Blackline penguinfish (Thayeria boehlkei) fish species and information / pictures of Blackline penguinfish - Thayeria boehlkei

Blackline penguinfish (Thayeria boehlkei) fish species information

Scientific Name
Thayeria boehlkei

Common Name
Blackline penguinfish

Biology
Feeds on worms, small insects and crustaceans. In the tank, female lays a large number of eggs, which hatch in about 20 to 24 hours (Ref. 7020). Maximum length reported to reach 6 cm TL (Ref. 7020). Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 60 cm (Ref. 51539).

Classification

Classified By
Weitzman, 1957
Class
Ray-finned fishes (Actinopterygii)
Order
Characins (Characiformes)
Family
Characins (Characidae)

Distribution

Region
South America
Distribution
South America: upper Amazon River basin in Peru and Araguaia River in Brazil.
Range
Unknown

Environment

Climate
Tropical
Water Temperature From
22 °C
Water Temperature To
28 °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
3.3 s.e. 0.41 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
3.2 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.6250 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