Thresher Shark
|
Scientific
Name |
Alopias
vulpinus |
| |
| Other
Names |
N/A |
| |
| World
Record |
802lb |
| |
Description
Colour varies from brown
to black with metallic hues from above
and irregular white markings on the
underside. The thresher shark is characterized
by its large upper caudal fin. This
tail fin may often be 50 percent of
the total length of the shark. It
has a short snout and large eyes placed
forward on the head. The second dorsal
fin is much smaller than the first.
The thresher is a strong swimmer and
can leap clear of the water. The jaws
are small with small, curved sharp
teeth without basal cusps or serrations.
Colour varies from brown to black
with metallic hues from above and
irregular white markings on the underside.
Habitat
The thresher shark is a pelagic
species inhabiting both coastal and
oceanic waters. It is most commonly
observed far from shore, although
it wanders close to the coast in search
of food. Adults are common over the
continental shelf, while juveniles
reside in coastal bays and near shore
waters. It's mostly seen on the surface
but it inhabits waters to 1,800 feet
(550 m) in depth.
Feeding Habits
The thresher shark eats schooling
fish, such as herring and mackerel
and cephalopods such as squid. The
large caudal fin is used to slap the
surface of the water forcing fish
to form tighter schools; the tail
can then be used as a whip to stun
or kill the prey.
Age and Growth
The maximum size recorded
for this species is 6.1 meters, however
they generally are between 2 to 5
meters in length. This shark is ovoviviparous,
with the eggs being hatched inside
the female, and 2 to 6 live pups being
delivered at a size of 1.5 meters
long. During development the young
may cannibalize their siblings within
the uterine chamber.
Tackle and Methods
A 50 lbs tO 80 LBS rod and reel is
a must for Thresher Shark fishing,
and again a move up to an even stronger
rig, up to 130 lb IGFA standards,
is recommended. Wire trace is essential
and the standard shark bait of a full
mackerel is a bit on small side -
Thresher Sharks will as readily feed
on Bonito and small Tuna as they will
Mackerel.
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