Blackfin tilapia (Sarotherodon linnellii) fish species and information / pictures of Blackfin tilapia - Sarotherodon linnellii

Blackfin tilapia (Sarotherodon linnellii) fish species information

Scientific Name
Sarotherodon linnellii

Common Name
Blackfin tilapia

Biology
Dorsal spines (total): 14 - 16; Dorsal soft rays (total): 10-12; Anal spines: 3; Anal soft rays: 8 - 11; Vertebrae: 29. Diagnosis: 15-20 rakers on lower limb of first arch; 30-32 scales in lateral line (Ref. 81260). Body dark grey or green (Ref. 2, 81260). Head large, especially in adults (Ref. 2), its length 37-45% of standard length (Ref. 81260). Jaw teeth very small (Ref. 81260). Breeding males green; intense tilapia-mark present in young until about 10 cm SL, absent above 15 cm SL; as the gonads mature the lower parts of the head and the flanks become more metallic and green; most brooding females silver grey in general color; fins mainly of a neutral color; pelvic fins may be yellow (Ref. 2).

Classification

Classified By
L?nnberg, 1903
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Cichlids (Cichlidae)

Distribution

Region
Africa
Distribution
Africa: endemic to Lake Barombi Mbo, West Cameroon (Ref. 4999, 81260).
Range
5°N - 4°N

Environment

Climate
Tropical
Water Temperature From
24 °C
Water Temperature To
26 °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
demersal
Environment
Freshwater; demersal
Trophic Level
2.57 s.e. 0.26 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
18.5 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5001 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: ; aquaculture: likely future use
Vulnerability
Low to moderate vulnerability (26 of 100)
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Critically Endangered (CR) (B1ab(iii)+2ab(iii))