidiiformes (Cusk eels) > Bythitidae (Livebearing brotulas)
Etymology: Sciadonus: Derived from Greek, skiaina, skion = a fish, red mullet + Greek, onos = hake; robinsorum: Named for C. Richard Robins (formerly from UMML) and Rob Robins (UF).

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

seewasser bathydemersal; tiefenbereich 4416 - 4422 m (Ref. 118598). Deep-water

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Southwest Atlantic: off NE Brazil

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 4.7 cm SL Männchen/unbestimmt; (Ref. 118598)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenweichstrahlen (insgesamt) : 81; Afterflossenweichstrahlen: 53; Wirbelzahl: 77. This species is distinguished by the following characters: horizontal mouth with no tissue flaps anteriorly on protruding lower jaw; no distinct black pigment spots through the transparent skin; D 81, A 53, pectoral 14 and no pelvic fins; precaudal vertebrae 37, total 77; predorsal length 42.5 % SL (Ref. 118598).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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Nielsen, J.G., 2018. Revision of the cosmopolitan deep-sea genus Sciadonus (Teleostei, Bythitidae) with two new species. Cybium 42(2):177-187. (Ref. 118598)

IUCN Rote Liste Status (Ref. 130435: Version 2024-2)

Daten mangelhaft (DD) ; Date assessed: 11 October 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

Fischereien: nicht kommerziell

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00447 (0.00172 - 0.01163), b=3.10 (2.87 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.5 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).

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

Sciadonus robinsorum Nielsen, 2018