Gasterosteus aculeatus (Three Spined Stickleback) is a species of bony fishes in the family sticklebacks. They are listed as endangered by COSEWIC. They are associated with freshwater habitat. They are native to Atlantic Ocean, The Nearctic, the Palearctic, and Pacific Ocean. They are carnivores. Individuals can grow to 11 cm. They have sexual reproduction. They have parental care (paternal care).
EOL has data for 46 attributes, including: