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Table of Contents

Table of Contents. Title: Chapter 17 Nekton: Free Swimmers of the Sea; 17.1 Mammals Page #: 85 Date: 3/12/13. Objective. Students will be able to discuss the international regulation and history of whaling. Word of the Day.

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Table of Contents

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  1. Table of Contents Title: Chapter 17 Nekton: Free Swimmers of the Sea; 17.1 Mammals Page #: 85 Date: 3/12/13

  2. Objective • Students will be able to discuss the international regulation and history of whaling.

  3. Word of the Day • Mammal: Any of various warm-blooded vertebrate animals of the class Mammalia, including humans, characterized by a covering of hair on the skin and, in the female, milk-producing mammary glands for nourishing the young.

  4. Nekton Organisms that swim in the sea. Can be warm blooded or cold blooded. Nekton

  5. Mammals p. 415 Warm blooded - “homeotherms.” Breath air. Streamlined shapes for diving. Live young (not eggs.) Nursed by mother. Mammals

  6. Whales p. 415 Cetaceans Can have teeth (toothed whales.) Can have baleen: Boney filter for capturing krill. May migrate short or long distances. Mammals

  7. Whaling p. 418 Great Whales: Blue Sperm Humpback Finback Sei Right Mammals

  8. Great Whales

  9. Whaling p. 418 Whales are hunted for oil baleen and blubber. 800 - 1000 A.D.: Earliest European whaling by the Norse. 1700s & 1800s: Hand-held harpoons. 1868: Harpoon gun invented. 1925: Factory ships allow whales to be processed at sea. 1930s: Whales going extinct. Blues whales at less than 4% of their original populations. Mammals

  10. Basque (French and Spanish) whalers.

  11. Whaling p. 418 1946: International Whaling Commission (IWC) established by Australia, Argentina, Britain, Canada, Denmark, France, Iceland, Japan, Mexico, New Zealand, Norway, Panama, South Africa, Soviet Union and U.S. Killing of Blues, Grays, Bowheads, Right and cows with calves stopped. Opening and closing dates and minimum size data established. Mammals

  12. Whaling p. 418 1979: IWC moratorium on all whaling in Indian Ocean. Use of factory ships outlawed. Whaling continues from land bases in Antarctica. IWC moratorium on all commercial whaling except dolphins and porpoises. Mammals

  13. Whaling p. 418 1993: Norway resumes whaling. Hunts Minke whales under its own catch limits. 1994: IWC creates whale sanctuary below 55º S in Antarctic waters. Japan votes against it. 1999: Iceland leaves IWC and begins whaling. 2000: Japan begins “scientific” whale hunt in Antarctic waters (Whale Wars.) Mammals

  14. IWC Whale Sanctuaries

  15. Whaling p. 418 p. 419 IWC allows whaling by native peoples of Alaska, Greenland, former Soviet Union. Whale populations recover slowly: Its hard to find mates. Noise interference by ships. Krill harvesting. Pollution. Mammals

  16. Page 193 Issue #14 Lifestyles of the Large and Blubbery: Of Blue Whales and Krill Classwork

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