>
Characiformes (Characins) >
Crenuchidae (South American darters) > Characidiinae
Etymology: Characidium: Diminutive of Charax, -akos = a fish without identification (Ref. 45335); itarare: Name 'itarare' from the tupi word meaning 'stone carved by the water', in allusion to the underground rivers in the region. Also in reference to the type locality of the species, Rio Itararé basin. Noun in apposition.
Environment: milieu / climate zone / نطاق العمق / distribution range
البيئة
; المياه العذبة قاعية التغذية و المعيشة. Tropical
South America: Brazil.
الحجم / وزن / العمر
النضج: Lm ? range ? - ? cm
Max length : 5.3 cm ذكر/ مختلط الجنس; (Ref. 133152)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
الأشعة الظهرية الناعمة (المجموع) : 8 - 9; أشعه شرجية لينه: 6. This species is distinguished from its congeners by the following set of characters: scaled isthmus; secondary bars absent; dark-brown, vertically elongated middorsal blotches that lack pigmentation in their central region, appearing diamond-like (larger specimens) and diamond-like blotches, vertically elongated and fully pigmented (smaller specimens); black chromatophores in caudal fin; roundish black marks on the pelvic absent, dorsal and anal fins; tricuspid dentary teeth present; peduncular blotch absent; white gap between posterior edge of the opercle and the humeral blotch absent; longitudinal stripe in the mid-lateral region of body ending in peduncle caudal; pre-orbital stripe present; area between pelvic fin and origin of anal fin straight in lateral view (Ref. 133152).
Body shape (shape guide): elongated; Cross section: compressed.
This species is found in steams with clear water and substrate composed of sand and small pebbles (Ref. 133152).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Stabile, B.H.M., R.B. dos Reis, A. Frota, W.J. da Graça and A.V. de Oliveira, 2024. Morphology and molecular evidence of a new species of Characidium (Characiformes: Crenuchidae) from the edges of a protected area at Rio Itararé, upper Rio Paraná, southern Brazil. J Fish Biol. 105:1850-1861. (Ref. 133152)
IUCN Red List Status (Ref. 130435: Version 2025-1)
استخدامات بشرية
مصائد: غير ذات اهمية
أدوات
تقارير خاصة
Download XML
مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (مرجع
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
مستوى غذائي (مرجع
69278): 3.5 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
🛈
