Length in freshwater is recorded at 6.5 cm TL; in the sea, it is recorded at 8.5-9.0 cm TL . Males build, guard and aerate the nest where the eggs are deposited .
Dorsal spines (total): 7 - 11; Dorsal soft rays (total): 8 - 13; Anal spines: 1; Anal soft rays: 7 - 11. : elongated.
Behavioural data for Amur stickleback is currently being reviewed.
Males build, guard and aerate the nest where the eggs are deposited .
Marine; freshwater; brackish; benthopelagic. Temperate; 58°N - 34°N, 120°E - 161°E
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 13 records indexed .
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