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Opisthoproctus soleatus  Vaillant, 1888

Barrel-eye
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| Native range | All suitable habitat | PointMap | Year 2100 |
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Opisthoproctus soleatus   AquaMaps   Data sources: GBIF OBIS
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Image of Opisthoproctus soleatus (Barrel-eye)
Opisthoproctus soleatus
Picture by Welter-Schultes, F.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Osmeriformes (Smelts) > Opisthoproctidae (Barreleyes or spookfishes)
Etymology: Opisthoproctus: Greek, opisthe = behind + Greek,proktos = anus (Ref. 45335).   More on author: Vaillant.

Environment / Climate / Range Ecology

Marine; bathypelagic; depth range 300 - 800 m (Ref. 6542), usually 500 - 700 m (Ref. 6542).   Deep-water; 51°N -

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 1 - ? cm
Max length : 10.5 cm SL male/unsexed; (Ref. 6542)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 11-13; Anal spines: 0. Sides of body dark; head below and behind eye sprinkled with large melanophores; snout translucent ventrally, transparent dorsally (Ref. 6597). Anal fin either with 2-3 rudimentary rays or not visible externally (Ref. 6597).

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

Circumglobal in tropical to temperate waters. Eastern Atlantic: western Ireland to Mauritania and from Sierra Leone to Angola (Ref. 6542). South China Sea (Ref.74511)

Biology     Glossary (e.g. epibenthic)

Mesopelagic (Ref. 58302). Probably not exhibiting vertical migration (Ref. 6686). The limits of its distribution coincide with the 400m-isotherm for 8°C (Ref. 6542).

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

Main reference Upload your references | References | Coordinator | Collaborators

Quéro, J.-C., 1990. Opisthroproctidae. p. 241-243. In J.C. Quero, 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. 1. (Ref. 6542)

IUCN Red List Status (Ref. 96402)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: of no interest
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | National databases | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), based on all LWR estimates for this body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.6   ±0.1 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .
Price category (Ref. 80766):   Unknown.