Betta imbellis, Crescent betta : aquarium

Betta imbellis Ladiges 1975

Crescent betta
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Betta imbellis
Picture by Terceira, A.C.

Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

> Anabantiformes (Gouramies, snakeheads) > Osphronemidae (Gouramies) > Macropodusinae
Etymology: Betta: Siamese local name of the fish "ikan bettah".

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

; zoetwater benthopelagisch; pH range: 6.0 - 7.0; dH range: 5 - 19.   Tropical; 24°C - 28°C (Ref. 1672)

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Asia: Thailand, Malaysia, Singapore and Indonesia.

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 6.0 cm SL mannelijk/geslacht niet bekend; (Ref. 57235)

Korte beschrijving Morfologie | Morfometrie

Diagnosed by having the following combination of characters: A bright red crescent on distal edge of caudal fin; absence of caudal transverse bars; dorsal transverse bars on distal two-thirds of dorsal fin; iridescent blue opercle scales; body dark brown to black; lateral scales 30-32; body depth 24.2-30.1% SL; dorsal-fin origin above lateral scales 15-17 (mode 16); length of dorsal-fin fin base 12.9-18.9% SL; and height of pectoral-fin origin 14.8-18.9% SL (Ref. 56613).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Occurs usually in stagnant pools and ditches in clear to brown water (Ref. 56613). Found also in lowland swamps and paddy field. Bubble nest builder species (Ref. 57235). Eggs shrink to the bottom and were then collected by one or both parents and were embedded among the foam bubbles in the nest (Ref. 41595).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Eggs shrink to the bottom and were then collected by one or both parents and were embedded among the foam bubbles in the nest (Ref. 41595).

Voornaamste referentie Upload your references | Referenties | Coördinator | Medewerkers

Kottelat, M., A.J. Whitten, S.N. Kartikasari and S. Wirjoatmodjo, 1993. Freshwater fishes of Western Indonesia and Sulawesi. Periplus Editions, Hong Kong. 221 p. (Ref. 7050)

Status op de Rode Lijst van het IUCN (Ref. 123251)

  Niet bedreigd (LC) ; Date assessed: 05 January 2019

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | Websites from users | Bekijk FishWatcher gegevens | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishipedia | Fishtrace | GenBank(genoom, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | Publieke aquaria | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia(ga naar, zoek) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.2   ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Kwetsbaarheid (Ref. 59153):  Low vulnerability (10 of 100) .