Australia country information

Common names: Darwin's roughy, Darwin's roughy, Finescale roughy
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs in southern Western Australia, South Australia and New South Wales (Ref. 9563). Also Ref. 3583.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/as.html
National Fisheries Authority: http://www.csiro.au/
Occurrences: Occurrences Point map
Main Ref: Woods, L.P. and P.M. Sonoda, 1973
National Database:

Common names from other countries

Darwin's red-fish, Darwin's roughy, Big roughy, ... more

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

> Trachichthyiformes (Roughies) > Trachichthyidae (Slimeheads)
Etymology:

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

marino benthopelagico; distribuzione batimetrica 9 - 1210 m (Ref. 9872), usually 200 - 500 m (Ref. 3583). Subtropical; 43°N - 35°S

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

Eastern Atlantic: Madeira and the Canary Islands to Senegal, Gulf of Guinea and South Africa. Western Atlantic: southern Scotian Shelf, Canada to Greater Antilles, western Caribbean, Panama and northern Gulf of Mexico (Ref. 7334). Indo-Pacific: off Natal (South Africa), Bay of Bengal, southern Australia, Chatham Plateau around New Zealand, and the Philippines (Ref. 4181). Also in northern South America (Moore, pers. comm.).

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 60.0 cm TL maschio/sesso non determinato; (Ref. 3695); common length : 45.0 cm TL maschio/sesso non determinato; (Ref. 3695)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 7 - 8; Raggi dorsali molli (totale) : 13 - 14; Spine anali: 3; Raggi anali molli: 11 - 12. Head with a concave forehead profile and with large mucous cavities covered by tough skin; mouth large and oblique; opercle and preopercle each with a large strong spine; body deep, about 2.1 times in SL; ventral keel with 10 - 14 very robust scutes; caudal fin forked but rounded. Color of head and body is dusky pink, sides with silvery tinge, fins red; tongue and gill cavity blackish; palate white to red (Ref. 7331). Pale beet red to light rosy. Back light red to brownish red, lower sides light silvery gray (Ref. 37108).

Lives close to or on the bottom of the upper continental slope. Prefers hard substrates. Young specimens feed on small shrimps and fish (Ref. 4784). A deep sea species, nonetheless, the young are often found near the coast (Ref. 9137). Utilized as fishmeal and source of oil in eastern central Atlantic (Ref. 3695).

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

Main reference Upload your references | Bibliografia | Coordinatore : Moore, Jon A. | Collaboratori

Maul, G.E., 1990. Trachichthyidae. p. 620-622. In J.C. Quéro, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 3583)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 19 May 2013

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Pesca: commerciale

FAO(Publication : search) | FishSource |

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Fonti Internet

Estimates based on models

Preferred temperature (Ref. 115969): 8.1 - 18.7, mean 12.2 (based on 848 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01549 (0.00901 - 0.02662), b=3.07 (2.92 - 3.22), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 3.9 ±0.65 se; based on food items.

Resilienza (Ref. 120179): Molto basso, tempo minimo di raddoppiamento della popolazione più di 14 anni (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (44 of 100).

Price category (Ref. 80766): Low.

Gephyroberyx darwinii (Johnson, 1866)