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Alopias pelagicus Nakamura, 1935

Pelagic thresher
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Alopias pelagicus   AquaMaps   Data sources: GBIF OBIS
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Image of Alopias pelagicus (Pelagic thresher)
Alopias pelagicus
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Malaysia country information

Common names: Pelagic thresher, Terng boi suar, Thresher shark
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: commercial | Ref: Ahmad, A., A.A. Abdul Haris Hilmi, A.C. Gambang, S. Ahemad and A.R. Solahuddin (eds.), 2004
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Recorded in the study during 1999-2004; first record (Ref. 53392).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/my.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Ahmad, A., A.A. Abdul Haris Hilmi, A.C. Gambang, S. Ahemad and A.R. Solahuddin (eds.), 2004
National Database:

Common names from other countries

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

Elasmobranchii (tubarões e raias) (sharks and rays) > Lamniformes (Mackerel sharks) > Alopiidae (Thresher sharks)
Etymology: Alopias: From alopex, Greek for fox, referring to the ancient vernacular “fox shark,” from its supposed cunning (ancients believed that when it took a bait, it swallowed the hook until it got to the cord, which it bit off and so escaped). (See ETYFish);  pelagicus: Pelagic, (from pelagos, Greek for sea), referring to its “living in the upper layer of the sea,” in contrast to A. profundus [=superciliosus], which Nakamura believed dwelled on the “sea-bottom”). (See ETYFish).

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

marinhas; oceanódromo (Ref. 51243); intervalo de profundidade 0 - 300 m (Ref. 106604), usually 0 - 150 m (Ref. 55167).   Tropical; 40°N - 42°S, 16°E - 70°W (Ref. 54277)

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

Circumglobal. Indo-Pacific: Red Sea, Arabian Sea, Maldives (Ref. 30829), Somalia, South Africa, Western Australia, China, Taiwan, Japan, New Caledonia, Hawaiian Islands and Tahiti. Eastern Pacific: Gulf of California and the Galapagos. Reliable records lacking partly due to its confusion with Alopias vulpinus.

Comprimento de primeira maturação / Tamanho / Peso / Idade

Maturity: Lm 287.0, range 260 - 292 cm
Max length : 428 cm TL macho/indeterminado; (Ref. 106604); 383.0 cm TL (female); common length : 276 cm TL macho/indeterminado; (Ref. ); idade máx. registrada: 29 anos (Ref. 48844)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 0; Espinhos anais: 0. A small thresher with moderately large eyes, a broadly convex forehead, a very narrow caudal tip, and straight, broad-tipped pectoral fins (Ref. 5578). Upper lobe of caudal fin very long and strap-like, almost equal to length of rest of shark; lower lobe short but strong; terminal lobe very small (Ref. 13570). Dark blue on back and sides, underside white; no white patch over pectoral fin bases (Ref. 5578).

Biologia     Glossário (p.ex. epibenthic)

Primarily an oceanic species but sometimes close inshore (Ref. 247, 5578, 58302); neritic to oceanic, 0-152 m (Ref. 11230). Epipelagic (Ref. 58302). Mesopelagic in the tropics; may enter atoll lagoons (Ref. 37816). Stuns its prey with its tail, presumably feeding on small fishes and cephalopods (Ref. 6871). Ovoviviparous, embryos feeding on yolk sac and other ova produced by the mother (Ref. 43278, 50449). Sometimes caught by ski-boat anglers (Ref. 5578). Utilized for human consumption, liver oil for vitamin extraction, hides for leather, and fins for shark-fin soup (Ref. 13570). A very common catch in the tuna and shark longline, and tuna drift net fisheries (Ref.58048). Maximum and common size of males estimated from discussion in Ref. 247. Adult females may reach at least 330 cm TL (Ref. 47613).

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Exhibit ovoviparity (aplacental viviparity), with embryos feeding on other ova produced by the mother (oophagy) after the yolk sac is absorbed (Ref. 50449, 42326). Usually with at least two young (Ref. 6871). Size at birth about 100 cm (Ref. 6871); 130-160 cm TL (Ref. 58048). Distinct pairing with embrace (Ref. 205).

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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)

Status na Lista Vermelha da UICN (Ref. 130435)

  Em perigo (EN) (A2bd); Date assessed: 06 November 2018

CITES (Ref. 128078)


Ameaça para os humanos

  Harmless (Ref. 13570)




Uso pelos humanos

Pescarias: espécies comerciais; peixe esportivo: sim
FAO(pescarias: produção, perfil da espécie; publication : search) | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 115969): 18.7 - 28.6, mean 26.7 (based on 2246 cells).
Índice de diversidade filogenética (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00411 - 0.02665), b=2.94 (2.72 - 3.16), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  4.5   ±0.66 se; based on food items.
Resiliência (Ref. 120179):  Muito baixo(a), tempo mínimo de duplicação da população maior que 14 anos (Fec=2; tm=7-9; tmax = 29).
Prior r = 0.40, 95% CL = 0.26 - 0.60, Based on 2 full stock assessments.
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (73 of 100).
Categoria de preço (Ref. 80766):   Unknown.