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Rhynchohyalus natalensis (Gilchrist & von Bonde, 1924)

Glasshead barreleye
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Native range | All suitable habitat | Point map | Year 2050
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Rhynchohyalus natalensis   AquaMaps   Data sources: GBIF OBIS
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Image of Rhynchohyalus natalensis (Glasshead barreleye)
Rhynchohyalus natalensis
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Argentiniformes (Marine smelts) > Opisthoproctidae (Barreleyes or spookfishes)
Etymology: Rhynchohyalus: Greek, rhingchos = snout + Greek, hyalos, ou = glass (Ref. 45335).

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

Marine; pelagic-oceanic; depth range ? - 775 m (Ref. 86942). Tropical; 35°N - 49°S, 89°W - 154°W

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

Eastern Atlantic: Madeira and off Cape Town, South Africa (Ref. 6597). Western Atlantic: in tropical waters. Western Pacific: off the Ogasawara Islands (Ref. 559), Australia (Ref. 7300), and New Zealand (Ref. 5755). Reported from the Hawaiian Islands (Ref. 58302).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm SL male/unsexed; (Ref. 6542)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 10 - 12; Anal spines: 0; Anal soft rays: 7 - 10. Scattered melanophores ventrally; pelvic fins and area around anus black; head translucent (Ref. 6597). Body compressed. Brown in preserved specimen, with black pigment cells scattered in lower half (Ref. 37473).

Biology     Glossary (e.g. epibenthic)

Mesopelagic (Ref. 58302). Eggs and larvae are pelagic. Does not exhibit diurnal vertical migration (Ref. 6686).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | 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. 130435)

  Least Concern (LC) ; Date assessed: 10 July 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
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Ecology
Ecology
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Length-weight rel.
Length-length rel.
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BRUVS - Videos
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Visual pigment(s)
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Genetics
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Internet sources

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

Estimates based on models

Preferred temperature (Ref. 123201): 12.4 - 23.5, mean 17.8 °C (based on 262 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.00844 - 0.05670), b=2.98 (2.75 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.7   ±0.1 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).