Big Roughy
Gephyroberyx japonicus
- Usual depth191–432 m
- Water temperature20–29 °C
- Best monthsMay
- How commonRare
About this species
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 considered a synonym of G. darwinii.
Text from the Wikipedia article “Gephyroberyx japonicus”, licensed CC BY-SA 4.0. Read the article
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 0 records
- February: 0 records
- March: 1 records
- April: 0 records
- May: 6 records
- June: 0 records
- July: 0 records
- August: 1 records
- September: 0 records
- October: 1 records
- November: 0 records
- December: 0 records
Depth and water temperature
Depth
Mostly recorded at 191–432 m · Deepest record: 463 m
Water temperature
Recorded in surface water of 20–29 °C
Names and classification
- English
- Big Roughy
Names in 3 more languages
- Spanish
- Pez reloj japonés
- Japanese
- Hashikimme, ハシキンメ
- Simplified Chinese
- 日本橋棘鯛, 日本橋燧鯛, 燧鯛
Other scientific names: Trachichthys japonicus
Similar species
- Big roughy
Gephyroberyx darwinii
- Philippine Luminous Roughy
Aulotrachichthys latus
- Western Pacific Roughy
Hoplostethus japonicus
- Blackfin Roughy
Hoplostethus melanopterus
- Blackfin Roughy
Hoplostethus melanopus
Sources and credits
Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).
- Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
- Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
- Conservation status as published by GBIF (IUCN Red List).
- 54 open-data records from 1952 to 2008.
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