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Carangiformes (Jacks) >
Istiophoridae (Billfishes)
Etymology: Tetrapturus: Greek, tetra = four + Greek, pteron, fin, wing (Ref. 45335).
Eponymy: George Butler Leacock supplied Lowe with the spearfish holotype and “…rendered valuable assistance to the cause of ichthyology of this island [Madeira]… …generally as well as in this instance. [...] (Ref. 128868), visit book page.
More on author: Lowe.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina pelagic-oceanic; havsvandrande (Ref. 71039); djupintervall 0 - 200 m (Ref. 43). Subtropical; 42°N - 29°S, 98°W - 18°E (Ref. 43)
Eastern Atlantic and Mediterranean Sea: Positively known only from Madeira, Sicily (Italy), Strait of Gibraltar, and the adjacent Atlantic Ocean off southern Portugal. Can be expected to range widely in the eastern and perhaps central North Atlantic. Central and eastern Atlantic records from Japanese longliner's data need clarification. Highly migratory species.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 184 cm FL hane/ej könsbestämd; (Ref. 43); 181.0 cm FL (female); publicerad maxvikt: 21.5 kg (Ref. 43); publicerad maxvikt: 21.5 kg
Further study is strongly needed to clarify the validity of this species. Probably oceanic. Length has been transferred from 'Body length' to FL (* 0.15).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Nakamura, I., 1985. FAO species catalogue. Vol. 5. Billfishes of the world. An annotated and illustrated catalogue of marlins, sailfishes, spearfishes and swordfishes known to date. FAO Fish. Synop. 125(5):65p. Rome: FAO. (Ref. 43)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Verktyg
Särskilda rapporter
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5630 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00447 (0.00193 - 0.01034), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
4.3 ±0.4 se; based on size and trophs of closest relatives |
Resiliens (Ref. 120179) |
Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Moderate vulnerability (44 of 100). 🛈 |