Big roughy
(Gephyroberyx japonicus)

Image source: Jo's Animal Database

Classification

Species: Gephyroberyx japonicus

General data

Scientific names: Big roughy
Local names: Blueberry roughy
Habitat: Saltwater
Climates: Subtropical, Temperate
Native to coast of: Asia

Gephyroberyx japonicus, the big roughy or blueberry roughy, is a species of fish in the family Trachichthyidae.

It is endemic to the northwest Pacific off Japan, Taiwan and Hawaii, and can be found at depths between 300 and 1,500 m (980–4,920 ft).

It can reach 30–35 cm (12–14 in) in length.

Based on broadly overlapping morphological features it is sometimes (e.g., by IUCN) considered a synonym of G. darwinii.

It is sometimes seen in deep-sea exhibits in public aquariums and it has spawned in captivity.