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/).; pallida: From the Latin word 'pallidus', meaning pale or colorless, compared to some of its congeners which are more colorful..
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; Γλυκού νερού Πελαγικό(ά). Tropical
Asia: Thailand.
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 3.4 cm SL αρσενικό/απροσδιόριστο; (Ref. 54318); 3.3 cm SL (female)
Short description
Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 1; Μαλακές ραχιαίες ακτίνες (συνολικά) : 8 - 9; Εδρικές άκανθες: 2; Μαλακές εδρικές ακτίνες: 24 - 25. Diagnosis: Caudal fin of males lanceolate, body with an uninterrupted dark central lateral stripe, dorsal and ventral margins clearly defined, distinct caudal spot lacking, the lower lateral stripe is posteriorly disrupted into wide-spaced small blotches (Ref. 54318).
Facultative air-breathing (Ref. 126274); Specimens were collected in February 2005 in a slowly flowing creek which was only 20 to 50 cm deep; the water was clear and slightly tanned, bed covered densely with leaf litter; water
data pH 6.3, 82 µS/cm and 25.5°C. From another creek, where the species was collected, pH 6.5, 69 µS/cm and 26.6 °C (Ref. 78499).
Life cycle and mating behavior
Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες
Schindler, I. and J. Schmidt, 2004. Betta pallida spec. nov. , a new fighting fish from southern Thailand (Teleostei: Belontiidae). Zeitschrift für Fischkunde 7(1):1-4. (Ref. 54318)
IUCN Red List Status (Ref. 130435)
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 (0.00376 - 0.02663), b=2.97 (2.75 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Ελαστικότητα (Ref.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
