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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).
Eponymy: Georges Léopold Chrétien Frédéric Dagobert Baron Cuvier (1769–1832), better known by his pen name Georges Cuvier, was a French naturalist and one of the scientific giants of his age. [...] (Ref. 128868), visit book page.
More on author: Risso.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin bathypélagique; océanodrome (Ref. 51243); profondeur 1 - 800 m (Ref. 10823). Deep-water
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).
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 70.0 cm TL mâle / non sexé; (Ref. 4415)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 15 - 21; Rayons mous dorsaux (Total) : 12 - 15; Épines anales: 1; Rayons mous anaux: 11 - 13; Vertèbres: 52. Pectorals and pelvic fins small (Ref. 6885). Dark brown, paler at base of tail and on head, otherwise almost uniform throughout (Ref. 6885).
Body shape (shape guide): elongated.
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).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Haedrich, R.L., 1986. Tetragonuridae. p. 851. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4415)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Reports of ciguatera poisoning (Ref. 4690)
Utilisations par l'homme
Outils
Articles particuliers
Télécharger en XML
Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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). |
Niveau trophique (Réf. 69278) |
3.8 ±0.35 se; based on food items. |
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Generation time |
11.0 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Résilience (Réf. 120179) |
Faible, temps minimum de doublement de population : 4,5 à 14 années (K=0.10). |
Vulnérabilité de la pêche (Ref. 59153) |
High to very high vulnerability (66 of 100). 🛈 |
Nutriments (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); |