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Megalops atlanticus  Valenciennes, 1847

Tarpon
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Megalops atlanticus   AquaMaps   Data sources: GBIF OBIS
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Image of Megalops atlanticus (Tarpon)
Megalops atlanticus
Picture by Patzner, R.

Classification / Names Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (strålfeniga fiskar) > Elopiformes (Tarpons and tenpounders) > Megalopidae (Tarpons)
Etymology: Megalops: Greek, megas, megalos = great + Greek, ops = appearance (Ref. 45335).   More on author: Valenciennes.

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

; marina; sötvatten; brackvatten revassocierade; amfidrom (Ref. 51243); djupintervall 0 - 30 m (Ref. 3789), usually 0 - 15 m (Ref. 42064).   Subtropical; 49°N - 44°S, 99°W - 14°E (Ref. 55254)

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Atlantic Ocean: from Nova Scotia, Bermuda and southward to Brazil in western Atlantic Ocean (Ref. 3234, 4446), where it it also found throughout the Gulf of Mexico and the Caribbean (Ref. 26938); from Mauritania to Angola in eastern Atlantic Ocean (Ref. 2845, 3234, 4446, 81266); with exceptional records in Portugal, Azores and Atlantic coast of southern France (Ref. 3234, 4446). It had crossed the Panama canal and was also caught at Coiba Island in the Pacific Ocean (Ref. 4446).

Length at first maturity / Size / Vikt / Age

Maturity: Lm 160.0, range 130 - 128.5 cm
Max length : 250 cm TL hane/ej könsbestämd; (Ref. 2683); common length : 130 cm TL hane/ej könsbestämd; (Ref. 2683); publicerad maxvikt: 161.0 kg (Ref. 26340); rapporterad maxålder: 55 år (Ref. 9975)

Short description Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt): 0; Mjukstrålar i ryggfenan (totalt): 13-16; Taggstrålar i analfenan 0; Mjukstrålar i analfenan: 22 - 25; Ryggkotor: 53 - 57. Diagnosis: It is characterized by the anterior position of pelvic fin insertions in relation to dorsal-fin origin, and by some morphometric counts: 13-16 dorsal-fin rays, 40-48 lateral-line scales and 53-57 vertebrae (Ref. 2845, 81266).

Biologi     Ordlista (t.ex. epibenthic)

Inhabit coastal waters, bays, estuaries, mangrove-lined lagoons, and rivers (Ref. 3789, 27188). Often found in river mouths and bays, entering fresh water (Ref. 27227). Large schools may frequent particular spots for years (Ref. 9710). Feed on fishes like sardines, anchovies, Mugilidae, Centropomus, Cichlidae (mainly those forming schools) and crabs (Ref. 3789, 27188). The swim bladder, attached to the esophagus, can be filled directly with air and permits the fish to live in oxygen-poor waters. Has high fecundity, a 203 cm female is estimated to produce over 12 million eggs (Ref. 10863). Spawn in waters which can be temporarily isolated from the open sea (Ref. 27188). Transparent leptocephalus larvae migrate into estuaries (Ref. 57533). Famous for its spectacular leaps when hooked. Marketed fresh or salted (Ref. 3789). Large scales are used in ornamental work and in preparation of artificial pearls (Ref. 3789). Used to be cultured commercially in Colombia (Ref. 7306). Highly appreciated by sport fishers. The flesh is also highly appreciated despite its being bony (Ref. 27188). The world record for hook and line is 283 lbs. from Lake Maricaibo, Venezuela (Ref. 13442).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Some populations may complete life cycle in freshwater, e.g. Lake Nicaragua in Central America, and Deep Lake in Florida (Ref. 4639).

Main reference Upload your references | referenser | Koordinator | Medarbetare

Hureau, J.-C., 1984. Megalopidae. p. 226-227. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the north-eastern Atlantic and Mediterranean. UNESCO, Paris. Vol. 1. (Ref. 3234)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Reports of ciguatera poisoning (Ref. 31172)




Human uses

Fiskeri: kommersiell; Vattenbruk: kommersiell; sportfisk: ja; Akvarium: Offentliga akvarier
FAO(fiskeri: produktion; publication : search) | FishSource | Sea Around Us

Ytterligare information

Populärnamn
synonymer
Metabolik
Predatorer
Ekotoxikologi
Reproduktion
Könsmognad
Lek
Fecundity
Ägg
Egg development
referenser
Vattenbruk
Vattenbruksprofil
Avelslinjer
Genetik
Allelfrekvenser
Ärftlighet
Sjukdomar
Behandling
Mass conversion
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Ljud
Ciguatera
Hastighet
Simsätt
Gälyta
Otoliths
Hjärnstorlek
Syn

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 19.6 - 28, mean 27 (based on 1409 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0020   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00794 (0.00460 - 0.01371), b=2.98 (2.82 - 3.14), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisk nivå (Ref. 69278):  4.5   ±0.0 se; Based on diet studies.
Resiliens (Ref. 69278):  Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.07-0.10; tmax=55; Fec>1 million).
Prior r = 0.2, 2 SD range = 0.07 - 0.57, log(r) = -1.61, SD log(r) = 0.54, Based on: 1 M, 2 K, 3 tgen, 1 tmax, 1 Fec records
Vulnerability (Ref. 59153):  Very high vulnerability (76 of 100) .
Price category (Ref. 80766):   Medium.