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Setting up your tank

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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