Malayan flounder (Pseudorhombus malayanus) fish species and information / pictures of Malayan flounder - Pseudorhombus malayanus

Malayan flounder (Pseudorhombus malayanus) fish species information

Scientific Name
Pseudorhombus malayanus

Common Name
Malayan flounder

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 72-74; Anal spines: 0; Anal soft rays: 58 - 59. Body brownish, a small dark blotch at junction of straight and curved parts of lateral line. Body deep ovoid, its depth 1.8 to 2 times in SL. Head length 3.1 to 3.3 times in SL. Upper-eye diameter 5.3 to 5.9 times in head length. Maxilla extending to below posterior margin of lower eye. Upper-jaw length 2.3 to 2.4 times in head length. Teeth in upper jaw small and close-set laterally, and enlarged anteriorly. Teeth in lower jaw stronger and more widely spaced than those of upper jaw. Pectoral fin on ocular side with 12-13 soft rays (Ref 9774).

Classification

Classified By

Bleeker, 1865

Class

Ray-finned fishes (Actinopterygii)

Order

Flatfishes (Pleuronectiformes)

Family

Large-tooth flounders (Paralichthyidae)

Distribution

Region

Indo-West Pacific

Distribution

Indo-West Pacific: Persian Gulf east to India; throughout the Malay Peninsula to the Philippines and Indonesia.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

20 m

Depth To - meters

27 m

Zone

demersal

Environment

Marine; demersal; depth range 20 - 27 m (Ref. 11790)

Trophic Level

3.5 s.e. 0.37 Based on food items.

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

35.0 cm

Common Length

20.0 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

Moderate vulnerability (36 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated