Sphyrna mokarran, Great hammerhead : fisheries

Sphyrna mokarran (Rüppell, 1837)

Great hammerhead
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Sphyrna mokarran   AquaMaps   Data sources: GBIF OBIS
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Sphyrna mokarran
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Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (tubarões e raias) (sharks and rays) > Carcharhiniformes (Ground sharks) > Sphyrnidae (Hammerhead, bonnethead, or scoophead sharks)
Etymology: Sphyrna: Greek, sphyra = hammer (Ref. 45335).  More on author: Rüppell.

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

; marinhas; estuarina; oceanódromo (Ref. 51243); intervalo de profundidade 1 - 300 m (Ref. 37816), usually 1 - 100 m (Ref. 89972).   Subtropical; 40°N - 37°S, 180°W - 180°E

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

Circumglobal in coastal warm temperate and tropical seas (Ref. 13562). Western Atlantic: North Carolina, USA to Uruguay, including the Gulf of Mexico and Caribbean. Eastern Atlantic: Mediterranean and Morocco to Senegal. Indo-Pacific: throughout the Indian Ocean; Ryukyu Islands to New Caledonia and French Polynesia. Eastern Pacific: southern Baja California, Mexico to Peru. Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea (Ref. 26139).

Comprimento de primeira maturação / Tamanho / Peso / Idade

Maturity: Lm ?, range 210 - 300 cm
Max length : 610 cm TL macho/indeterminado; (Ref. 244); common length : 370 cm TL macho/indeterminado; (Ref. 13562); peso máx. publicado: 449.5 kg (Ref. 40637); idade máx. registrada: 30 anos (Ref. 116211)

Descrição suscinta Morfologia | Morfometria

Espinhos dorsais (total): 0; Raios dorsais (total): 0; Espinhos anais 0; Raios anais : 0. A very large hammerhead also with a notch at the center of the head (Ref. 5578). Front margin of head gently curved in juveniles, becoming nearly straight in adults, with slight median notch (Ref. 26938). 1st dorsal fin very high and curved; 2nd dorsal and pelvic fins high and with deeply concave rear margins. Light grey or grey-brown above, white below; fins without conspicuous markings (Ref. 5578).

Biologia     Glossário (p.ex. epibenthic)

A coastal-pelagic, semi-oceanic shark, found close inshore and well offshore, over the continental shelves, island terraces, and in passes and lagoons (Ref. 244, 58302). Often bottom and reef associated at 1-80 m (Ref. 58302). Prefers to feed on stingrays and other batoids, groupers and sea catfishes, but also preys on other small bony fishes, crabs, squid, other sharks, rays, and lobsters (Ref. 244, 13562, 1602). A viviparous species, with 13-42 of about 56 to 70 cm young in a litter (Ref. 26938, 1602). Potentially dangerous to people (Ref. 13562) but only few, if any, of the attacks on people can be definitely attributed to it because of the apparent difficulty of distinguishing large hammerhead species involved in attacks (Ref. 244). Caught occasionally by target shark longline, demersal tangle net and tuna gillnet fisheries (Ref.58048). Meat utilized for human consumption (fresh, fresh-frozen, dried-salted, and smoked), liver oil for vitamins, fins for soup, hides for leather, and carcasses for fishmeal (Ref. 244). Its large fins, including the tail, sail-like first dorsal fin, are prized in the Oriental sharkfin trade (Ref. 47737).

Ciclo de vida ou comportamento de acasalamento Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

Viviparous with a yolk sac placenta and 13-42 young in a litter (Ref. 244); 6-42 pups after gestation period of ~11 months (Ref.58048). Size at birth between 50 to 70 cm TL (Ref.58048, 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)

Status na Lista Vermelha da UICN (Ref. 123251)

  Criticamente em perigo (CR) (A2bd); Date assessed: 09 November 2018

CITES (Ref. 123416)


Ameaça para os humanos

Other (Ref. 244)





Uso pelos humanos

Pescarias: espécies comerciais
FAO - Publication: search | FishSource | Sea Around Us

Mais informação

Nomes comuns
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Metabolismo
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Maturidade
Desova
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Fecundidade
Ovos
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Frequências de comprimento
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Estimates based on models

Preferred temperature (Ref. 115969): 21.3 - 28.9, mean 27.2 °C (based on 4410 cells).
Índice de diversidade filogenética (Ref. 82805):  PD50 = 0.5029   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00229 (0.00131 - 0.00401), b=3.10 (2.94 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Nível Trófico (Ref. 69278):  4.3   ±0.5 se; based on diet studies.
Resiliência (Ref. 120179):  Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (tmax=30; tm=8.2; Fec=13).
Vulnerabilidade (Ref. 59153):  Very high vulnerability (86 of 100) .
Categoria de preço (Ref. 80766):   High.
Nutrients (Ref. 124155):  Calcium = 12.5 [1.9, 52.9] mg/100g ; Iron = 1.04 [0.30, 3.03] mg/100g ; Protein = 18.8 [16.6, 21.0] % ; Omega3 = 0.396 [0.137, 1.069] g/100g ; Selenium = 29.6 [6.1, 92.2] μg/100g ; VitaminA = 8.41 [2.34, 32.61] μg/100g ; Zinc = 0.472 [0.214, 1.140] mg/100g (wet weight);