far out in the Indian Ocean two men search for sharks
QV tree is a dive guide and naturalist
QV tree is a dive guide and naturalist Rian Johnson is a shark scientist their
Rian Johnson is a shark scientist their
Rian Johnson is a shark scientist their dive site is a labyrinth of reefs
dive site is a labyrinth of reefs
dive site is a labyrinth of reefs caverns and caves and it holds a special
caverns and caves and it holds a special
caverns and caves and it holds a special secret unusual sunken pits that look
secret unusual sunken pits that look
secret unusual sunken pits that look like they’ve been carved by giant
like they’ve been carved by giant
like they’ve been carved by giant whirlpools these places are special they
whirlpools these places are special they
whirlpools these places are special they hold a magnetic attraction to sharks
hold a magnetic attraction to sharks
hold a magnetic attraction to sharks huge numbers of sharks the very shape of
huge numbers of sharks the very shape of
huge numbers of sharks the very shape of these pits channel’s the water into
these pits channel’s the water into
these pits channel’s the water into violent vortices bad for divers but good
violent vortices bad for divers but good
violent vortices bad for divers but good for sharks but what exactly attracts the
for sharks but what exactly attracts the
for sharks but what exactly attracts the Sharks remains a mystery at the base of
Sharks remains a mystery at the base of
Sharks remains a mystery at the base of the pit lies an entrance tunnel like a
the pit lies an entrance tunnel like a
the pit lies an entrance tunnel like a secret passage at the end of the town a
secret passage at the end of the town a
secret passage at the end of the town a chamber of light
Hugh calls this the cathedral bid it is
Hugh calls this the cathedral bid it is like God talking to you and then a pair
like God talking to you and then a pair
like God talking to you and then a pair appears right in the cathedrals
appears right in the cathedrals
appears right in the cathedrals floodlights
floodlights
floodlights soon followed by another one and then a
soon followed by another one and then a
soon followed by another one and then a large and very pregnant female shark
large and very pregnant female shark
large and very pregnant female shark arrives on the scene to see a breeding
arrives on the scene to see a breeding
arrives on the scene to see a breeding pair and a pregnant female is an
pair and a pregnant female is an
pair and a pregnant female is an excellent sign it’s much harder tagging
excellent sign it’s much harder tagging
excellent sign it’s much harder tagging sharks like these I’m used to big great
sharks like these I’m used to big great
sharks like these I’m used to big great white sharks who aren’t afraid of coming
white sharks who aren’t afraid of coming
white sharks who aren’t afraid of coming close one shark is bolder than the rest
close one shark is bolder than the rest
close one shark is bolder than the rest and comes close success
and then another the tag doesn’t harm
and then another the tag doesn’t harm the shark and the animal gets used to it
the shark and the animal gets used to it
the shark and the animal gets used to it quickly the tag will allow me to follow
quickly the tag will allow me to follow
quickly the tag will allow me to follow the shocks when they leave the pit each
the shocks when they leave the pit each
the shocks when they leave the pit each tag gives off a radio signal that he can
tag gives off a radio signal that he can
tag gives off a radio signal that he can pick up on his topside receiver
they’ll follow the shark all day if
they’ll follow the shark all day if necessary she completes her journey
necessary she completes her journey
necessary she completes her journey three miles away and rests and then
three miles away and rests and then
three miles away and rests and then sharks swimming down the channel – they
sharks swimming down the channel – they
sharks swimming down the channel – they must swim fast to keep up the Sharks
must swim fast to keep up the Sharks
must swim fast to keep up the Sharks lead them over a wall and into another
lead them over a wall and into another
lead them over a wall and into another shark pit
everywhere they look sharks 50 60 70
everywhere they look sharks 50 60 70 sharks looks like it is a nursery
sharks looks like it is a nursery
sharks looks like it is a nursery because it is only young sharks here
because it is only young sharks here
because it is only young sharks here that’s incredible I can see the shot
that’s incredible I can see the shot
that’s incredible I can see the shot that you tagged over there it’s the
that you tagged over there it’s the
that you tagged over there it’s the shark from the cathedral and another
shark from the cathedral and another
shark from the cathedral and another arrival from Cathedral it’s clear the
arrival from Cathedral it’s clear the
arrival from Cathedral it’s clear the Sharks are moving between the pits up
