Eusphyra blochii, Winghead shark : fisheries

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Eusphyra blochii (Cuvier, 1816)

Winghead shark
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Eusphyra blochii   AquaMaps   Data sources: GBIF OBIS
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Image of Eusphyra blochii (Winghead shark)
Eusphyra blochii
Female picture by Harris, M.

Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (tubarões e raias) (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).
More on author: Cuvier.

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

marinhas; estuarina bentopelágico; anfídromo (Ref. 51243). Tropical; 31°N - 20°S, 47°E - 154°E

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

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

Length at first maturity / Tamanho / Peso / Idade

Maturity: Lm ?, range 120 - ? cm
Max length : 186 cm TL macho/indeterminado; (Ref. 6871)

Descrição breve Morfologia | Morfometria

Espinhos dorsais (total): 0; Raios dorsais moles (total): 0; Espinhos anais 0; Raios anais moles: 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).

Biologia     Glossário (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).

Life cycle and mating behavior Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

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).

Referência principal Upload your references | Referências | Coordenador : Compagno, Leonard J.V. | Colaboradores

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)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

  Ameaçada (EN) (A2d+3d); Date assessed: 18 February 2015

CITES


CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

  Harmless (Ref. 13562)





Utilização humana

Pescarias: espécies comerciais
FAO - Publication: search | FishSource |

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Fontes da internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Consultar FishWatcher | CISTI | Catalog of Fishes: Género, Espécies | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genoma, nucleotídeo | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Bases de dados nacionais | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Árvore da vida | Wikipedia: ir para, procurar | World Records Freshwater Fishing | Registo zoológico

Estimates based on models

Preferred temperature (Ref. 123201): 25.2 - 29.1, mean 28.3 °C (based on 970 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0010   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00275 - 0.00956), b=3.24 (3.07 - 3.41), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Nível Trófico (Ref. 69278):  4.2   ±0.6 se; based on diet studies.
Resiliência (Ref. 120179):  Muito baixo, tempo mínimo de duplicação da população maior que 14 anos (Fec=6).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
Categoria de preço (Ref. 80766):   High.
Nutrients (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);