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Scopeloberyx robustus  (Günther, 1887)

Longjaw bigscale
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Scopeloberyx robustus   AquaMaps   Data sources: GBIF OBIS
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Image of Scopeloberyx robustus (Longjaw bigscale)
Scopeloberyx robustus
Picture by Welter-Schultes, F.

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

Actinopterygii (ray-finned fishes) > Stephanoberyciformes (Pricklefishes, bigscales and gibberfishes) > Melamphaidae (Bigscale fishes or ridgeheads)

Environment / Climate / Range Ecology

Marine; bathypelagic; depth range 0 - 4740 m (Ref. 58018), usually 500 - ? m (Ref. 36655).   Deep-water, preferred ?

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

Circumglobal: In tropical to temperate waters; except Arctic Ocean and Mediterranean Sea. Eastern Atlantic: Gulf of Guinea and west of the Canary Islands. Eastern Pacific: California Current region (Ref. 36655). Western Pacific: Kuril Island (Ref. 52443). South China Sea (Ref.74511).

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 3 - 7.3 cm
Max length : 7.3 cm SL male/unsexed; (Ref. 4241)

Short description Morphology | Morphometrics

Dorsal spines (total): 2 - 3; Dorsal soft rays (total): 10-13; Anal spines: 1; Anal soft rays: 7 - 9; Vertebrae: 24. Dark brown body; black head, mouth, and branchial cavity; pigmented fins. Transverse rows of scales, 28 (Ref. 31511). Gill rakers on the first arch, 14-17 (Ref. 37108).

Biology     Glossary (e.g. epibenthic)

Mesopelagic and bathypelagic at 340-1200 m depth (Ref. 36665). Oviparous, with planktonic eggs and larvae (Ref. 36655). Significant morphological variation between Indo-Pacific and other populations.

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

Oviparous (Ref. 36655).

Main reference Upload your references | References | Coordinator | Collaborators

Ebeling, A.W., 1986. Melamphaidae. p. 427-432. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4241)

IUCN Red List Status (Ref. 115185)

  Data deficient (DD) 

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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Summary page | Point data | Common names | Photos

Internet sources

BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5020   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00393 - 0.02664), b=3.04 (2.81 - 3.27), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.1   ±0.30 se; Based on food items.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Moderate vulnerability (41 of 100) .