Killer whales : the natural history and genealogy of Orinus orca in British Columbia and Washington
著者
書誌事項
Killer whales : the natural history and genealogy of Orinus orca in British Columbia and Washington
UBC Press , University of Washington Press, c2000
2nd ed.
- :Canada
- :USA
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注記
Bibliography: p. 102
内容説明・目次
- 巻冊次
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:USA ISBN 9780295979588
内容説明
The three authors have been studying killer whales since the 1970s, when they began photographing dorsal fins and the gray saddle patches at the base of the fins in order to identify individual whales. They present the latest information on killer whale natural history; suggestions on how, when, and
- 巻冊次
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:Canada ISBN 9780774808002
内容説明
Watching killer whales in the wild in British Columbia and Washington state has become a popular recreational activity in the last decade. Nothing quite matches the thrill of witnessing a pod of these immense creatures cutting through the waters of Johnstone Strait or listening to their strident underwater calls to each other in their own dialect. The new edition of this book presents updated results of over 25 years of killer whale research in British Columbia and Washington. Intended for both whale enthusiasts and researchers, it contains the latest information on what is known of killer whale natural history and presents a catalogue of close to 300 photographs of "resident" killer whales as well as a genealogical registry that enables readers to identify individual killer whales and their family groups. New in this edition is the latest information on the status and future prospects of west-coast killer whales - how they may be affected by declining salmon stocks, high levels of toxic chemicals in their tissues, and increasing vessel traffic and underwater noise.
Whale watchers will particularly appreciate revised suggestions and guidelines on how to view whales in the wild without disturbing them. The authors are active researchers who are widely regarded as the world's foremost authorities on killer whales.
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