Classification / Names
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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/); midas: The specific epithet is an allusion to the Greek Midas, a mythical king whose touch turned everything to gold, arising from the iridescent gold opercle and body scales. A noun in apposition.
Eponymy: In Greek mythology, Midas was a king of Phrygia whose touch could turn anything to gold (a gift from the gods which had to be renounced once the impracticalities sunk in). The fish are named after him because of their golden coloration. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού βενθοπελαγικό; pH range: 4.1 - ?; εύρος βάθους 0 - 2 m (Ref. 81926). Tropical
Asia: lower Kapuas basin in west Kalimantan, Indonesia; possibly Sambas river basin; and extreme western part of Sarawak, in heathforest streams near the town of Lundu.
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 6.6 cm SL αρσενικό/απροσδιόριστο; (Ref. 81926)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 1; Μαλακές ραχιαίες ακτίνες (συνολικά) : 8 - 10; Εδρικές άκανθες: 1 - 2; Μαλακές εδρικές ακτίνες: 25 - 29; Σπόνδυλοι: 31 - 32. Can be distinguished in possessing the following combination of characters: relatively thick-set body (body depth 24.3-29.0 % SL); head devoid of pattern except for black stripe that runs from black lower lip, through eye to edge of opercle; opercle with gold iridescent scales when live; belly and body with gold iridescent scales; some median caudal rays projecting beyond fin margin (Ref. 81926).
Facultative air-breathing (Ref. 126274); A paratype series was collected from a blackwater river running through remnant and intact peat swamp forest, with pH 4.1(Ref. 81926).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Tan, H.H., 2009. Redescription of Betta anabatoides Bleeker; and a new species of Betta from West Kalimantan, Borneo (Teleostei: Osphronemidae). Zootaxa 2165:59-68. (Ref. 81926)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 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).
Τροφικό Επίπεδο (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
