Download or read book A Photographic Identification System for Bowhead Whales written by Howard W. Braham and published by . This book was released on 1983 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary of two workshops held 6-7 January 1983 at the National Marine Laboratory, Seattle, Washington and 21-23 March 1983 at Southwest Fisheries Center, National Marine Fisheries Service, La Jolla, Califoria. Both workshops focused on whether or not bowhead whales might be individually identified from visible marks.
Download or read book Methods for photographic identification of bowhead whales Balaena mysticetus written by D.J. Rugh and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Guide to the Photographic Identification of Individual Whales Based on Their Natural and Acquired Markings written by Jon Lien and published by St. John's, Nfld. : Breakwater. This book was released on 1990 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Capture recapture Estimation of Bowhead Whale Population Size Using Photo identification Data written by Cibele Queiroz Da Silva and published by . This book was released on 1999 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review of Bowhead Whale Photo identification Data to Improve Estimation of Adult Bowhead Survival Rate and Provide a Capture recapture Population Estimate written by Judith E. Zeh and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Marine Mammals written by Sam H. Ridgway and published by . This book was released on 1981 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twenty-three separate papers, each describing a single species.
Download or read book Proceedings of the Workshop Methods for the Study of Bottlenose Dolphins in the Wild written by Giuseppe Notarbartolo di Sciara and published by . This book was released on 1994 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quarterly Report written by Northwest and Alaska Fisheries Center (U.S.) and published by . This book was released on 1983 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Calving intervals of bowhead whales an analysis of photographic data written by G.W. Miller and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Mammal Assessment Program written by National Marine Mammal Laboratory (U.S.) and published by . This book was released on 1993 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evidence of Bowhead Whale Feeding Behavior from Aerial Photography written by Julie A. Mocklin and published by . This book was released on 2009 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerial photographs of the Bering-Chukchi-Beaufort population of bowhead whales (Balaena mysticetus) were analyzed to investigate their feeding habits, particularly epibenthic feeding near Barrow, Alaska. The analysis was based on mud visible on the dorsal surface of whales, resulting from feeding near the seafloor. A new photographic scoring system was developed and tested by bowhead experts, including subsistence whalers, to ensure an acceptable level of agreement on the analytical method. The tests resulted in > 93% agreement when whales were scored as muddy, and 100% when clean. Over 3,600 photographs were analyzed from 1985, 1986, and 2003-2007, including photos from surveys in spring and late summer and in both the Western and Eastern Beaufort Sea. Of all the photographs analyzed, 64% were scored as definitively muddy. In spring, ratios ranged from a low of 27% in 2003 to a high of 76% in 2004. In May of 1986 and when all four May sample sets off Barrow were combined, there was a significant difference (t-test, P
Download or read book Conservation Technology written by Serge A. Wich and published by Oxford University Press. This book was released on 2021-08-31 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The global loss of biodiversity is occurring at an unprecedented pace. Despite the considerable effort devoted to conservation science and management, we still lack even the most basic data on the distribution and density of the majority of plant and animal species, which in turn hampers our efforts to study changes over time. In addition, we often lack behavioural data from the very animals most influenced by environmental changes; this is largely due to the financial and logistical limitations associated with gathering scientific data on species that are cryptic, widely distributed, range over large areas, or negatively influenced by human presence. To overcome these limitations, conservationists are increasingly employing technology to facilitate such data collection. Innovative solutions have been driven by dramatic advances in the conservation-technology interface. The use of camera traps, acoustic sensors, satellite data, drones, and computer algorithms to analyse the large datasets collected are all becoming increasingly widespread. Although specialist books are available on some of these individual technologies, this is the first comprehensive text to describe the breadth of available technology for conservation and to evaluate its varied applications, bringing together a team of international experts using a diverse range of approaches. Conservation Technology is suitable for graduate level students, professional researchers, practitioners and field managers in the fields of ecology and conservation biology.
Download or read book Monthly Report written by Northwest and Alaska Fisheries Center (U.S.) and published by . This book was released on 1980 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of the Commission International Whaling Commission written by International Whaling Commission and published by . This book was released on 1993 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Calving intervals of bowhead whales established through photographic identifications written by D.J. Rugh and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Mammals of the World A Comprehensive Guide to Their Identification written by Thomas Allen Jefferson and published by Elsevier. This book was released on 2011-08-29 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: With coverage on all the marine mammals of the world, authors Jefferson, Webber, and Pitman have created a user-friendly guide to identify marine mammals alive in nature (at sea or on the beach), dead specimens “in hand , and also to identify marine mammals based on features of the skull. This handy guide provides marine biologists and interested lay people with detailed descriptions of diagnostic features, illustrations of external appearance, beautiful photographs, dichotomous keys, and more. Full color illustrations and vivid photographs of every living marine mammal species are incorporated, as well as comprehendible maps showing a range of information. For readers who desire further consultation, authors have included a list of literature references at the end of each species account. For an enhanced understanding of habitation, this guide also includes recognizable geographic forms described separately with colorful paintings and photographs. All of these essential tools provided make Marine Mammals of the World the most detailed and authoritative guide available! * Contains superb photographs of every species of marine mammal for accurate identification * Authors’ collective experience adds up to 80 years, and have seen nearly all of the species and distinctive geographic forms described in the guide * Provides the most detailed and anatomically accurate illustrations currently available * Special emphasis is placed on the identification of species in “problem groups, such as the beaked whales, long-beaked oceanic dolphin, and southern fur seals * Includes a detailed list of sources for more information at the back of the book.
Download or read book Gift of the Whale written by Bill Hess and published by Sasquatch Books. This book was released on 2003-08-19 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bill Hess --a noted photographer -- began his association with the Inupiat Eskimos in 1982. Eventually, he got permission to accompany them on their historic whale hunt. This book is his record, in sensitive text and almost 200 stark images, of what he experienced. Hess explores Inupiat history and traditions juxtaposed against contemporary life, never shying away from the controversial aspects of this ancient trek. Gift of the Whale is a rare contribution to Native history.
