Tetrapturus georgii, Roundscale spearfish

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Tetrapturus georgii Lowe, 1841

Roundscale spearfish
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Tetrapturus georgii   AquaMaps   Data sources: GBIF OBIS
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Image of Tetrapturus georgii (Roundscale spearfish)
Tetrapturus georgii
foto/gambar oleh FAO

klasifikasi / Names Nama-nama umum | Sinonim (persamaan) | Catalog of Fishes(Marga, Jenis) | ITIS | CoL | WoRMS | Cloffa

> 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.

Environment: milieu / climate zone / kisaran kedalaman / distribution range Ekologi

laut pelagic-oceanic; oceanodromus (Ref. 51243); kisaran kedalaman 0 - 200 m (Ref. 43). Subtropical; 42°N - 29°S, 98°W - 18°E (Ref. 43)

Penyebaran Negara-negara | Daerah-daerah FAO | Ecosystems | Kemunculan | peta titik | Introduksi | Faunafri

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.

Size / Weight / umur

Kematangan: Lm ?  range ? - ? cm
Max length : 184 cm FL jantan/; (Ref. 43); 181.0 cm FL (female); Berat maksimum terpublikasi: 21.5 kg (Ref. 43); Berat maksimum terpublikasi: 21.5 kg

Biologi     Daftar kata (contoh epibenthic)

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).

Life cycle and mating behavior Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva

rujukan utama Upload your references | Acuan | Koordinator | mitra

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 IUCN Red List (Ref. 130435: Version 2025-1)

  kekurangan data (DD) ; Date assessed: 15 November 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

  Harmless





penggunaan manusia

FAO - Publication: search | FishSource |

informasi lanjut

Trophic ecology
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Length-weight rel.
Length-length rel.
ukuran frekuensi
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pemulihan
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Alat, peralatan

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Sumber internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | semak peneliti ikan | CISTI | Catalog of Fishes: Marga, Jenis | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | Pangkalan data nasional | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: pergi, Cari | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Acuan 123201): 14.3 - 19.1, mean 17.1 °C (based on 37 cells).
Phylogenetic diversity index (Acuan 82804):  PD50 = 0.5630   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00195 - 0.01025), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Acuan 69278):  4.3   ±0.4 se; based on size and trophs of closest relatives
Daya lenting (Acuan 120179):  Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100). 🛈