Persian blackspot threadfin (Polydactylus persicus) fish species and information / pictures of Persian blackspot threadfin - Polydactylus persicus

Persian blackspot threadfin (Polydactylus persicus) fish species information

Scientific Name
Polydactylus persicus

Common Name
Persian blackspot threadfin

Biology
Dorsal spines (total): 9; Dorsal soft rays (total): 12-13; Anal spines: 3; Anal soft rays: 12; Vertebrae: 24. With 6 pectoral filaments; uppermost extending well beyond posterior tip of pectoral fin. Pectoral fin, rays short, 18-20% of SL; fin base short , 10-11% of SL; all rays branched except uppermost 1 or 2. Second dorsal spine long, 6-9% of SL. Well-developed swim bladder. A large black spot anteriorly on lateral line (Ref. 40958).

Classification

Classified By
Motomura & Iwatsuki, 2001
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Threadfins (Polynemidae)

Distribution

Region
Western Indian Ocean
Distribution
Western Indian Ocean: Persian Gulf.
Range
31°N - 23°N, 47°E - 57°E

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
10 m
Zone
demersal
Environment
Marine; demersal; depth range ? - 10 m (Ref. 57343)
Trophic Level
3.49 s.e. 0.59 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
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
16.0 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
Fisheries: commercial
Vulnerability
Low vulnerability (12 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