Transcript Where are they found?

Pink Dolphins
These beautiful
creatures are known
as Indo-Pacific
Humpback Dolphin,
Chinese White
Dolphin, the Amazon
River Dolphin
otherwise Boto or
Pink River Dolphins.
Why are they so special?
These dolphins are endangered and very
pink unlike other dolphins in the world. The
rarer ones are very pink and born albino,
meaning they have very pale glossy pink
skin and red eyes. People who have seen
them say that they are pinker than the
South American Boto, they are very
unique to Southeast Asia.
Pink Dolphins live… where?
Where are they found?
The pink dolphin has
different names due to the
different geographical
regions they live in. For
example the Amazon river
dolphin. They can be
found from South Africa
to Australia and up the
Chinese coast although
most dolphins like to live in
the Orinoco river.
Colour change
Pink Dolphins aren’t always pink you know,
here is how they change:
Birth: Black
Childhood: Gray
Youth age:
Pink with spots
Adult:
Pink Finally!
FUN FACT
Pink Dolphins turn pinker when they are
excited!
What do dolphins eat?
They mainly eat
fish but they eat
crabs, shrimps,
and … more
fish!
Although these creatures are
cute… they are endangered
What endangers the dolphins?
Reclamation
• Construction of the new airport at Chep
Lap Kok and the North Lantau
Expressway have destroyed the natural
coast and homes of many marine
creatures.
• Toxic and contaminated mud from
reclamation is dumped in the seabed just
north of the new airport platform.
Sewage
About 150,000 cubic meters of raw sewage is
dumped into the western harbor area every
day! Sewage includes household wastes
such as
• cleaning fluids
• Bacteria
• and viruses
• And industrial effluent.
These can affect the dolphins and harm them,
industrial effluent.
A picture of sewage will be added on the sides
of this slide.
They should be
living in this!
Over-fishing
Over-fishing and boat
pollution is really a big
problem in Hong Kong.
About 70 boats cross the
harbour each day and this
results in over-fishing and
polluting the habitats in
which the dolphins live in.
They are caught in nets a
lot, and thrown back into
the sea by the time they
are already dead or injured.
How many dolphins are there now?
Estimates are fewer than 100 to around 150.
This is because there is an increase in
•poaching
•landfills
• sea traffic.
Since Chinese White Dolphins rarely stray far away from their
habitat, but the water pollution in Hong Kong has a high impact on
them.
Industrial, agricultural, and domestic sewage are amongst the threats
to the dolphins. In the Pearl River Delta, about 190,000 cubic metres
of sewage is drained into the sea without any treatment daily.
What have we done to help them?
There are rules now that limit
fishing to prevent over-fishing so
Dolphins have enough to eat
and they are not caught.
The pink Chinese White Dolphins
are a rare sight now but we can
pay attention to the rules so that
we may not endanger them.