Saddleback silver-biddy (Gerres limbatus) fish species and information / pictures of Saddleback silver-biddy - Gerres limbatus

Saddleback silver-biddy (Gerres limbatus) fish species information

Scientific Name
Gerres limbatus

Common Name
Saddleback silver-biddy

Biology
Dorsal spines (total): 9; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 7. Scales between 5th dorsal fin spine base and lateral line 2.5-3 (usually 2.5). Second anal fin spine more robust than 3rd. Premaxillary groove without scales. Posterior margin of maxilla beyond a vertical through anterior margin of inner dermal eye opening. Diffused dark saddle patches along the back of live specimens 4 or 5: 1st saddle on nape; 2nd under second to 6th or 7th dorsal fin spine; 3rd beneath anterior soft part of dorsal fin; 4th beneath posterior soft part of dorsal fin; 5th on 1/3 upper caudal peduncle (or extending onto upper caudal peduncle or absent). Dorsal fin faint yellowish, with a dark patch on tip of spinous portion above a line running from middle of second dorsal spine to tip of 6th dorsal spine (rarely broader or otherwise indistinct with growth). Caudal fin pale yellow (often with a dusky trailing edge). Anal fin with anterior half yellow or dull

Classification

Classified By
Cuvier, 1830
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Mojarras (Gerreidae)

Distribution

Region
Indo-West Pacific
Distribution
Indo-West Pacific: India and Sri Lanka to southeast Asia and the South China Sea. Reported in Iran (86648).
Range
Unknown

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
demersal
Environment
Marine; freshwater; brackish; demersal; amphidromous (Ref. 51243)
Trophic Level
3.5 s.e. 0.37 Based on food items.
Occurs in Marine / Salt water
True
Occurs in Brackish water
True
Occurs in Fresh Water
True
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
15.0 cm
Common Length
10.0 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 (13 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