Brazilian dartfish (Ptereleotris randalli) fish species and information / pictures of Brazilian dartfish - Ptereleotris randalli

Brazilian dartfish (Ptereleotris randalli) fish species information

Scientific Name
Ptereleotris randalli

Common Name
Brazilian dartfish

Biology
Dorsal spines (total): 7; Dorsal soft rays (total): 22-24; Anal spines: 1; Anal soft rays: 21 - 23. This species is distinguished from its Atlantic congeners by having the following characters: dorsal and anal fins with bright orange-yellow submarginal bands; second dorsal and anal fins comparatively low, slightly elevated anteriorly; short caudal fin, 5ht and 6th rays prolonged as filaments; short pelvic fins, about the same length as pectorals (Ref. 84213).

Classification

Classified By
Gasparini, Rocha & Floeter, 2001
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Dartfishes (Ptereleotridae)

Distribution

Region
Southwest Atlantic
Distribution
Southwest Atlantic: endemic to Brazil.
Range
Unknown

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
8 m
Depth To - meters
60 m
Zone
reef-associated
Environment
Marine; reef-associated; depth range 8 - 60 m (Ref. 84213)
Trophic Level
3.36 s.e. 0.44 Based on size and trophs of closest relatives
Occurs in Marine / Salt water
True
Occurs in Brackish water
False
Occurs in Fresh Water
False
Occurs on Reefs
True
Is kept in Aquariums
True

Physical Size and Genetics

Maximum Length
8.7 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
Unknown
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated