Asian Diver – March 2018

Cuttlefish

Mackerel

Shrimp

Herring Crab

Squid

PREDATORS

Predators of the blue shark include larger sharks such as great

whites, shortfin makos, orcas, and even California sea lions

TRANSATLANTIC MIGRATIONS
Tagging studies have revealed these sharks commonly travel
distances of up to 2,700 kilometres and it is thought they use
open ocean currents to conserve energy and follow a clockwise
pattern around the Atlantic Ocean

SNOUT, JAWS AND TEETH

The snout is long and rounded and greater in length than

the width of the mouth. The teeth in the upper jaw

are triangular with curved cusps, serrated edges and

bases that overlap one another. The lower jaw teeth are

triangular with nearly erect cusps and a symmetrical

shape. Each jaw contains one median tooth with

13–15 teeth on either side

DIET

Blues feed mostly on small bony fish such as herring

and mackerel and invertebrates such as squid, cuttlefish

and crabs and shrimps. They are opportunistic feeders

that will also target fishing nets and scavenge on dead

animals. Large numbers of blue sharks are often seen

among larger species of sharks feeding on whale

carcasses

Great White Shark

California Sea Lion

Shortfin Mako Shark

up to

2,700

kilometres

Atlantic Ocean Orca