Alopias pelagicus, Pelagic thresher : fisheries, gamefish

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Alopias pelagicus Nakamura, 1935

Pelagic thresher
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Alopias pelagicus   AquaMaps   Data sources: GBIF OBIS
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Alopias pelagicus
Photo de Cox, C.D.

Ecuador country information

Common names: Zorro de mar
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ec.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Béarez, P., 1996
National Database:

Common names from other countries

Renard pélagique, Zorro pelágico, Pelagic thresher shark, ... more

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

Élasmobranches (requins et raies) (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 / profondeur / distribution range Écologie

marin pelagic-oceanic; océanodrome (Ref. 51243); profondeur 0 - 300 m (Ref. 106604), usually 0 - 150 m (Ref. 55167). Tropical; 40°N - 42°S, 16°E - 70°W (Ref. 54277)

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | 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.

Length at first maturity / Taille / Poids / Âge

Maturité: Lm 287.0, range 260 - 292 cm
Max length : 428 cm TL mâle / non sexé; (Ref. 106604); 383.0 cm TL (female); common length : 276 cm TL mâle / non sexé; (Ref. ); âge max. reporté: 29 années (Ref. 48844)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 0; Épines anales: 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).
Body shape (shape guide): fusiform / normal.

Biologie     Glossaire (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).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

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).

Référence principale Upload your references | 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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)

Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-1)

  Menacé (EN) (A2bd); Date assessed: 06 November 2018

CITES

Appendix II: International trade monitored

CMS (Ref. 116361)

Appendix II: Migratory species conserved through agreements

Menace pour l'homme

  Harmless (Ref. 13570)





Utilisations par l'homme

Pêcheries: commercial; pêche sportive: oui
FAO - pêcheries: landings, Résumé espèce; Publication: search | FishSource | Sea Around Us

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E-book | Guide de terrain | Clés d'identification | Générateur de fréquences de longueur | Outil de dynamique de population | Carte par point | Catch-MSY |

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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 - pêcheries: landings, Résumé espèce; 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 | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Réf. 123201): 18.7 - 28.6, mean 26.7 °C (based on 2246 cells).
Phylogenetic diversity index (Réf. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Niveau trophique (Réf. 69278):  4.5   ±0.66 se; based on food items.
Résilience (Réf. 120179):  Très faible, temps minimum de doublement de population supérieur à 14 ans (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). 🛈
Catégorie de prix (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 12.5 [3.6, 65.0] mg/100g; Iron = 0.765 [0.179, 2.248] mg/100g; Protein = 19.9 [17.5, 22.3] %; Omega3 = 0.237 [0.096, 0.582] g/100g; Selenium = 65.4 [16.1, 211.4] μg/100g; VitaminA = 9.66 [3.23, 29.16] μg/100g; Zinc = 0.469 [0.225, 0.893] mg/100g (wet weight);