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> Characiformes (Characins) > Characidae (Characins; tetras) > Stethaprioninae
Etymology: Petitella: French, petit = small, diminituve (Ref. 45335).
More on authors: Géry & Mahnert.

Issue
Ornamental fish.

Environment: milieu / climate zone / depth range / distribution range पारिस्थितिकी

; स्वच्छ जल, अलवण जल बेनथोपिलाजिक; pH range: 5.0 - 6.0; dH range: 5 - 12. Tropical; 23°C - 26°C (Ref. 1672)

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South America: Negro and Meta River basins.

आकार / वज़न / Age

Maturity: L_m ? range ? - ? cm
Max length : 3.6 cm SL पुल्लिंग / अलिंग; (Ref. 38376)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

This species is distinguished from its congeners by the following characters: head with a much more intense and widespread red color, extending up to the humeral region (vs. limited red coloration and not extending to humeral region in georgiae, rhodostoma); horizontal black bar on the end of the caudal peduncle is never prolonged forward (vs. prolonged up to the anal-fin in georgiae, rhodostoma); anal-fin hyaline (vs. a black bar present on the base of the anterior part of the anal-fin, continuing obliquely on the branched rays in georgiae, rhodostoma) (Ref. 127081).

Life cycle and mating behavior Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा

Main reference Upload your references | संदर्भ | संयोजक | सहयोगीयो

Bittencourt, P.S., V.N. Machado, B.g. Marshall, T. Hrbek and I.P. Farias, 2020. Phylogenetic relationships of the neon tetras Paracheirodon spp. (Characiformes: Characidae: Stethaprioninae), including comments on Petitella georgiae and Hemigrammus bleheri. Neotropical Ichthyology 18(2):1-11. (Ref. 127081)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 04 March 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

मात्स्यिकी: व्यापारिक; जलजीवालय: व्यापारिक

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Trophic ecology
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Length-weight rel.
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Life cycle
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इंटरनेट स्रोत

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01202 (0.00548 - 0.02637), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.0 ±0.4 se; based on size and trophs of closest relatives

लौटाव (Ref. 120179): ऊंचा, न्यूनतम जनसंख्या दुगनी समय अवलागत 15 महीने। (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Price category (Ref. 80766): Unknown.

Petitella bleheri (Géry & Mahnert, 1986)