| Occurrence | native | ||
| Importance | Ref. | ||
| Aquaculture | Ref. | ||
| Regulations | Ref. | ||
| Freshwater | Yes | ||
| Brackish | Yes | ||
| Saltwater | Yes | ||
| Live export | |||
| Bait | No | ||
| Gamefish | No | ||
| Abundance | Ref. | ||
| Comments |
Type locality, Hokkaido, Toshima, Yamagoe, Yurapu River, NSMT-P 60922 (ex 14366) (holotype of Gymnogobius opperiens, 6.7 cm SL, sex undetermined).(Ref. 81467). Known from NE and central Honshu and southern Hokkaido Occur in the Himi region from a habitat study conducted in Toyama Bay (Ref. 58909). |
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| States/Provinces | |||
| States/Provinces Complete? | No | ||
| National Checklist | |||
| Country information | https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ja.html | ||