Eusphyra blochii, Winghead shark : fisheries

Eusphyra blochii (Cuvier, 1816)

Winghead shark
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Eusphyra blochii   AquaMaps   Data sources: GBIF OBIS
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Image of Eusphyra blochii (Winghead shark)
Eusphyra blochii
Female Photo de Harris, M.

Classification / Noms Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa

Élasmobranches (requins et raies) (sharks and rays) > Carcharhiniformes (Ground sharks) > Sphyrnidae (Hammerhead, bonnethead, or scoophead sharks)
Etymology: Eusphyra: eu- (Gr.), good, well or very; sphyra (Gr.), hammer, referring to immense hammer-shaped head (See ETYFish)blochii: In honor of physician-naturalist Marcus Elieser Bloch (1723-1799), who described and illustrated this shark in 1785, which he identified as Squalus zygaena (See ETYFish).
Eponymy: Marcus Élieser Bloch (1723–1799) was a German physician and naturalist specialising in ichthyology. [...] (Ref. 128868), visit book page.
More on author: Cuvier.

Taxonomic Remarks
Eusphyra laticeps (Cantor, 1837) is a valid species after Fernando et al 2019 (Ref. 120444).

Environnement : milieu / zone climatique / profondeur / gamme de distribution Écologie

marin; saumâtre benthopélagique; amphidrome (Ref. 87829). Tropical; 31°N - 20°S, 47°E - 154°E

Distribution Territoires | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri

Indo-West Pacific: Persian Gulf to the Philippines, north to China, south to Australia.

Longueur à la première maturité / Taille / Poids / Âge

Maturité: Lm ?, range 120 - ? cm
Max length : 186 cm TL mâle / non sexé; (Ref. 6871)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 0; Épines anales: 0. Grey or grey-brown above, paler below. Expanded lateral blades of head very narrow and wing-like, with a series of small bumps along edges in front of nostrils; width across head 40 or 50% of total length. Nostrils enormously expanded, each nearly 2 times the mouth head (Ref 13562).
Body shape (shape guide): elongated.

Biologie     Glossaire (ex. epibenthic)

Found in shallow water on continental and insular shelves (Ref. 244). Enters estuaries (Ref. 4832). Feeds mainly on small teleost fishes but also takes crustaceans and cephalopods (Ref. 13562). Viviparous (Ref. 50449), with 6 to 25 pups in a litter (Ref. 6871). Has a remarkable wing-shaped head which is nearly or quite half of its body length, the function of which is uncertain, maybe for maneuvering or for increasing the surface area of some of the sense organs (Ref. 244). Probably harmless to people (Ref. 13562). Caught commonly, but in low numbers, by inshore gillnet fisheries. Particularly common in catches off Kalimantan (Ref.58048). Probably a common fisheries species where it occurs (Ref. 13562). Meat utilized for human consumption; liver is a source of vitamin oil (Ref. 244). Offal probably utilized for fishmeal (Ref. 13562). Reported to reach 300 cm TL (Ref. 58784).

Cycle de vie et comportement reproducteur Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Viviparous, placental (Ref. 50449), with 6 to 25 in a litter after a gestation period of 8 (Ref.58048) -11 months (Ref. 6871). Size at birth between 32 and 45 cm TL (Ref. 13562).

Référence principale Téléchargez vos références | Références | Coordinateur : Compagno, Leonard J.V. | Collaborateurs

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)

Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))

  Niveau de menace critique (CR) (A2cd); Date assessed: 30 July 2024

CITES


CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless (Ref. 13562)





Utilisations par l'homme

Pêcheries: commercial
FAO - Publication: search | FishSource |

Plus d'informations

Écologie trophique
Aliments (proies)
Composition du régime alimentaire
Consommation alimentaire
Rations alimentaires
Prédateurs
Écologie
Écologie
Dynamique des populations
Paramètres de croissance
Âges / tailles maximales
Longueur-poids rel.
Rel. longueur-longueur.
Fréquences de longueurs
Conversion de masse
Recrutement
Abondance
Cycle de vie
Reproduction
Maturité
Maturité/épines rel.
Fécondité
Frai
Agrégats de frai
Œufs
Développement de l'œuf
Larves
Dynamique des populations larvaires
Distribution
Territoires
Zones FAO
Écosystèmes
Occurrences
Introductions
BRUVS - Vidéos
Anatomie
Surface branchiale
Cerveau
Otolithe
Physiologie
Composition corporelle
Nutriments
Consommation d'oxygène
Type de natation
Vitesse de nage
Pigments visuels
Son de poisson
Maladies et parasites
Toxicité (CL50)
Génétique
génôme
Génétique
Hétérozygotie
Héritabilité
Diversité génétique
Liées à l'homme
Systèmes d'aquaculture
Profils d'aquaculture
Souches
Cas de ciguatera
Timbres, pièces de monnaie, divers
Sensibilisation
Collaborateurs
Références
Références

Outils

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Sources Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | Bases de données nationales | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoological Record

Estimations basées sur des modèles

Indice de diversité phylogénétique
(Réf. 82804)
PD50 = 0.7501 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00525 (0.00283 - 0.00974), b=3.24 (3.08 - 3.40), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Niveau trophique
(Réf. 69278)
4.2   ±0.6 se; based on diet studies.
Résilience
(Réf. 120179)
Très faible, temps minimum de doublement de population supérieur à 14 ans (Fec=6).
Vulnérabilité de la pêche
(Ref. 59153)
High vulnerability (63 of 100). 🛈
Catégorie de prix
(Ref. 80766)
High.
Nutriments
(Ref. 124155)
Calcium = 16.6 [2.7, 88.0] mg/100g; Iron = 0.526 [0.132, 1.586] mg/100g; Protein = 18.9 [16.9, 21.1] %; Omega3 = 0.129 [0.056, 0.295] g/100g; Selenium = 76.7 [22.3, 229.5] μg/100g; VitaminA = 19 [8, 48] μg/100g; Zinc = 0.721 [0.349, 1.352] mg/100g (wet weight);