Sphyrna zygaena (Smooth hammerhead)
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Sphyrna zygaena (Smooth hammerhead) [Illustration
by Ann Hecht ©]
A large hammerhead without a notch at the
centre of head, 1st dorsal moderately high, 2nd dorsal and pelvic
fins low. Colour olive grey or dark grey above white below.
4 m TL.
Southwest and east coast, St. Helena Bay to
Mozambique; all temperate and tropical seas.
well offshore, surface to at least 200 m deep.
the eastern Cape. Bears 29 to 37 young. Enormous schools of young
have been seen in Algoa Bay and off adjacent areas. Large adults
occur offshore, while the young are found up to the surfline. Feeds
on bony fish, including maasbanker, sardine, gurnard, panga, hake,
and anchovy, other sharks, skates and rays, squid, cuttlefish,
shrimp and crabs.
Caught by shore and skiboat anglers
and bottom trawlers, and by the Natal shark nets. Will steal speared
fish from divers.
Text by Leonard J.V. Compagno, David A. Ebert
and Malcolm J. Smale