Characin (Alestes dentex) fish species and information / pictures of Characin - Alestes dentex

Characin (Alestes dentex) fish species information

Scientific Name
Alestes dentex

Common Name
Characin

Biology
Two subspecies: Alestes dentex dentex in the Nile and Alestes dentex sethente (Valenciennes, 1849) in Sudanian basins of West Africa. Omnivorous, stomachs examined contained seeds, zooplankton, insects or fish fry (Ref. 28714).

Classification

Classified By
Linnaeus, 1758
Class
Ray-finned fishes (Actinopterygii)
Order
Characins (Characiformes)
Family
African tetras (Alestidae)

Distribution

Region
Africa
Distribution
Africa: Chad, Niger, Volta, Gambia, Senegal, Nile, Lake Mobutu Sese Seko, Lake Omo, Lake Turkana. Also known from the White Nile, Murchinson Nile, and Blue Nile, (Ref. 5331).
Range
Unknown

Environment

Climate
Tropical
Water Temperature From
24 °C
Water Temperature To
27 °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
pelagic
Environment
Freshwater; ; pH range: 6.0 - 6.5; dH range: 4 - 18 pelagic; potamodromous (Ref. 51243)
Trophic Level
2.93 s.e. 0.37 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
False

Physical Size and Genetics

Maximum Length
55.0 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5078 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: commercial
Vulnerability
Low to moderate vulnerability (31 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (tmax=7; tm=2; K=0.43-.075)
Threat To Humans
  Harmless
IUCN Red List Status
  Least Concern (LC)