Sharks are moving between the pits up
Sharks are moving between the pits up above the surface of the basin pit is
above the surface of the basin pit is
above the surface of the basin pit is churning the foaming water attracts the
churning the foaming water attracts the
churning the foaming water attracts the Sharks something Hugh has noticed in all
Sharks something Hugh has noticed in all
Sharks something Hugh has noticed in all the shark pits few suspects there’s a
the shark pits few suspects there’s a
the shark pits few suspects there’s a good reason why the Sharks like this
good reason why the Sharks like this
good reason why the Sharks like this foaming water I think that all those
foaming water I think that all those
foaming water I think that all those bubbles in the water bring extra oxygen
bubbles in the water bring extra oxygen
bubbles in the water bring extra oxygen into the bit could this explain why the
into the bit could this explain why the
into the bit could this explain why the Sharks like these pits a lot of sharks
Sharks like these pits a lot of sharks
Sharks like these pits a lot of sharks including the black tails have to
including the black tails have to
including the black tails have to continuously swim to breathe
continuously swim to breathe
continuously swim to breathe so if it is a situation that within the
so if it is a situation that within the
so if it is a situation that within the pit there are high levels of dissolved
pit there are high levels of dissolved
pit there are high levels of dissolved oxygen it might give them a greater
oxygen it might give them a greater
oxygen it might give them a greater chance to rest they don’t have to swim
chance to rest they don’t have to swim
chance to rest they don’t have to swim quite so much to get the same amount of
quite so much to get the same amount of
quite so much to get the same amount of oxygen Ryan needs to sample water from
oxygen Ryan needs to sample water from
oxygen Ryan needs to sample water from all the shark pits
what’s going on is that these waves are
what’s going on is that these waves are crashing up against the island and it
crashing up against the island and it
crashing up against the island and it hits the rocks and all this oxygen-rich
hits the rocks and all this oxygen-rich
hits the rocks and all this oxygen-rich water gets shot down right into the pit
water gets shot down right into the pit
water gets shot down right into the pit that’s what the Sharks love that’s what
that’s what the Sharks love that’s what
that’s what the Sharks love that’s what they seem to be looking for back at the
they seem to be looking for back at the
they seem to be looking for back at the dive headquarters
dive headquarters
dive headquarters Ryan checks to see if his results
Ryan checks to see if his results
Ryan checks to see if his results confirm his theory when I first hopped
confirm his theory when I first hopped
confirm his theory when I first hopped into the water outside of the pits while
into the water outside of the pits while
into the water outside of the pits while swimming through these normal levels of
swimming through these normal levels of
swimming through these normal levels of dissolved oxygen but as I swam into the
dissolved oxygen but as I swam into the
dissolved oxygen but as I swam into the pits the levels of oxygen increased
pits the levels of oxygen increased
pits the levels of oxygen increased around four to five percent so it seems
around four to five percent so it seems
around four to five percent so it seems that this almost Jacuzzi of super
that this almost Jacuzzi of super
that this almost Jacuzzi of super oxygenated water is what’s drawing all
oxygenated water is what’s drawing all
oxygenated water is what’s drawing all these sharks into the pits so Hugh was
these sharks into the pits so Hugh was
these sharks into the pits so Hugh was right after all
Hugh and Ryan’s expedition has unlocked
Hugh and Ryan’s expedition has unlocked some of the mysteries surrounding this
some of the mysteries surrounding this
some of the mysteries surrounding this very special hidden world there is no
very special hidden world there is no
very special hidden world there is no doubt that these pits are critical
doubt that these pits are critical
doubt that these pits are critical habitat for the local survival the shark
habitat for the local survival the shark
habitat for the local survival the shark species I want to keep those places
species I want to keep those places
species I want to keep those places where we have seen the shops I want to
where we have seen the shops I want to
where we have seen the shops I want to keep them secret because I want this
keep them secret because I want this
keep them secret because I want this shop to be at peace
shop to be at peace
shop to be at peace for now the location of the shark pits
for now the location of the shark pits
for now the location of the shark pits will be Hugh’s secret
”
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