Download or read book The Effect of Boat Activity on the Behaviour of Killer Whales Orcinus Orca Off San Juan Island USA written by Susannah Charlesworth and published by . This book was released on 2004 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Killer Whales written by John K. B. Ford and published by UBC Press. This book was released on 1996 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of this best-selling book presents updated results ofover twenty-five years of killer whale research in British Columbia andWashington. Intended for both whale enthusiasts and researchers, itcontains the latest information on killer whale natural history andpresents a catalogue of close to 300 photographs of"resident" killer whales as well as a genealogical registrythat enables readers to identify individual killer whales and theirfamily groups. The technique of photographing the dorsal fin and greysaddle patch of whales has revolutionized the study of killer whales,allowing researchers to follow individuals over the course of manyyears.
Download or read book Southern Resident Killer Whales Orcinus Orca written by Deborah A. Giles and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation concerns the southern resident killer whales (Orcinus orca), a genetically isolated population of fish-eating killer whales that frequent the international waters of the Salish Sea between the United States and Canada in the eastern Pacific Ocean. Research was conducted from June 1 to October 31, 2007 and from June 7 to October 31, 2008, between geographic coordinates: 48°12' to 49° N latitude by 122°43' to 123°50° W longitude. The southern resident killer whale population has experienced multiple fluctuations since population surveys were initiated by the Center for Whale Research (CWR) in the mid 1970's. In November 2005, the U.S. National Oceanic and Atmospheric Administration's National Marine Fisheries Service (NMFS), Northwest Regional Office listed the southern resident killer whales as an endangered distinct population segment of the species Orcinus orca under the United States Endangered Species Act (ESA). Several risk factors including reductions in the quantity and quality of prey (salmon), exposure to persistent toxins, and disturbance from vessel presence and associated noise were identified as contributing to the decline of this already small population. With the listing under the ESA, critical habitat was designated in the inland waters around the U.S. San Juan Islands, Washington State and the Canadian Gulf Islands, British Columbia, Canada. Chapter one, Managing Vessel-based Killer Whale Watching: A Critical Assessment of the Evolution from Voluntary Guidelines to Regulations in the Salish Sea, provides background on the southern resident killer whales and the robust international whale watching industry in the region. This chapter also provides a detailed history of local, state, federal and international vessel laws and guidelines for watching whales in the Salish Sea. Chapter two, Non-invasive methods to study southern resident killer whales and vessel compliance with regulations, describes a novel equipment package, consisting of a differential GPS integrated with a digital compass and laser rangefinder that allowed me to collect accurate geo-referenced locations and behavioral data on whales and vessels throughout the whale's critical habitat. To improve both the spatial and temporal data on whale-vessel interactions, the information collected with this equipment was used to assess vessel compliance with local, state and federal laws and the regionally accepted best-practices Be Whale Wise Guidelines. Chapter three, The effects of vessels on group cohesion and behavior of southern resident killer whales (Orcinus orca), discusses research investigating changes in killer whale group cohesion in response to vessel density, distance and mode of operation. Future cetacean studies would benefit from using the equipment and methods presented here, especially in areas that are not conducive to land-based theodolite collected data.
Download or read book Killer Whales written by John K. B. Ford and published by University of Washington Press. This book was released on 1994 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 where to best watch killer whales; and a catalog of some 300 photographs of "resident" killer whales which can be used to identify individuals and their family groups. 10.75x9" Annotation c. by Book News, Inc., Portland, Or.
