Fin's Fish Guide
The Barnstickle (Gasterosteus wheatlandi) is a brackish-water fish of the family Gasterosteidae that grows up to 8 cm.
Description
The blackspotted stickleback is a small coastal fish reaching about 7 cm, native to the Northwest Atlantic. It lives mainly in shallow, brackish inshore waters among floating and rooted vegetation a short distance from shore. The laterally compressed body bears bony lateral plates and stout dorsal spines that deter predators. During the breeding season males turn golden with a dark blotch and build, guard and aerate a nest in which the eggs are deposited. It feeds on small crustaceans, insect larvae and other zooplankton. The species has no commercial value and is completely harmless to humans.
Frequently asked questions
How do you recognise the Barnstickle?
The Barnstickle has a torpedo-shaped body, is mainly green and shows a spots pattern. Separate dorsal spines and bony plates; males build and guard a nest.
Where does the Barnstickle live?
The Barnstickle lives in brackish water and is mostly found around mixed bottom. Northwest Atlantic coast, from Newfoundland to Chesapeake Bay.
How big does the Barnstickle get?
The Barnstickle grows to a maximum of about 8 cm. On average the species is around 4 cm.
Is the Barnstickle dangerous to humans?
No, the Barnstickle is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Gasterosteus
More from the family Gasterosteidae
Want the complete picture on the Barnstickle?
Point your camera at the fish and Fin names the species in seconds. Free, and the Barnstickle is one of 12,519 species in the app.
Or scan with your phone