>
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.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser bathypelagisch; ozeanodrom (Ref. 51243); tiefenbereich 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).
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 70.0 cm TL Männchen/unbestimmt; (Ref. 4415)
Rückenflossenstacheln (insgesamt) : 15 - 21; Rückenflossenweichstrahlen (insgesamt) : 12 - 15; Afterflossenstacheln: 1; Afterflossenweichstrahlen: 11 - 13; Wirbelzahl: 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).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Haedrich, R.L., 1986. Tetragonuridae. p. 851. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4415)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Reports of ciguatera poisoning (Ref. 4690)
Nutzung durch Menschen
Tools
Zusatzinformationen
Download XML
Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (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). |
Trophische Ebene (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. |
Widerstandsfähigkeit (Ref. 120179) |
niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (K=0.10). |
Anfälligkeit der Fischerei (Ref. 59153) |
High to very high vulnerability (66 of 100). 🛈 |
Nährstoffe (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); |