Download or read book Final Environmental Impact Statement written by United States. Minerals Management Service. Pacific OCS Region and published by . This book was released on 1983 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cetacean Societies written by Janet Mann and published by University of Chicago Press. This book was released on 2000-06 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Part review, part testament to extraordinary dedication, and part call to get involved, Cetacean Societies highlights the achievements of behavioral ecologists inspired by the challenges of cetaceans and committed to the exploration of a new world."—from the preface by Richard Wrangham Long-lived, slow to reproduce, and often hidden beneath the water's surface, whales and dolphins (cetaceans) have remained elusive subjects for scientific study even though they have fascinated humans for centuries. Until recently, much of what we knew about cetaceans came from commercial sources such as whalers and trainers for dolphin acts. Innovative research methods and persistent efforts, however, have begun to penetrate the depths to reveal tantalizing glimpses of the lives of these mammals in their natural habitats. Cetacean Societies presents the first comprehensive synthesis and review of these new studies. Groups of chapters focus on the history of cetacean behavioral research and methodology; state-of-the-art reviews of information on four of the most-studied species: bottlenose dolphins, killer whales, sperm whales, and humpback whales; and summaries of major topics, including group living, male and female reproductive strategies, communication, and conservation drawn from comparative research on a wide range of species. Written by some of the world's leading cetacean scientists, this landmark volume will benefit not just students of cetology but also researchers in other areas of behavioral and conservation ecology as well as anyone with a serious interest in the world of whales and dolphins. Contributors are Robin Baird, Phillip Clapham, Jenny Christal, Richard Connor, Janet Mann, Andrew Read, Randall Reeves, Amy Samuels, Peter Tyack, Linda Weilgart, Hal Whitehead, Randall S. Wells, and Richard Wrangham.
Download or read book Orcas of the Gulf written by Gerard Gormley and published by iUniverse. This book was released on 2000-08 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Book Description: 揙rcas of the Gulf will be a pleasure to anyone who wants to explore the realities of nature. Mr. Gormley's awe and respect for these magnificent whales is shared with us as a small pod of orca pass through the familiar waters off New England. We find ourselves enveloped in the interlocked, interwoven spectrum of the sea; everyday life to the orca, white water drama and magical beauty to Man. Much seems incredible, impossible, even mythical, yet the author has included every available bit of science in his exciting and educational narrative. He takes us a few steps farther than science has yet gone with common sense and realism, challenging the scientists to discover the full world of the orca. His narrative theories on perception, communication, pod society and chillingly realistic assessment of human impact are most interesting. The values and perceptions expressed in this work are not human, but they may just be the orca's, and we can all learn from that.?/p> -William W. Rossiter, Vice President Cetacean Society International Author bio: Gerard Gormley lives in Manchester-by-the-Sea, Massachusetts, where he studies sea life, especially cetaceans, as an avocation. His previous natural history, A Dolphin Summer, won broad critical acclaim for its artistic and scientific merit. His third nature book, about humpback whales, is in progress. Formerly a submariner and science writer, Mr. Gormley supplements his writing income by selling collectible books over the Internet.
Download or read book Killer Whales written by John K. B. Ford and published by . This book was released on 2000 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of this best-selling book presents updated results ofover twenty-five years of killer whale research in British Columbia andWashington. Intended for both whale enthusiasts and researchers, itcontains the latest information on killer whale natural history andpresents a catalogue of close to 300 photographs of"resident" killer whales as well as a genealogical registrythat enables readers to identify individual killer whales and theirfamily groups. The technique of photographing the dorsal fin and greysaddle patch of whales has revolutionized the study of killer whales,allowing researchers to follow individuals over the course of manyyears.
Download or read book Wildlife Research written by and published by . This book was released on 2011 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Sea Less Traveled written by Patrick Pillsbury and published by Millennial Mind Publishing. This book was released on 2004-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Join Patrick and the Bon Accord on this introspective journey through the San Juan Islands and ponder the questions that arise while cruising through this urban wilderness. Patrick explores the inter-connectedness of all things in Northwest Island life -- from the forests that provided the planks for the Bon Accord, to the salmon that nourished those forests and the future of the salmon runs that nourish the Orcas -- leading us to the hard questions about the impacts of an ever-increasing and consumptive human population on the land, waters, and whales we love so dearly. An honest, sincere look at the issues and threats our islands and whales face each day, and the importance of education about the fragility of this entire ecosystem if we want to preserve it for future generations." -- Susan Berta, Orca Network
Download or read book Killer Whales written by Sara Heimlich-Boran and published by . This book was released on 1994 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Killer whales are supreme predators of the world's oceans. Once deemed bloodthirsty killers, these voracious creatures have been at the most dramatic reversals of public opinion in human history. This book explores the ecology and behaviour of killer whales and outlines what can be done to conserve one of the legends of the deep.
