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> Anabantiformes (Gouramies, snakeheads) > Osphronemidae (Gouramies) > Macropodusinae
Etymology: Betta: Malay/Javanese origin. Bleeker (1850, 1858) indicates Ikan Wadder Bettah as the local name of Betta trifasciata Bleeker, 1849 (now Betta picta, Valenciennes, 1846) in the Ambarawa Javanese dialect. Ikan Wader is a common Javanese name for smaller freshwater fishes, especially cyprinids (already used in Old Javanese). See Blust, R. & Trussel, S. Austronesian Comparative Dictionary. Web Edition (https://www.trussel2.com/acd/).
More on authors: Kottelat & Ng.

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

; स्वच्छ जल, अलवण जल बेनथोपिलाजिक. Tropical

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Asia: Banka, Indonesia.

आकार / वज़न / Age

Maturity: L_m ? range ? - ? cm
Max length : 5.9 cm SL पुल्लिंग / अलिंग; (Ref. 12803)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

पृष्ठीय रीढ़ (सम्पूर्ण) : 0 - 1; पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 8 - 9; गुदा कांटा: 2; ऐनल सौफट रेज़: 27 - 28. Differs from Betta hipposideros in the following characters: µ-shaped black throat mark (vs. horseshoe-shaped black mark); absence of both dorsal and caudal transverse bars (vs. presence); fewer subdorsal scales (mode 5-6 vs. 6 1/2). Distinguished from Betta renata in the following characters: µ-shaped black throat mark (vs. kidney-shaped); absence of both dorsal and caudal transverse bars (vs. presence); non-spotted opercle (vs. spotted opercle); opercle with yellow lower margin (vs. black margin); fewer subdorsal scales (mode 5-6 vs. 6 1/2). Can be differentiated from Betta spilotogena in the following characters: µ-shaped black throat mark (vs. black median spot); non-spotted opercles (vs. spotted opercle; and an opercle with yellow lower margin (vs. back margin) (Ref. 56386).

Facultative air-breathing (Ref. 126274); Occurs in a secondary forest area in a pool among leaf litter.

Life cycle and mating behavior परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा

Main reference Upload your references | संदर्भ | संयोजक | सहयोगीयो

Kottelat, M. and P.K.L. Ng, 1994. Diagnoses of five new species of fighting fishes from Banka and Borneo (Teleostei: Belontiidae). Ichthyol. Explor. Freshwat. 5(1):65-78. (Ref. 12803)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Critically Endangered (CR) (B2ab(iii)); Date assessed: 07 January 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

अधिक जानकारी

Trophic ecology
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Food rations
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Ecology
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Population dynamics
Growth parameters
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Length-weight rel.
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Length-frequencies
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Life cycle
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Human related
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Stamps, coins, misc.

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सहयोगीयो

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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=0.01000 (0.00377 - 0.02651), b=2.97 (2.74 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±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).

Betta chloropharynx Kottelat & Ng, 1994