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Tetragonopterus juruena Silva, Melo, Oliveira & Benine, 2016

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drawing shows typical species in Characidae.

Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

> 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..

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

; Γλυκού νερού Πελαγικό(ά). Tropical

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South America: Brazil.

Μέγεθος / Βάρος / Age

Maturity: Lm ?  range ? - ? cm
Max length : 7.6 cm SL αρσενικό/απροσδιόριστο; (Ref. 124043)

Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία

Μαλακές ραχιαίες ακτίνες (συνολικά) : 9; Μαλακές εδρικές ακτίνες: 24 - 28; Σπόνδυλοι: 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).

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Life cycle and mating behavior Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

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)

IUCN Red List Status (Ref. 130435)

  Not Evaluated 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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Length-weight rel.
Length-length rel.
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Διαδικτυακές πηγές

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = No PD50 data   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.00852 - 0.05619), b=3.00 (2.78 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  3.1   ±0.4 se; based on size and trophs of closest relatives
Ελαστικότητα (Ref. 120179):  Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).