Strong spined silver-biddy (Gerres phaiya) fish species and information / pictures of Strong spined silver-biddy - Gerres phaiya

Strong spined silver-biddy (Gerres phaiya) fish species information

Scientific Name
Gerres phaiya

Common Name
Strong spined silver-biddy

Biology
Dorsal spines (total): 9; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 7. When fresh, upper surface of head and trunk silvery, golden-brown, grading to silver on abdomen. Pelvic and anal fins yellow, first few rays of pelvic fin with a white distal margin or whitish-hyaline posteriorly; caudal fin yellowish-dusky with slightly whitish lower margin posteriorly, lobes usually broadly rounded posteriorly; dorsal and pectoral fins yellowish-hyaline; trunk with approximately 6-10 vertical dusky bars (about half width of pupil diameter), more apparent when stressed or when preserved. Number of scales between the base of the 5th dorsal fin spine and lateral line 4-4.5. Second dorsal fin spine longest, 23-27% SL (mean 25%). Supraneural bones 3 (Ref. 41102).

Classification

Classified By
Iwatsuki & Heemstra, 2001
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Mojarras (Gerreidae)

Distribution

Region
Western Indian Ocean
Distribution
Western Indian Ocean: southwest coast of India; probably also in Bengal Bay and the Andaman Sea.
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; brackish; demersal
Trophic Level
3.25 s.e. 0.44 Based on size and trophs of closest relatives
Occurs in Marine / Salt water
True
Occurs in Brackish water
True
Occurs in Fresh Water
False
Occurs on Reefs
False
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
13.7 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
Unknown
Vulnerability
Low vulnerability (14 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