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> Characiformes (Characins) > Alestidae (African tetras)
Etymology: Arnoldichthys: Because of Johann Pane Arnold, born in Germany, 1869-1952 (Ref. 45335).
More on author: Boulenger.

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

; स्वच्छ जल, अलवण जल पिलाजिक; pH range: 6.0 - 8.0; dH range: 5 - 19. Tropical; 23°C - 28°C (Ref. 1672)

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Africa: lower Niger and Ogun rivers in Nigeria (Ref. 2880, 81279).

आकार / वज़न / Age

Maturity: L_m ? range ? - ? cm
Max length : 9.6 cm SL पुल्लिंग / अलिंग; (Ref. 2880)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

गुदा कांटा: 0; ऐनल सौफट रेज़: 14. Diagnosis: scales distinctly larger above than below lateral-line; 8 teeth in outer tooth row of upper jaw; parietal fontanel absent (Ref. 2880, 81279).

Feeds on worms, insects and crustaceans. In aquaria, female lays up to 1000 eggs, after vigorous driving by the male, which hatch in 30 to 34 hours (Ref. 7020). Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 100 cm (Ref. 51150).

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

Main reference Upload your references | संदर्भ | संयोजक | सहयोगीयो

Paugy, D., 1990. Characidae. p. 195-236. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest. Tome I. Coll. Faune Tropicale n° XXVIII. Musée Royal de l'Afrique Centrale, Tervuren et O.R.S.T.O.M., Paris, 384 p. (Ref. 2880)

IUCN Red List Status (Ref. 130435)

Endangered (EN) (B2ab(i,ii,iii)); Date assessed: 12 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

मात्स्यिकी: व्यापारिक; जलजीवालय: व्यापारिक

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अधिक जानकारी

Trophic ecology
खाद्य पदार्थ
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परभक्षी

Ecology
पारिस्थितिकी

Population dynamics
Growths
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Length-weight rel.
Length-length rel.
Length-frequencies
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Recruitments
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Life cycle
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Distribution
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Genetics
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Human related
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जलीयकृषि रूपरेखाऐ
खींच
Ciguatera cases
Stamps, coins, misc.

Outreach
सहयोगीयो

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इंटरनेट स्रोत

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01148 (0.00528 - 0.02495), b=3.00 (2.82 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.32 se; based on food items.

लौटाव (Ref. 120179): माध्यम, न्यूनतम जनसंख्या दुगनी होने का समय 1.4 - 4.4 वर्ष। (Fec=1000).

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

Price category (Ref. 80766): Unknown.

Arnoldichthys spilopterus (Boulenger, 1909)