Rouleina attrita, Softskin smooth-head

Rouleina attrita (Vaillant, 1888)

Softskin smooth-head
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Rouleina attrita   AquaMaps   Data sources: GBIF OBIS
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Image of Rouleina attrita (Softskin smooth-head)
Rouleina attrita
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Alepocephaliformes (Slickheads and tubeshoulders) > Alepocephalidae (Slickheads)
More on author: Vaillant.

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

Marine; bathypelagic; depth range 450 - 2300 m (Ref. 50610). Deep-water; 65°N - 36°S, 180°W - 180°E (Ref. 57328)

Distribution Territories | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Circumglobal, widely distributed in the Atlantic, most Indian Ocean submarine ridges, Subantarctic, North Pacific and tropical western and eastern Pacific.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 48.0 cm SL male/unsexed; (Ref. 4460)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 18 - 21; Anal spines: 0; Anal soft rays: 18 - 21.
Body shape (shape guide): elongated.

Biology     Glossary (e.g. epibenthic)

Captured between 1,400-2,100 m in the Atlantic Ocean; 1,120-1,650 m in the Indian Ocean; 585-1,416 off Australia; 1,020-1,540 in Western Pacific; 911-1,187 Eastern Pacific and Bering Sea; and 800-1,400 m in the Pacific Ocean (Ref. 5003, 57826). Found on the continental slope (Ref. 75154). Maximum depth reported from Ref. 4460. Upper distribution of this species may follow the 4°C isotherm (Ref. 57826).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Sazonov, Y.I. and D.F. Markle, 1990. Alepocephalidae. p. 111-114. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. 462 p. (Ref. 5003)

IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))

  Least Concern (LC) ; Date assessed: 11 July 2012

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items (preys)
Diet composition
Food consumption
Food rations
Predators
Ecology
Ecology
Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
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Abundance
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Maturity
Maturity/Gills rel.
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Distribution
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References

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | National databases | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index
(Ref. 82804) 		PD50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00380 (0.00189 - 0.00765), b=3.22 (3.04 - 3.40), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level
(Ref. 69278) 		3.6   ±0.5 se; based on size and trophs of closest relatives
Resilience
(Ref. 120179) 		Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability
(Ref. 59153) 		High vulnerability (56 of 100). 🛈