Bearded croaker (Johnius amblycephalus) fish species and information / pictures of Bearded croaker - Johnius amblycephalus

Bearded croaker (Johnius amblycephalus) fish species information

Scientific Name
Johnius amblycephalus

Common Name
Bearded croaker

Biology
Dorsal spines (total): 11; Dorsal soft rays (total): 23-26; Anal spines: 2; Anal soft rays: 7

Classification

Classified By
Bleeker, 1855
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Drums or croakers (Sciaenidae)

Distribution

Region
Indo-West Pacific
Distribution
Indo-West Pacific: east of Pakistan through the coastal waters of the Indian Ocean and the Indo-Australian Archipelago to the Philippines, New Guinea and to the Repulse Bay, Queensland; through the South China Sea to Hainan, Taiwan, Hong Kong and Kwangtung. Reports from southern Africa are misidentifications of Johnius fuscolineatus (Ref. 13679).
Range
Unknown

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
40 m
Zone
demersal
Environment
Marine; freshwater; brackish; demersal; depth range ? - 40 m (Ref. 30573)
Trophic Level
3.3 s.e. 0.40 Based on size and trophs of closest relatives
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
25.0 cm
Common Length
15.0 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: minor commercial
Vulnerability
Low to moderate vulnerability (27 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