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Glaucostegus halavi  (Forsskål, 1775)

Halavi ray
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Glaucostegus halavi   AquaMaps   Data sources: GBIF OBIS
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Image of Glaucostegus halavi (Halavi ray)
Glaucostegus halavi
Picture by Randall, J.E.

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

Elasmobranchii (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Rhinobatidae (Guitarfishes) > Rhinobatinae

Environment / Climate / Range Ecology

Marine; benthopelagic; depth range 0 - 40 m (Ref. 30573).   Subtropical, preferred ?

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

Indo-West Pacific: Red Sea to Gulf of Oman. Nominal records east of Oman need to be confirmed.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 83 - ? cm
Max length : 120 cm WD male/unsexed; (Ref. 8630)

Biology     Glossary (e.g. epibenthic)

Found inshore (Ref. 9909). Feed on small mollusks and bony fishes (Ref. 12951). Ovoviviparous (Ref. 50449). Utilized where it occurs but information lacking (Ref. 9909).

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

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).

Main reference Upload your references | References | Coordinator : McEachran, John | Collaborators

Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766)

IUCN Red List Status (Ref. 115185)

  Data deficient (DD) 

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

More information

Countries
FAO areas
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Ecology
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Common names
Synonyms
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Predators
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Spawning
Fecundity
Eggs
Egg development
Age/Size
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Length-weight
Length-length
Length-frequencies
Morphometrics
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Larvae
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Ciguatera
Speed
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Otoliths
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Summary page | Point data | Common names | Photos

Internet sources

Alien/Invasive Species database | BHL | Cloffa | 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 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00223 - 0.02148), b=3.05 (2.80 - 3.30), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  4.1   ±0.67 se; Based on food items.
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Vulnerability (Ref. 59153):  Very high vulnerability (77 of 100) .