Klassificering / Namn
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Characiformes (Characins) >
Stevardiidae (Stevardiids) > Diapominae
Etymology: Diapoma: Greek, dis, dia = through + Greek, poma = cover (Ref. 45335); potamohadros: Name 'potamohadros' from the Greek words 'potamo' and 'hadros', meaning 'river' and 'big or bigger', in reference to Iguaçu River (Ref. 138957).
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bentopelagisk. Tropical
South America: Brazil.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 6.2 cm SL hane/ej könsbestämd; (Ref. 138957)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 8; Mjukstrålar i analfenan: 20 - 26. This species is distinguished from its congeners by the following set of characters: discontinuous perforation of lateral line scales; an unpigmented adipose fin; modified scales in the caudal fin absent; posterior elongation of opercular bones absent; distal border of the anal fin concave in males; number of scales forming the anal-fin sheath (5-12); number of branched anal-fin rays (20-26); body depth (27.6-31.9% SL); five or more cusps on the teeth in the inner series of premaxilla; longitudinal black stripe extending posteriorly on the middle caudal-fin rays; and conspicuous black blotch on the caudal-fin base absent (Ref. 138957).
Body shape (shape guide): fusiform / normal.
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Ito, P.M.M., T.P. Carvalho, C.S. Pavanelli, J.A. Vanegas-Ríos and L.R. Malabarba, 2022. Phylogenetic relationships and description of two new species of Diapoma (Characidae: Stevardiinae) from the La Plata River basin. Neotrop. Ichthyol. 20(1):e210115. (Ref. 138957)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
Trofisk nivå (Ref. 69278) |
2.7 ±0.3 se; based on size and trophs of closest relatives |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |