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Characiformes (Characins) >
Characidae (Characins; tetras) > Characinae
Etymology: Charax: Charax, -akos = a fish without identification (Ref. 45335); delimai: Named for Flávio César Thadeu de Lima for his great contributions to the knowledge of neotropical freshwater fishes and for collecting most of the specimens that served as the basis for the species description..
Environment: milieu / climate zone / depth range / distribution range
البيئة
; المياه العذبة قاعية التغذية و المعيشة. Tropical
South America: Rio Tiquié, rio Negro basin in Brazil.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 10.2 cm SL ذكر/ مختلط الجنس; (Ref. 96861); 12.1 cm SL (female)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
الأشعة الظهرية الناعمة (المجموع) : 11; فقرات: 34 - 35. Charax delimai together with C. tectifer, C. metae and some specimens of C. gibbosus, C. rupununi and C. condei are the only members of the genus bearing teeth on the ectopterygoid. It can be distinguished from C. condei in having the lateral line complete (vs. incomplete); from C. gibbosus and C. rupununi in having anal-fin origin on vertical or slightly posterior to dorsal-fin origin (vs. anal-fin origin anterior to the vertical through the dorsal-fin origin); from C. tectifer in having (vs. absence) superficial neuromasts on body, with neuromasts dorso-ventrally arranged on trunk scales except those on the lateral line where neuromasts are absent; and from C. metae in having 3-15 ectopterygoid teeth (vs. 20-50), 10-12 transverse scale rows between the humeral spot and the supracleithrum (vs. 7-9) and the humeral spot distance 48-51% of SL (vs. 41.6-47% of SL) (Ref. 96861).
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
Menezes, N.A. and C.A.S. de Lucena, 2014. A taxonomic review of the species of Charax Scopoli, 1777 (Teleostei: Characidae: Characinae) with description of a new species from the rio Negro bearing superficial neuromasts and on body scales, Amazon bazin, Brazil. Neotrop. Ichthyol. 12(2):193-228. (Ref. 96861)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.8 ±0.6 se; based on size and trophs of closest relatives
المرونه (Ref.
120179): عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
