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Tetragonurus cuvieri Risso, 1810

Smalleye squaretail
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Tetragonurus cuvieri   AquaMaps   Data sources: GBIF OBIS
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Image of Tetragonurus cuvieri (Smalleye squaretail)
Tetragonurus cuvieri
Picture by Cruscanti, M.

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Scombriformes (Mackerels) > Tetragonuridae (Squaretails)
Etymology: Tetragonurus: Greek, tetra = four + Greek, gonia = angle + Greek, oura = tail (Ref. 45335);  cuvieri: Named after G.C.L.D. Cuvier 1769-1832, a founder of modern ichthyology (Ref. 6885).
More on author: Risso.

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

marien bathypelagisch; oceanodroom (Ref. 51243); diepte 1 - 800 m (Ref. 10823). Deep-water

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Eastern Pacific: Aleutian Islands, Alaska to Baja California, Mexico; Chile (Ref. 9068). Western Pacific: Japan (Ref. 559), New Zealand and Australia (Ref. 6885). Western Indian Ocean: Natal, South Africa (Ref. 4415). Atlantic Ocean, including the Mediterranean (Ref. 4415).

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 70.0 cm TL mannelijk / geslacht onbekend; (Ref. 4415)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 15 - 21; Dorsale zachte stralen (totaal) : 12 - 15; Anale stekels: 1; Anale zachte stralen: 11 - 13; Wervels: 52. Pectorals and pelvic fins small (Ref. 6885). Dark brown, paler at base of tail and on head, otherwise almost uniform throughout (Ref. 6885).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Oceanic, usually near surface; possibly near bottom. Perhaps occurs in schools. Young usually among jellyfishes or inside large salps. Feeds on jellyfishes and salps (Ref. 2850), also other soft-bodied coelenterates, ctenophores, as well as plankton. There are conflicting reports that the flesh of this species is poisonous (Ref. 11149).

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

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Haedrich, R.L., 1986. Tetragonuridae. p. 851. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4415)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Niet bedreigd (LC) ; Date assessed: 19 May 2013

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Reports of ciguatera poisoning (Ref. 4690)





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Estimates based on models

Preferred temperature (Ref. 123201): 5.6 - 17.9, mean 10.1 °C (based on 809 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.8   ±0.35 se; based on food items.
Generation time: 11.0 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (K=0.10).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (66 of 100).
Nutrients (Ref. 124155):  Calcium = 22.1 [8.1, 49.5] mg/100g; Iron = 0.298 [0.130, 0.826] mg/100g; Protein = 18 [17, 19] %; Omega3 = 0.113 [0.044, 0.280] g/100g; Selenium = 17.9 [6.2, 47.0] μg/100g; VitaminA = 33 [4, 264] μg/100g; Zinc = 0.487 [0.266, 0.950] mg/100g (wet weight);