Download or read book Report of the Alaska Region and Alaska Fisheries Science Center Northern Fur Seal Tagging and Census Workshop written by Sharon Ruth Melin and published by . This book was released on 2006 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The northern fur seal is listed as 'depleted' in U.S. waters under The Marine Mammal Protection Act of 1972. Under the Marine Mammal Protection Act, a conservation plan is required for all depleted species to assist management and research agencies in recovering the population. In 1993, the Northern Fur Seal Conservation Plan was adopted and has guided northern fur seal research over the past decade. In 2005, the conservation plan was reviewed and updated to reflect the current trends in the population and new biological information. One recommendation of the revised conservation plan was to gather current demographic information on northern fur seal populations. This workshop was convened to outline an approach for a robust marking program that can provide the demographic data necessary to build population models that are needed to assist management in the recovery process for the northern fur seal population. The working group evaluated permanent marking methods including various tagging options, tattoos, hot branding, freeze branding, radio frequency identification tags (RFIDs), natural markings, and new technologies to uniquely identify northern fur seals. The workshop participants also discussed study designs and statistical methods to obtain and analyze demographic data. In addition, the working group examined the current methods of estimating abundance based on direct counts and shear-sampling mark-recapture of pups and discussed alternative methods of population assessment. The working group agreed that a combination of longitudinal and cross-sectional permanent marking of live animals would provide a complete dataset of population parameters for demographic models. The working group determined that in the near-term, external flipper tags are the most feasible method for marking large numbers of northern fur seals. However, tag loss remains a significant problem with the current tags available and a new tag needs to be developed. The working group acknowledged that the future of unique identification of fur seals lies in the development of electronic tags and remote data recorders. This technology is not yet applicable to the unique habitat, life history, distribution, and environmental conditions of pinniped species. The working group discussed the need to encourage manufacturers to develop an electronic tagging system that would be applicable to the needs of the fur seal and sea lion research community. The working group concluded that the current census methods of shear-sampling and direct counts of pups were sufficient but alternative methods for estimating abundance (e.g., medium format photography or infra-red imaging) may be useful in combination with the current methods to refine estimates."--Executive summary.
Download or read book Report of the Alaska Region and Alaska Fisheries Science Center Northern Fur Seal Tagging and Census Workshop written by Alaska Fisheries Science Center Nationa and published by BiblioGov. This book was released on 2013-06 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 1970's the National Oceanic and Atmospheric Administration (NOAA) was made to manage our oceanic and atmospheric resources. The Alaska Fisheries Science Center is the research branch for marine life and coastal oceans off parts of the U.S. west coast and Alaska. This includes the Eastern Bering Sea where some the worlds most important commercial fishing takes place. Their mission is to develop and maintain scientific exploration to help understand and manage that region's environment. Over the years there have been many reports published which discuss their findings; this is one of them.
Download or read book Steller Sea Lion and Northern Fur Seal Research written by and published by . This book was released on 2007 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Steller Sea Lion and Northern Fur Seal Research Purpose and need Alternatives Affected environment Environmental consequences National Environmental Policy Act compliance implementation and recommendations List of preparers List of agencies organizations and persons whom the draft EIS was sent References Index written by United States. National Marine Fisheries Service. Office of Protected Resources. Permits Division and published by . This book was released on 2007 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of the Workshop on the Status of Northern Fur Seals on the Pribilof Islands Alaska Held November 14 16 1983 Seattle Washington written by Charles Winsor Fowler and published by . This book was released on 1986 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Mammal Ecology and Conservation written by Ian L. Boyd and published by Oxford University Press. This book was released on 2010-08-12 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: Much of our knowledge about marine mammals is derived from a long-term and dedicated research effort that is evolving rapidly due to the introduction and invention of new methods.This book reflects the inventiveness of marine researchers as they try to find ways around the problems presented to them by these unusual and challenging animals.
Download or read book Northern Fur Seal Research Techniques Manual written by George A. Antonelis and published by . This book was released on 1992 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Population Study of the Alaska Fur seal Herd written by Karl W. Kenyon and published by . This book was released on 1954 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction. Sources and methods ; Counts and measurements of seals ; Age determination -- Components of the herd. Bulls ; Bachelors ; Pups ; Cows ; Yearlings -- Present size of the herd. Life habits ; Estimate of the size of the herd from the trend of the commercial harvest ; Estimate of the size of the herd from the trend of the harem bull count -- Appendix A. Effect of sealing on fluctuations in herd size 1786-1951 -- Appendix B. Fecundity of males -- Appendix C. Size of the average harem -- Appendix D. Age criteria for bachelor fur seals -- Appendix E. Escapement of bachelors from the commercial kill -- Appendix F. Calculations for the size of the pup class in 1947 from tag recoveries -- Appendix G. Serial photography on the Pribilofs.
Download or read book Fur Seal Investigations Pribilof Islands written by Alton Y. Roppel and published by . This book was released on 1963 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alaska Fisheries Science Center written by Alaska Fisheries Science Center Nationa and published by BiblioGov. This book was released on 2013-06 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 1970's the National Oceanic and Atmospheric Administration (NOAA) was made to manage our oceanic and atmospheric resources. The Alaska Fisheries Science Center is the research branch for marine life and coastal oceans off parts of the U.S. west coast and Alaska. This includes the Eastern Bering Sea where some the worlds most important commercial fishing takes place. Their mission is to develop and maintain scientific exploration to help understand and manage that region's environment. Over the years there have been many reports published which discuss their findings; this is one of them.
Download or read book Setting the Annual Subsistence Harvest of Northern Fur Seals on the Pribilof Islands written by and published by . This book was released on 2005 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fur Seal Investigations Pribilof Islands Alaska 1963 written by Alton Y. Roppel and published by . This book was released on 1965 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fur Seal Investigations 2012 written by J. Ward Testa and published by . This book was released on 2013 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Researchers from the Alaska Fisheries Science Center's National Marine Mammal Laboratory conduct field investigations on the population status of northern fur seals (Callorhinus ursinus) on the Pribilof Islands, Bogoslof Island in the eastern Bering Sea, and on San Miguel Island off the coast of California. This report summarizes these monitoring efforts in 2012, and presents an introduction to ongoing demographics research based on tagged animals on the Pribilof Islands that began in 2007"--Abstract.
Download or read book The Fur seal and Other Fisheries of Alaska written by United States. Congress. House. Merchant Marine and Fisheries and published by . This book was released on 1889 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Report written by Northwest and Alaska Fisheries Center (U.S.) and published by . This book was released on 1981 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fur Seal Investigations written by and published by . This book was released on 1964 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Entanglement Studies St Paul Island 1990 Juvenile Male Northern Fur Seals written by Alaska Fisheries Science Center Nationa and published by BiblioGov. This book was released on 2013-06 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 1970's the National Oceanic and Atmospheric Administration (NOAA) was made to manage our oceanic and atmospheric resources. The Alaska Fisheries Science Center is the research branch for marine life and coastal oceans off parts of the U.S. west coast and Alaska. This includes the Eastern Bering Sea where some the worlds most important commercial fishing takes place. Their mission is to develop and maintain scientific exploration to help understand and manage that region's environment. Over the years there have been many reports published which discuss their findings; this is one of them.
