PPT-Marine Mammals of the Southern Ocean

Southern Ocean accounts for only 10 of worlds oceans Supports gt50 of worlds marine mammal biomass but low species diversity Species reliant on SO for habitat include Six species of pinnipeds. Know the defining characteristics of mammals.. Classify different types of marine mammals. Relate physiological adaptation of marine mammals to their environment. Marine Mammals. vocabulary. Mammary glands. What is a Mammal?. Mammals have a 4 chambered heart.. Mammals are warm-blooded.. They have hair/fur.. Have mammary glands.. Give birth to live young.. Pinnepeds. Pinnepeds are. . marine mammals that have flippers and blubber, that need to breed on land. . Vertebrates. 350 m.y.a. vertebrates invaded land. Decendents of bony fish . Land vertebrates had to adapt to harsher conditions on shore. Tetrapods had to develop lungs that allowed for absorption of oxygen directly from air. . Shortwave Climate Feedbacks . Jen Kay. University of Colorado at Boulder. Why Southern Ocean. Shortwave Feedbacks?. C. loud feedbacks . in idealized 2xCO. 2. . experiments. Gettelman. , Kay, and Shell . An Taisce. . April 2013. Ocean Acidification. Even if continuing levels of CO2 were not an issue in generating climate change, its impact on ocean acidification would require the same level of international action to reduce and cap emissions to scientifically acceptable limits.. Eric Schulz, CAWCR, BoM. The Centre for Australian Weather and Climate Research. . A partnership between CSIRO and the Bureau of Meteorology. Motivation. The Southern Ocean is large (22% of world ocean) and is expected to play a significant role in the global climate system. What does good note taking and rewriting look like?. Dugongs,. or sea cows as they are sometimes called, are marine mammals. . They can grow to about three metres in length and weigh as much as 400 kilograms. They are the only marine mammals in Australia that live mainly on plants. The name sea cow refers to the fact that they graze on the seagrasses, which form meadows in sheltered coastal waters.. Sunlight and. photosynthesis. Abyssal plain. Marine life receives a gradient of light from the surface. . through the photic zone, much absorbed. Sea ice complicates this in winter, reduces light penetration. Chapter 5 Topics. Sediments Vary Greatly in Appearance. Sediments May Be Classified by Particle Size. Sediments May Be Classified by Source. Neritic Sediments Overlie Continental Margins. Pelagic Sediments Vary in Composition and Thickness. Sectoral. . Business. Leadership . Alliance. Smart Ocean / Smart Industries:. Industry . Leadership & Collaboration . In Data Collection and Sharing. Paul Holthus . CEO. World Ocean Council. Eduardo Infante, AOBAC, Chile. History of the Fishery. The Chilean toothfish fishery goes back to the late 80´s, but it was on the 90´s that a commercial fishery was developed. . The decrease on the quotas of Austral Hake make the longliner fleet to look for alternative species.. Gregg Thomas. Indiana University. SMBE 2014. Convergent evolution is observed at the phenotypic level. Porcupine. (. Rodentia. ). Echidna. (. Monotremata. ). Hedgehog. (. Erinaceomorpha. ). 2. Predictable Evolution. Vertebrates. Warm blooded. Breath through lungs. Live birth. Mammary glands. Intelligent (Large brains). Hair & Different shapes and sizes of teeth. Marine mammals.  are aquatic mammals that rely on the ocean and other marine ecosystems for their existence. They include animals such as . One type of animal that made a successful and complete transition from land to water in the course of its evolution is the whale. .. . The According to the fossil record, about 50 million years ago some terrestrial mammals began to make the transition from a life on land to a life in the sea. .