Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> 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/).; omega: Name from Greek 'omega', i.e., alluding to the peculiar throat pattern and referring to the last members of this species in the disappearing black water habitat type; noun in apposition (Ref. 127779).

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

; süßwasser; brackwasser benthopelagisch. Tropical

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Eastern Indian Ocean: Malaysia.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 8.1 cm SL Männchen/unbestimmt; (Ref. 127779)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

This species is distinguished from its congeners by the following set of characters: black markings on lower jaw that are continuous with two black downward curved bars on the anterior throat, ending with rounded bulging ends near edge of lower jaw resembling a distinct omega (?) pattern; opercle uniform brown with light dark brown mottling, operculum without lower distal margin black; black transverse bars on the dorsal and caudal fin interradial membranes; absence of a dark distal border on anal fin (Ref. 127779).

This species is currently recorded only from the remnant black water swamps in Johor, Malaysia. Maximum length based on type specimen, to be replaced with a better reference (Ref. 127779).

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

Tan, H.H. and A.B. Ahmad, 2018. Betta omega, a new species of black water fighting fish (Teleostei: Osphronemidae) from Malaysia. Raffles Bull. Zool. 66:402-407. (Ref. 127779)

IUCN Rote Liste Status (Ref. 130435)

vom Aussterben bedroht (CR) (B2ab(iii,v)); Date assessed: 01 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

FAO - Publication: search | FishSource |

Mehr Information

Trophic ecology
Nahrungsorganismen
Diet compositions
Food consumptions
Food rations
Räuber

Ecology
Ökologie

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Längenhäufigkeiten
Mass conversions
Recruitments
Abundances

Life cycle
Fortpflanzung
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larven
Larven Pop.Dyn.

Distribution
Länder
FAO Gebiete
Ecosystems
Vorkommen
Einführungen
BRUVS - Videos

Anatomy
Gill areas
Gehirngröße
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fisch Laute
Diseases / Parasites
Toxicities (LC50s)

Genetics
Genetik
Electrophoreses
Heritabilities

Human related
Aquaculture systems
Aquakultur Profile
Zuchtlinien
Ciguatera cases
Stamps, coins, misc.

Outreach
Partner

Taxonomy
Namen
Synonyme
Morphologie
Morphometrie
Bilder

References
Referenzen

Tools

Zusatzinformationen

Aquarium Hälterung suchen | Art Datenblatt suchen | Aquakultur Datenblatt suchen

Download XML

Zusammenfassung | Point data | Namen | Photos

Internet Quellen

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.4 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).

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

Back to Search

Random Species

Betta omega Tan & Ahmad, 2018