Fish
Atlantic horse mackerel
Trachurus trachurus
How to spot it
Iridescent silver body with a strongly arched lateral line of bony scutes; tight dense schools.
Usually seen at
23-345 m (median 72 m)
Size
Medium (10-50 cm)
Habitat
Midwater, Open water
Behaviour
Schooling, Fast swim
Where it's seen
Occurrence records around the UK and north-east Atlantic (OBIS).