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Endangered River Dolphin Species’ Numbers On the Rise | National Geographic


within the last couple of decades this
within the last couple of decades this population has dramatically decreased
they are incredibly challenging to study
they are incredibly challenging to study because when they do surface they don’t
because when they do surface they don’t
because when they do surface they don’t bring much of their bodies like the
bring much of their bodies like the
bring much of their bodies like the water so it’s difficult to identify
water so it’s difficult to identify
water so it’s difficult to identify individuals and it’s difficult to really
individuals and it’s difficult to really
individuals and it’s difficult to really discern what type of behavior is
discern what type of behavior is
discern what type of behavior is occurring for photo identification of
occurring for photo identification of
occurring for photo identification of individual dolphins for many many
individual dolphins for many many
individual dolphins for many many species we use the shape or the
species we use the shape or the
species we use the shape or the coloration that you find on the dorsal
coloration that you find on the dorsal
coloration that you find on the dorsal area particularly the dorsal fin the
area particularly the dorsal fin the
area particularly the dorsal fin the main cause of mortality for the species
main cause of mortality for the species
main cause of mortality for the species previously was entanglement and gill
previously was entanglement and gill
previously was entanglement and gill nets the river guard program was put in
nets the river guard program was put in
nets the river guard program was put in place to remove the illegal gill nets
place to remove the illegal gill nets
place to remove the illegal gill nets which are being said in the dolphin
which are being said in the dolphin
which are being said in the dolphin sanctuary areas so the chances of
sanctuary areas so the chances of
sanctuary areas so the chances of dolphins becoming entangled in these
dolphins becoming entangled in these
dolphins becoming entangled in these nets of course a far less if they simply
nets of course a far less if they simply
nets of course a far less if they simply aren’t there
[Music]
[Music] we’re quite hopeful because we haven’t
we’re quite hopeful because we haven’t
we’re quite hopeful because we haven’t we’ve seen a decrease in adult mortality
we’ve seen a decrease in adult mortality
we’ve seen a decrease in adult mortality and there are several new curves in the
and there are several new curves in the
and there are several new curves in the last two years as well
last two years as well
last two years as well the last population estimate was 492
the last population estimate was 492
the last population estimate was 492 individual dolphins in the area and
individual dolphins in the area and
individual dolphins in the area and that’s an increase on 12 from the
that’s an increase on 12 from the
that’s an increase on 12 from the previous estimate so we’re very hopeful
previous estimate so we’re very hopeful
previous estimate so we’re very hopeful that this population is now on the road
that this population is now on the road
that this population is now on the road to recovery I think one of the most
to recovery I think one of the most
to recovery I think one of the most spectacular things about this particular
spectacular things about this particular
spectacular things about this particular population is the setting itself they
population is the setting itself they
population is the setting itself they are such an integral part of the
are such an integral part of the
are such an integral part of the communities that live alone deliver see
communities that live alone deliver see
communities that live alone deliver see little to the people that live in the
little to the people that live in the
little to the people that live in the Mekong area rely entirely on the River
Mekong area rely entirely on the River
Mekong area rely entirely on the River habitat as do the dolphins the dolphins
habitat as do the dolphins the dolphins
habitat as do the dolphins the dolphins and the humans it’s all talking part of
and the humans it’s all talking part of
and the humans it’s all talking part of one big system that’s really clear to
one big system that’s really clear to
one big system that’s really clear to see
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