Dusky betta (Betta fusca) fish species and information / pictures of Dusky betta - Betta fusca

Dusky betta (Betta fusca) fish species information

Scientific Name
Betta fusca

Common Name
Dusky betta

Biology
Dorsal spines (total): 0 - 2; Dorsal soft rays (total): 7-8; Anal spines: 0 - 1; Anal soft rays: 23 - 25; Vertebrae: 29 - 30. Head length 33.2-33.8% SL; anal fin rays 24-25; lateral scales 29; body depth 30.9-31.7% SL; predorsal length 68.5-70.2% SL; preanal length 49.0-50.3% SL; and body length 70.4-70.8% SL (Ref. 56386).

Classification

Classified By
Regan, 1910
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Gouramies (Osphronemidae)

Distribution

Region
Asia
Distribution
Asia: Sumatra, Indonesia.
Range
Unknown

Environment

Climate
Tropical
Water Temperature From
22 °C
Water Temperature To
26 °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
benthopelagic
Environment
Freshwater; ; pH range: 5.5 - 7.0; dH range: ? - 12 benthopelagic
Trophic Level
3.25 s.e. 0.42 Based on size and trophs of closest relatives
Occurs in Marine / Salt water
False
Occurs in Brackish water
False
Occurs in Fresh Water
True
Occurs on Reefs
False
Is kept in Aquariums
True

Physical Size and Genetics

Maximum Length
8.2 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Aquarium: commercial
Vulnerability
Low vulnerability (10 of 100)
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated