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Explore the world of marine mammals, their adaptations, and the importance of marine conservation. Learn about different species like seals, whales, and dolphins, and how to prevent threats to their survival in our oceans.
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Seals, Whales and Dolphins Ecology, classification and threats.
What is a Marine Biologist? What do Marine Biologists do?
Today! • Who we are - DONE • What is a mammal? • Classification of marine mammals • Adaptations for surviving in the ocean • Marine Mammal survey techniques • Why survey marine mammals – conservation? • Your marine conservation pledges
Polar oceans Coral reef Marine habitats Rocky Shores Deep sea oceans Open oceans
Defining Mammals All Mammals have the following: • Warm blooded • Give birth to live offspring • Hair • Feed their young milk • Breath air/have lungs
Classifying Mysticete Baleen is used to filter the water for krill and plankton like a comb, Whales can passively filter 2000-2500kg of food per day
Classifying Odontocete Jaws are used to bite into food and prey, They are useful for hunting specific prey
Classifying Pinnipeds Fin footed mammals • Seals • Sea Lions • Walruses
Classifying The Others! • Polar Bears • Manatees & Dugongs • Sea Otters • Humans?
Classifying The Others! • Polar Bears • Manatees & Dugongs • Sea Otters • Humans?
Adaptations How are Marine Mammals adapted to their environment? • Fins instead of limbs • Blowhole (whales/dolphins) • Voluntary breathers • Blubber • Large oxygen storage (hold breath longer) • Strong dive response (slow heart rate)
Marine Conservation Issues • Marine Pollution • Over fishing • Endangered species • Climate change • Noise pollution In groups – think of how WE can help
Preventing Threats Possible ways to prevent threats are: • Proper disposal of waste • Bins & Toilet! • Eating wide variety of fish • Reduce overfishing • Reduce carbon emissions (eg. walk & cycle) • Use eco-products in our home
Pledge Think of a promise you can make to help reduce the threats towards Marine Mammals YOU can make it happen in 2014!