Fisheries Infosite

Smooth oreo South-East (Chatham Rise) (SSO4)
Scientific name
Pseudocyttus maculatus

Physical characteristics

Smooth Oreo have uniform bluish-grey to greyish-brown bodies. Juveniles are silvery-grey with multiple dark blue blotches. They can reach a maximum length of 51 cm.

Life cycle

Smooth Oreo has an estimated maximum age of 86 years. It is estimated that females reach maturity at 40 cm in length and 31 years of age. Spawning takes place from late October to December.


Smooth Oreo is found throughout New Zealand at depths of 600-1500 m.

Smooth Oreo is managed under the QMS as Oreo (OEO). All catch and value information relating to this stock can be found on the OEO species page.(click here)

Key statistics
Reported commercial catch1 (tonnes)
Quota value estimate2 (NZ$m)
Exports estimate2 (NZ$m)
1 Reported commercial catch is calculated for the 12 month period to 30/09/2025
2 Quota value and exports are calculated pro-rata to reported commercial catch for the 12 month period to 30/09/2025