Download or read book Gone Whaling written by Douglas Hand and published by . This book was released on 1996 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the darkened halls of the American Museum of Natural History in New York City, Douglas Hand encountered a killer whale with the head of a man emerging from the blowhole. This puzzling and haunting specter was carved on a worn cedar totem pole of the Haida, Native Americans of the Northwest coast. What indigenous wisdom inspired orca and human to be wrought together in wood? Indeed, where does one species begin and the other end? Gone Whaling is the exquisitely rendered account of a journey to the waters of the Pacific Northwest to find answers to those questions as well as to track down the essence of orca, that wildest of animals. The quest takes the author first to the Vancouver Aquarium, where he encounters orcas in tanks and scientists who blur the lines between research and showmanship. Moving out to the San Juan Islands, he locates Ken Balcolm, marine biologist and orca census-taker, who deciphers the familial dynamics of the whales by tracking their far migrations. From there, he is led to the controversial researcher Paul Spong - known as the "patron saint of the whales" - who is mapping the clicks and squeaks the orcas make as they travel by his home on remote Hansen Island. But science can go only so far in providing a real understanding of the mystery of these creatures of the sea, so Douglas Hand turns to the last remaining Haida totem carvers to explain what orca means. In the end, he is inspired to take on the dangerous waters himself in a one-man kayak to encounter his own orca. Gone Whaling is rich with natural history and human stories. The mysterious and deeply complex behavior of orcas is described with crystalline detail and style. The inquiry itself is infusedwith the author's boundless curiosity and tempered with his wry humor. This luminous and confident book appeals to the part of us all that has pondered the deep rift between humans and other creatures, between the modern and the primitive. There is an old Haida belief that a good life is rewarded by death and rebirth as an orca. Therefore, you should treat the orca well that swims close to shore, for it may be your ancestor. This special book probes the boundary that separates and binds humans to killer whales, and humans to the natural order.
Download or read book A Model based Approach Investigating Killer Whale Orcinus Orca Exposure to Marine Vessel Engine Exhaust written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The summer habitat of the southern resident population of killer whales (Orcinus orca) in British Columbia and Washington experiences heavy traffic by vessels involved in whale-watching, sport fishing, other recreational activities, and shipping. Behavioural changes caused by vessel proximity and the impacts of vessel noise have been previously documented, but this is the first study to assess direct impacts of air pollutant emissions from vessel traffic. The concentration and composition of air pollutants from whale-watching vessels that southern resident killer whales are exposed to during the peak tourist season were estimated, as were the health impacts of the exposure. Specifically, the study a) estimated the output of airborne pollutants from the whale-watching fleet based on emissions data from regulatory agencies, b) estimated the vertical dispersion of such pollutants based on air stability data collected in the field and from climatological sources, c) used a dispersion model incorporating data on whale, vessel, and atmospheric behaviour to estimate exposure, and d) examined the likely physiological consequences of this exposure based on allometric extrapolation of data from other mammalian species. The results of these exercises indicate that the current whale-watching guidelines are usually effective in limiting pollutant exposure to levels just at or below those at which adverse health effects would be expected in killer whales. However, under worst-case conditions and even under certain average-case conditions the pollutant levels are much higher than those predicted to cause adverse health effects. With this information, recommendations are made for further studies that would fill in missing information, and increase confidence in the models, and the predicted impact on the southern resident killer whales. Recommendations for limiting killer whale exposure to air pollutants are also provided.
Download or read book The Effects of Anthropogenic Noise on the Vocal Behavior of Southern Resident Killer Whales Orcinus Orca written by Jennifer Beissinger Tennessen and published by . This book was released on 2009 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Behavioral Biology of Killer Whales written by Barbara C. Kirkevold and published by . This book was released on 1986 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transients written by John K.B. Ford and published by UBC Press. This book was released on 2011-11-01 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on transient killer whales. Enigmatic and elusive, these mammal-hunting whales are difficult animals to study. They travel in small groups, often moving unpredictably, which makes them less conspicuous than the larger resident pods. For these and other reasons, our understanding of the life history and ecology of transient killer whales has lagged behind that of residents. Transients contains the latest information on the natural history of transient killer whales, including their feeding habits, social lives, and distribution patterns. The catalogue section contains photographs of and notes on over 200 individual whales. Numerous sidebars contain interesting observations on encounters with transients as well as information on how and where to best watch them.
Download or read book The Whale Called Killer written by Erich Hoyt and published by Dutton Adult. This book was released on 1981 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
