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Characiformes (Characins) >
Characidae (Characins; tetras) > Tetragonopterinae
Etymology: Tetragonopterus: Name from Greek words: 'Tetra' meaning four; 'gonia' meaning angle; 'pteron' for fin; referring to the evident tetragonal shape of the body (Ref. 124043); juruena: Named for Rio Juruena, the type locality; noun in apposition.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
; آب شيرين سطح زی. Tropical
South America: Brazil.
اندازه / وزن / سن
بلوغ: Lm ? range ? - ? cm
Max length : 7.6 cm SL جنس نر / بدون خواص جنسي; (Ref. 124043)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
شعاع نرم باله پشتي (کل) : 9; شعاع نرم باله مخرجي: 24 - 28; مهره ها: 31. This species is distinguished from all its congeners, except T. ommatus, T. kuluene, by the maxillary teeth 4-6 (vs. 1-4); differs from T. ommatus with the dark mark centered on caudal peduncle (vs. a vertically-oriented mark limited to posterior portion of peduncle); differs from T. anostomus, T. denticulatus, T. kuluene by the principal teeth in dentary 4 (vs. 5-6) and by having more robust teeth on the dentary (vs. thinner, sharper teeth); differs from T. anostomus with a terminal mouth (vs. subsuperior mouth); differs from T. anostomus, T. kuluene by the conspicuous humeral marks 2 (vs. 1); differs from T. denticulatus by the number of scale rows between lateral line and dorsal-fin origin 6 (vs. 7); differs from T. anostomus, T. araguaiensis by the number of gill rakers of the first gill arch 7-8 + 10-12) (vs. 10-12 + 17-20); differs from T. argenteus by the predorsal scales 8 (vs. 11-17); differs from T. carvalhoi by having a rounded dark mark on the caudal peduncle (vs. lozenge-shaped) (Ref. 124043).
Cross section: compressed.
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
Silva, G.S.C., B.F. Melo, C. Oliveira and R.C. Benine, 2016. Revision of the South American genus Tetragonopterus Cuvier, 1816 (Teleostei: Characidae) with description of four new species. Zootaxa 4200(1):1-46. (Ref. 124043)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
شاخص تنوع فیلوژنتیکی (مرجع
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02570 (0.01066 - 0.06197), b=2.98 (2.79 - 3.17), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
سطح تروفیک (مرجع
69278): 3.5 ±0.4 se; based on size and trophs of closest relatives
آسیبپذیری ماهیگیری (Ref.
59153): Low vulnerability (10 of 100).
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