Gasterosteus aculeatus three-spined stickleback

ShoalBase has 9 records for this species, reported from 6 countries.

Social systemsaggregation (non spawning), schooling, shoaling
Group sizeslarge groups (100-1000), medium groups (10-100), small groups (3-10)
Habitatsbrackish, coastal marine, lake/pond, pelagic marine, river/stream
Life stages observedadult, juvenile
Evidence sourcespersonal observation, published peer-reviewed paper
CountriesCanada, Iceland, Netherlands, Sweden, UK, USA
FamilyGasterosteidae
OrderPerciformes/Gasterosteoidei
ClassTeleostei