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Embed code for: Dugong
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This is a really rare king of marine animal here has al ot of information about it that you can you for your marina project. Hope you like!
Teacher: Sr. Mona
Group: Lilaa Abdelhadi, Muntaha Almahjub, Rumaisa Aim
Table of Contents
2. What is the mass of the Dugong in kilograms or metric tons?
3. What are the dimensions of the animal?
4. See if you can use the mass and volume of the Dugong to calculate the density of this animal. (Note: The density of the salt water is 1,028 kg/m3. The density of pure water is 1,000 kg/m3.)
5. Why does the Dugong float instead of sink?
6. What does the Dugong do when it sleeps?
The dugong is a medium-sized marine mammal. It is one of four living species of the order Sirenia, which also includes three species of manatees.
Dugongs are enormous vegetarians that can be found in warm coastal waters from East Africa to Australia, including the Red Sea, Indian Ocean, and Pacific.
Dugongs are related to manatees and are similar in appearance and behavior— though the dugong's tail is fluked like a whale's. Both are related to the elephant, although the giant land animal is not at all similar in appearance or behavior.
What is the mass of the animal in kg or metric tons?
The mass of an adult Dugong is 500 kg. In metric tons its 0.5 tons.
Baby Dugongs weigh up to 66 pounds (300 kilogram)
What are the dimensions of the Dugong?
Dugongs can be as big as 10 feet (3 meters) long.
Baby Dugongs can be up to 4 feet (1.2 meters) long .
Using Mass and Volume to Calculate the Density
See if you can use the mass and volume of the Dugong to calculate the density of this animal. (Note: The density of the salt water is 1,028 kg/m3. The density of pure water is 1,000 kg/m3.):
Volume: 4 m3
Given: Mass= 300 kg, Volume 4m3
Analysis : density= mass/volume
Solution: 300kg/4m3 = 75kg/m3
Statement: The Density of the Dugong is 75kg/m3
Why does the Dugong float and not sink?
The Dugongs are able to float instead of sinking
Dugongs can weight up to 1000 pounds but they have tail flukes and flippers helps them to float. These flukes are raised up and down in long strokes to move forward and turn. The forelimb are paddles like flippers helps in turning and floating.
What does the Dugong do when it sleeps?
Much like many marine animals - such as dolphins – Dugongs never fall asleep completely the way humans do. Their "sleep" is more like a trance or a doze during which they rest parts of their brain but are never completely unconscious.
Dugongs will rest throughout the day and night for short periods of time. Dugong breathes using the lungs. It needs to reach the surface of the water every six minute to breathe atmospheric oxygen.
Intervals between breaths depend on activity level, and when Dugongs are using a great deal of energy, they may surface to breathe as often as every 30 seconds. But when resting, Dugongs have been known to stay submerged for up to 20 minutes.
Brief summary of what you discovered based on research
In conclusion we learned many things about the dugong while doing our research, some of the things that we learned about this amazing marine animal is:
Dugongs can live for 70 years or more.
Dugongs are more closely related to elephants than to other marine mammals.
The colour of a Dugong can change due to growth of algae on the skin.
Dugongs will sometimes ‘stand’ on their tails with their heads out of the water
As soon as a baby Dugong is born, the mother pushes it to the surface so that it can take a breath of air.
!!Thank you for Listening!!