ການຈັດປະເພດ / ຊື່
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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.
ສະພາບແວດລ້ອມ: ສະພາບແວດລ້ອມ / ເຂດດິນຟ້າອາກາດ / ລະດັບຄວາມເລິກ / ຂອບເຂດການແຈກຢາຍ
ນິເວດວິທະຍາ
; ນ້ຳຈືດ ກ່ຽວກັບ (ຢູ່)ເທິງຊັ້ນພື້ນດິນໃນທະເລເປີດ. Tropical
South America: Brazil.
ຂະໜາດ / ນ້ຳໜັກ / ອາຍຸ
ການຈະເລີນເຕັມໄວ: Lm ?  range ? - ? cm
Max length : 5.3 cm ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 133152)
ຄຳອະທິບາຍສັ້ນໆ
ຕົວທີ່ໃຊ້ໃນການຈຳແນກຊະນິດ | ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…
ຄີຫຼັງຂອງປາ (ຄີອ່ອນ) (ທັງໝົດ) : 8 - 9; ຄີກົ້ນຂອງປາ: 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).
ວົງຈອນຊີວິດ ແລະພຶດຕິກໍາການຫາຄູ່
ການຈະເລີນເຕັມໄວ | ການສືບພັນ | ການວາງໄຂ່ | ໄຂ່ | ຄວາມດົກຂອງໄຂ່ປາ | ຕົວອ່ອນ
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)
ສະຖານະພາບບັນຊີແດງຂອງ IUCN (Ref. 130435: Version 2025-2 (Global))
ໄພຂົ່ມຂູ່ຕໍ່ມະນຸດ
Harmless
ການນໍາໃຊ້ຂອງມະນຸດ
ການປະມົງ: ທີ່ບໍ່ມີຄວາມສົນໃຈ
ເຄື່ອງມື
ບົດລາຍງານພິເສດ
ດາວໂຫລດ XML
ແຫຼ່ງອີນເຕີເນັດ
ການຄາດຄະເນໂດຍອີງໃສ່ແບບຈໍາລອງ
ດັດຊະນີຄວາມຫຼາກຫຼາຍທາງຊີວະພາບ (ເອກະສານອ້າງອີງ 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01023 (0.00450 - 0.02327), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
ຊັ້ນເຂດຮ້ອນ (ເອກະສານອ້າງອີງ 69278) |
3.5 ±0.3 se; based on size and trophs of closest relatives |
ຄວາມສ່ຽງຕໍ່ການຫາປາ (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |