some of you may not know but there are
stingrays in freshwater there are
probably 30 or so species of stingrays
that live in freshwater and three of
those species are some of the world’s
largest freshwater fish the first
project that we had it was on the
species here the giant freshwater
stingray that’s found in Southeast Asia
and so we worked with the recreational
anglers to catch tag and release these
fish to try to get information about
their movement patterns this is a video
of us trying to catch one of these big
fish so that we can get measurements
we have it haha there did we tie the
barb to get a closer look this could be
the largest ray that I’ve ever seen and
it could be the biggest freshwater fish
on earth so let’s get a total length
it’s 12 feet long and now I really want
to get a whip seven feet two inches wide
this is the biggest freshwater stingray
I’ve seen so this ray is probably 400
maximum 500 pounds as big as it is I
don’t think it’s a world record all care
cuz ah there you go this is the second
species of big freshwater ray this is
called a short-tailed River ray and we
were down in Argentina trying to find
this ray and we know next to nothing
about these fish one of the reasons why
we don’t know very much their camouflage
they hide in the mud they’re so big that
fishermen down there when they hook into
one they don’t even try to land it they
can’t even bring it up with the fishing
gear that they use so this is a species
that’s really in need of more study and
then the third species of giant Ray
occurs in northern Australia and it
could be the biggest of all the Rays
there are stories of Ray’s ten feet in
width so that array than ten feet width
it would probably be 20 feet long and
that species I have a video of it here
was only described in 2008
this is the the giant carp so the giant
carp it’s it’s now critically endangered
so they’re very few these carp left and
the only place I know that it’s still
caught is in Cambodia on the Tonle Sap
River in the week basically before the
full moon in November and so you can
imagine if you’re trying to study or
better understand one of these fish and
there’s only one place at one time of
year in the world where you can find it
it’s it’s a huge challenge and as you
can probably guess a lot of these fish
are endangered about 70% of them are
risk of extinction this is a Chinese
paddlefish found only in the Yangtze
River very unusual fish long slender
fish with a sword like snout that could
get 20 feet long and to my knowledge
none of these fish have been seen in
several years so this could be the first
one of these big fish that actually has
disappeared but my concern is that if we
don’t do something it might not be the
last one thing I just want to emphasize
these fish one thing they’re not is
they’re not dangerous that fish it might
look mean but it it’s not mean inside
it’s not mean inside we’ve been swimming
with pools and pools of 30 or 40 of
these alligator gar and they don’t they
don’t give you the time of day
[Music]
you
stingrays in freshwater there are
probably 30 or so species of stingrays
that live in freshwater and three of
those species are some of the world’s
largest freshwater fish the first
project that we had it was on the
species here the giant freshwater
stingray that’s found in Southeast Asia
and so we worked with the recreational
anglers to catch tag and release these
fish to try to get information about
their movement patterns this is a video
of us trying to catch one of these big
fish so that we can get measurements
we have it haha there did we tie the
barb to get a closer look this could be
the largest ray that I’ve ever seen and
it could be the biggest freshwater fish
on earth so let’s get a total length
it’s 12 feet long and now I really want
to get a whip seven feet two inches wide
this is the biggest freshwater stingray
I’ve seen so this ray is probably 400
maximum 500 pounds as big as it is I
don’t think it’s a world record all care
cuz ah there you go this is the second
species of big freshwater ray this is
called a short-tailed River ray and we
were down in Argentina trying to find
this ray and we know next to nothing
about these fish one of the reasons why
we don’t know very much their camouflage
they hide in the mud they’re so big that
fishermen down there when they hook into
one they don’t even try to land it they
can’t even bring it up with the fishing
gear that they use so this is a species
that’s really in need of more study and
then the third species of giant Ray
occurs in northern Australia and it
could be the biggest of all the Rays
there are stories of Ray’s ten feet in
width so that array than ten feet width
it would probably be 20 feet long and
that species I have a video of it here
was only described in 2008
this is the the giant carp so the giant
carp it’s it’s now critically endangered
so they’re very few these carp left and
the only place I know that it’s still
caught is in Cambodia on the Tonle Sap
River in the week basically before the
full moon in November and so you can
imagine if you’re trying to study or
better understand one of these fish and
there’s only one place at one time of
year in the world where you can find it
it’s it’s a huge challenge and as you
can probably guess a lot of these fish
are endangered about 70% of them are
risk of extinction this is a Chinese
paddlefish found only in the Yangtze
River very unusual fish long slender
fish with a sword like snout that could
get 20 feet long and to my knowledge
none of these fish have been seen in
several years so this could be the first
one of these big fish that actually has
disappeared but my concern is that if we
don’t do something it might not be the
last one thing I just want to emphasize
these fish one thing they’re not is
they’re not dangerous that fish it might
look mean but it it’s not mean inside
it’s not mean inside we’ve been swimming
with pools and pools of 30 or 40 of
these alligator gar and they don’t they
don’t give you the time of day
[Music]
you
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