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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.
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
समुद्री बैथीपिलाजिक; औशिनोड़िरोमस (Ref. 51243); गहराई सीमा 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).
आकार / वज़न / आयु
परिपक्व अवधि: Lm ?  range ? - ? cm
Max length : 70.0 cm TL पुल्लिंग / अलिंग; (Ref. 4415)
पृष्ठीय रीढ़ (सम्पूर्ण) : 15 - 21; पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 12 - 15; गुदा कांटा: 1; ऐनल सौफट रेज़: 11 - 13; जानवरों की रीड़ का जोड़: 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).
Haedrich, R.L., 1986. Tetragonuridae. p. 851. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4415)
आईयूसीएन रेड लिस्ट स्थिति (Ref. 130435: Version 2025-2 (Global))
मनुष्यों के लिए ख़तरा
Reports of ciguatera poisoning (Ref. 4690)
मानव उपयोग
साधन
विशेष रिपोर्ट
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मॉडल पर आधारित अनुमान
जातिवृति विविधता सूचकांक (संदर्भ 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). |
ट्रॉफिक स्तर (संदर्भ 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. |
लौटाव (संदर्भ 120179) |
निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (K=0.10). |
मछली पकड़ने की भेद्यता (Ref. 59153) |
High to very high vulnerability (66 of 100). 🛈 |
पोषक तत्व (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); |