Olive flounder

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Paralichthys olivaceus
Korea flatfish in a supermarket display tank
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Pleuronectiformes
Family: Paralichthyidae
Genus: Paralichthys
Species: P. olivaceus
Binomial name
Paralichthys olivaceus
(Temminck & Schlegel, 1846)

The olive flounder, bastard halibut or Japanese halibut (Paralichthys olivaceus) is a temperate marine species of large-tooth flounder native to the north-western Pacific Ocean.

It is often referred to as the Japanese flatfish or Korea(n) flatfish (광어) when mentioned in the context of those countries.

It reaches a length of 103 cm (41 in) and a weight of 9.1 kg (20 lb).[1]


The olive flounder is the most common flatfish species raised in aquaculture in Korea. They are raised in Japan and China as well. It is the most highly prized of the Japanese flounders. Although the aquaculture for the olive flounder started from the late 1980s, its commercial production didn't begin on a major scale until the 1990s in Korea.


  1. ^ Froese, Rainer and Pauly, Daniel, eds. (2014). "Paralichthys olivaceus" in FishBase. May 2014 version.