Ridged-eye flounder (Pleuronichthys cornutus) fish species and information / pictures of Ridged-eye flounder - Pleuronichthys cornutus

Ridged-eye flounder (Pleuronichthys cornutus) fish species information

Scientific Name
Pleuronichthys cornutus

Common Name
Ridged-eye flounder

Biology
Dorsal soft rays (total): 72-88; Anal soft rays: 52 - 65. This species is distinct in having the following characters: brown body with small, dark, irregular spots densely distributed on ocular side; small scales, imbricated, elongate, and not deciduous; supratemporal lateral line usually with no antrorse branch; body depth 48.7-63.3% SL (mean 54.5% SL); dorsal-fin soft rays 72-88 (mode 77, mean 78.4); anal-fin soft rays 52-65 (mode 58, mean 58.3); abdominal vertebrae 12-14 (mode, 13), caudal vertebrae 22-26 (mode 24) (Ref. 84246).

Classification

Classified By

Temminck & Schlegel, 1846

Class

Ray-finned fishes (Actinopterygii)

Order

Flatfishes (Pleuronectiformes)

Family

Righteye flounders (Pleuronectidae)

Distribution

Region

Northwest Pacific

Distribution

Northwest Pacific: southern Hokkaido to the Korean Peninsula, Yellow Sea, Gulf of Po-Hai and East and South China seas.

Range

Unknown

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

2 m

Depth To - meters

170 m

Zone

demersal

Environment

Marine; demersal; depth range 2 - 170 m (Ref. 56557)

Trophic Level

3.16 s.e. 0.38 Based on size and trophs of closest relatives

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

30.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5078 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 (39 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.18)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated