Gasterosteus aculeatus

Threespine stickleback | Épinoche à trois épines | TSN Code 166365

Global

• Species reported during the annual bottom trawl fish abundance surveys (DFO)

Specific to the species

• Anadromous species
• Colour : green-blue and silver, male adults red at spawning
• 3 dorsal fin spines
• Vertical bony plates on sides; caudal peduncule with a keel
• Pelvic fin with 1 spine and 1 pointed cusp at base

Observation(s)

• Total catch in number: 355
• Total catch in weight (kg): 2
• Maximum length of sampled individuals (mm): 76
• Minimum length of sampled individuals (mm): 60
• Mean length of sampled individuals (mm): 67
• Occurrence, 1-100 m depth (no of stations) : 2
• Occurrence, 101-200 m depth (no of stations): 5
• Occurrence, 201-300 m depth (no of stations): 6
• Occurrence, >300 m depth (no of stations): 17

Possible confusion with:

Group(s) of species

• Sticklebacks with 3 or 4 spines

This species is part of the following group(s):

• Sticklebacks and mummichog
• Sticklebacks with 3 or 4 spines