Habitat
Cold and temperate Atlantic; reaches the western approaches to the Strait seasonally.
Lamna nasus
A stocky, warm-blooded mackerel shark that thrives in cooler Atlantic waters.
1.8–3.7 m
Not aggressive
Cold and temperate Atlantic; reaches the western approaches to the Strait seasonally.
Endothermic — maintains body temperature above the surrounding water.
Schooling pelagic fish (mackerel, herring) and cephalopods.
Active, fast swimmer; sometimes appears playful around boats.
Almost no recorded interactions with humans.
IUCN: Vulnerable.
Data compiled from peer-reviewed and authoritative open sources. Last reviewed 2026.
Conservation status for each species.
Biology, ecology and identification.
Maximum sizes, distribution and life-history data.
Documented species behaviour around humans.
Local marine fauna records around the Strait.