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> Ophidiiformes (Cusk eels) > Dinematichthyidae (Viviparous brotula)
Etymology: Diancistrus: Greek, di = two + Greek, agkistron = hook (Ref. 45335); niger: Named for its black color..
More on authors: Schwarzhans, Møller & Nielsen.

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

marino associati a barriera corallina; distribuzione batimetrica 2 - 10 m (Ref. 90102). Tropical

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Western Pacific: (Vogelkop Peninsula, Irian Jaya, New Guinea (Indonesia).

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 4.5 cm SL maschio/sesso non determinato; (Ref. 57884); 4.4 cm SL (female)

Short description Chiavi di identificazione | Morfologia | Morfometria

Raggi dorsali molli (totale) : 69 - 76; Raggi anali molli: 52 - 59; Vertebre: 41 - 43. This species is characterized by the following: vertebrae 11+30-32=41-43, dorsal fin rays 69-76, anal fin rays 52-59; large eyes (3.0-3.6% SL); outer pseudoclasper large, broad, ear-lobe shaped, opening ventrally; inner pseudoclasper a fleshy appendix at anterior-inner rim of outer pseudoclasper, without supporter; no scales on operculum; head is compressed, blunt; otoliths elongate, ratio otolith length: height 2.3, anterior and posterior tips of otolith almost equally pointed; color dark grey to black when preserved (Ref. 57884).

Solitary inhabitant of coral reef crevices between about 2-10 m depth, cryptic (Ref 90102).

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Schwarzhans, W., P.R. Møller and J.G. Nielsen, 2005. Review of the Dinematichthyini (Teleostei, Bythitidae) of the Indo-West-Pacific. Part I. Diancistrus and two new genera with 26 new species. The Beagle, Records of the Museum and Art Galleries of the Northern Territory 21:73-163. (Ref. 57884)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 15 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesca: di nessun interesse

FAO - Publication: search | FishSource |

Informazioni ulteriori

Trophic ecology
Prede
Diet compositions
Food consumptions
Food rations
Predatori

Ecology
Ecologia

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
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Recruitments
Abundances

Life cycle
Riproduzione
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larve
Dinamica popolazioni larvali

Distribution
Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
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Anatomy
Gill areas
Cervelli
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Suoni dei Pesci
Diseases / Parasites
Toxicities (LC50s)

Genetics
Genetica
Electrophoreses
Heritabilities

Human related
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Profili di acquacoltura
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Stamps, coins, misc.

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

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

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

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Diancistrus niger Schwarzhans, Møller & Nielsen, 2005