klasifikasi / Nama
Nama-nama umum | Sinonim (persamaan) | Catalog of Fishes(Marga, Jenis) | ITIS | CoL | WoRMS | Cloffa
>
Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Tyttobryconinae
Etymology: Priocharax: Greek, prio = to saw + Greek, charax, -akos = a fish without identification (Ref. 45335); varii: Named for the late Richard P. Vari, one of the most infuential researchers in Neotropical ichthyology of the past 40 years; noun in genitive.
Eponymy: Dr Richard Peter Vari (1949–2016) was a curator of fish at the Smithsonian. [...] (Ref. 128868), visit book page.
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
; air tawar bentopelagis. Tropical
South America: Brazil.
Ukuran / Berat / umur
Kematangan: Lm ?  range ? - ? cm
Max length : 1.4 cm SL jantan/; (Ref. 128819)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
duri punggung lunak (Keseluruhan (total)) : 9; Sirip dubur lunak: 18 - 25; vertebrata, bertulang belakang: 33. This species is distinguished from its congeners by the presence of an adipose fin (vs. absence); differs further from P. ariel and P. pygmaeus by the pelvic-fin rays i,6 with i,5 rare (vs. i,5); postcleithra 2 present (vs absent); differs further from P. ariel by having a shorter caudal peduncle 14-18 % SL (vs. 18- 24 % SL) (Ref. 128819).
Cross section: compressed.
Specimens were collected between 14:00 and 17:00 in a small tributary of the Rio Jamari, close to a bush of submerged macrophytes in a slow flowing part of the Rio Preto, approximately 200 m above rapids. It was collected with Apistogramma resticulosa, Axelrodia lindeae, Axelrodia stigmatias, Hemigrammus bellottii, Hyphessobrycon aff. sweglesi, Leporinus sp., Nannostomus trifasciatus, Odontocharacidium aphanes and Satanoperca sp. Three of these species are considered miniature: the characids Axelrodia lindeae, A. stigmatias and the crenuchid Odontocharacidium aphanes. This species and the three miniatures are mostly transparent, and with the larger Hemigrammus bellottii which has a predominantly translucent body in life, an ‘almost invisible league’ for the Rio Negro was proposed by Carvalho et al., 2006 (Ref. 128847 in Ref. 128819).
Siklus hidup dan perilaku kawin
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fekunditas | Larva
Mattox, G.M.T., C.S. Souza, M. Toledo-Piza, R. Britz and C. Oliveira, 2020. A new miniature species of Priocharax (Teleostei: Characiformes: Characidae) from the Rio Madeira drainage, Brazil, with comments on the adipose fin in characiforms. Vertebrate Zoology 70(3):417-433. (Ref. 128819)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: tidak ada kepentingan
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimasi berdasarkan model
Indeks keanekaragaman filogenetik (Acuan 82804) |
PD50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
Tingkat Trofik (Acuan 69278) |
3.0 ±0.4 se; based on size and trophs of closest relatives |
Daya lenting (Acuan 120179) |
Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Preliminary K or Fecundity.). |
Kerentanan Penangkapan Ikan (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |