Fish
Saithe
Pollachius virens
How to spot it
Pollack's cousin: dark greenish back, silvery sides, and a near-STRAIGHT pale lateral line (not kinked). Faster, more schooling than pollack; jaw is level rather than under-shot.
Usually seen at
28-200 m (median 115 m)
Size
Large (over 50 cm)
Habitat
Midwater, Open water
Behaviour
Schooling, Fast swim
Where it's seen
Occurrence records around the UK and north-east Atlantic (OBIS).