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