| Family: |
Gasterosteidae (Sticklebacks and tubesnouts) |
| Max. size: |
7 cm TL (male/unsexed) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
Asia: Hokkaido, Japan and Sakhalin, Russian Federation. |
| Diagnosis: |
|
| Biology: |
Adults inhabit weedy streams. Males build, guard and aerate the nest where the eggs are deposited just above the bottom (Ref. 205, 50519). |
| IUCN Red List Status: |
Data deficient (DD); Date assessed: 05 October 2016 Ref. (130435)
|
| Threat to humans: |
harmless |
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