Glaucostegus halavi, Halavi ray : fisheries

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Glaucostegus halavi (Fabricius, 1775)

Halavi ray
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Native range | All suitable habitat | Point map | Year 2050
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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 आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa

इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Glaucostegidae (Giant guitarfishes)

Environment: milieu / climate zone / गहराई सीमा / distribution range पारिस्थितिकी

समुद्री बेनथोपिलाजिक; गहराई सीमा 0 - 100 m (Ref. 114953). Subtropical; 28°N - 12°N, 33°E - 68°E (Ref. 114953)

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | बिन्दु नक्शा | भूमिका | Faunafri

Western Indian Ocean: Red Sea, Gulf of Oman, and probably Gulf of Aden and other areas of NE Arabian Sea. Reports from Mediterranean Sea and elsewhere in Indo-Pacific need confirmation.

Length at first maturity / आकार / वज़न / Age

परिपक्व अवधि: Lm ?, range 83 - ? cm
Max length : 120 cm WD पुल्लिंग / अलिंग; (Ref. 8630)

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ epibenthic)

A benthic species often found in very shallow water near the coast and offshore on the continental shelf (Ref. 9909, Ref.114953). Feed on small mollusks and bony fishes (Ref. 12951) and crustaceans (Ref. 127960). Ovoviviparous (Ref. 50449). Produces up to 10 pups a litter, mainly from May to October (in the Red Sea region) (Ref. 114953). Size at least 171 cm TL. Males matures at ca. 83 cm TL, birth size at ca. 29 cm TL (Ref.114953). Utilized where it occurs but information lacking (Ref. 9909). A target species and utilised bycatch mainly in artisanal fisheries (Ref. 127960).

Life cycle and mating behavior परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा

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 | संदर्भ | संयोजक | सहयोगीयो

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. 130435: Version 2025-1)

  Critically Endangered (CR) (A2bd); Date assessed: 03 December 2018

CITES


CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

मात्स्यिकी: bycatch
FAO - Publication: search | FishSource |

अधिक जानकारी

Trophic ecology
Food items (preys)
संघटक आहार
आहार खपत
Food rations
परभक्षी
पारिस्थितिकी
पारिस्थितिकी
Home ranges
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
भर्ती
बहुतायत
Life cycle
पुनरुत्पत्ति
परिपक्व अवधि
Maturity/Gills rel.
Fecundity
मछलीऔ का अंडे देना
Spawning aggregations
अंडे
Egg development
लार्वा
लारवल गतिकी
Anatomy
गिल क्षेत्र
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
आनुवंशिकी
Genome
आनुवंशिकी
Heterozygosity
हैरेटिबिलटी
Human related
Aquaculture systems
जलीयकृषि रूपरेखाऐ
खींच
Ciguatera cases
Stamps, coins, misc.
संदर्भ
संदर्भ

साधन

Special reports

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इंटरनेट स्रोत

AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: वर्ग, प्रजाति | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, खोज | Zoological Record

Estimates based on models

Preferred temperature (संदर्भ 123201): 24.7 - 29.1, mean 27.9 °C (based on 1002 cells).
Phylogenetic diversity index (संदर्भ 82804):  PD50 = 0.5020   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00141 - 0.01074), b=3.05 (2.82 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (संदर्भ 69278):  4.1   ±0.67 se; based on food items.
लौटाव (संदर्भ 120179):  निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100). 🛈