Roundtail paradisefish (Macropodus opercularis) fish species and information / pictures of Roundtail paradisefish - Macropodus opercularis

Roundtail paradisefish (Macropodus opercularis) fish species information

Scientific Name
Macropodus opercularis

Common Name
Roundtail paradisefish

Biology
Dorsal spines (total): 11 - 17; Dorsal soft rays (total): 5-10; Anal spines: 7 - 22; Anal soft rays: 9 - 15; Vertebrae: 27 - 29. Caudal fin forked, both lobes elongate in males (Ref. 559), with filamentous extension in each lobe (Ref. 43281); lower margin of preorbital sharply serrated (Ref. 559); conspicuous dark brown opercular spot with whitish posterior margin (margin red in life); body with 7-11 bold, dark bars on pale yellowish background in preserved specimens (blue bars on reddish background in life); dark stripe crossing eye connecting opercular spot with eye; top of head and predorsal body with dark spots; posterior tip or margin of scales on body not darker than scales (Ref. 42924).

Classification

Classified By
Linnaeus, 1758
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Gouramies (Osphronemidae)

Distribution

Region
Asia
Distribution
Asia: China, from Yangtze basin to the south, on Hainan Island, in Taiwan, north Viet Nam; introduced to the tropical and subtropical world (Ref. 42924). Very popular with aquarists and has been widely transported around the world.
Range
30°N - 20°N, 102°E - 122°E

Environment

Climate
Tropical
Water Temperature From
16 °C
Water Temperature To
26 °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
pelagic
Environment
Freshwater; ; pH range: 6.0 - 8.0; dH range: 5 - 19 pelagic
Trophic Level
3.78 s.e. 0.55 Based on food items.
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
6.7 cm
Common Length
5.5 cm
Phylogenetic Diversity Index
PD50 = 0.5020 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: of no interest; aquarium: commercial
Vulnerability
Low vulnerability (10 of 100)
Resilience
High, minimum population doubling time less than 15 months (tm
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated