Klassificering / Namn
Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Rivulinae
Etymology: terena: Name 'terena' from the ethnic group in the type locality of the species, Terena.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bentopelagisk. Tropical
South America: Brazil.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 2.8 cm SL hane/ej könsbestämd; (Ref. 133473)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 9 - 10; Mjukstrålar i analfenan: 14 - 16; Ryggkotor: 30 - 31. This species is distinguished by the following set of characters: distal margin of the unpaired fins and pelvic-fin orangish-red in males; distinctive dark marks on the humeral region absent; scales in the transversal series 10-11; pectoral fin rays 13; pelvic-fin length 10.3-11.6% SL; head length 27.8-30.5% SL; head width in females 75.0-80.6%; caudal-fin length in males 29.9-33.6% and 30.6-32.1% SL in females; red oblique bars in the caudal fin in males present; eye diameter 28.8-32.3% HL; body depth 22.0-23.1% SL; pre-pelvic length 52.8-55.7% SL (Ref. 133473).
Body shape (shape guide): elongated; Cross section: oval.
The species inhabits stream bank and adjacent shallow pools, with clear, still water, over muddy and clay substrates. It is present in both sunlit areas and those shaded by vegetation, particularly by buriti palms (Mauritia flexuosa) (Ref. 133473).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Volcan, M.V., F. Severo-Neto and L.E.K. Lanés, 2024. A new species of Melanorivulus (Cyprinodontiformes: Rivulidae) from headwaters of the Taquari River basin, Paraguay River basin, central Brazilian Cerrado. Journal of Natural History 58(37-40):1493-1508. (Ref. 133473)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: saknar intresse
Verktyg
Särskilda rapporter
Ladda ner XML
Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 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=0.00661 (0.00312 - 0.01398), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
Resiliens (Ref. 120179) |
Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |