Download or read book Aerial Surveys of Sea Otters in the Northwestern Gulf of Alaska and Southeastern Bering Sea written by John J. Brueggeman and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Supplemental Proposal for Investigations of Sea Otters in the Northwestern Gulf of Alaska and Southeastern Bering Sea written by Envirosphere Company and published by . This book was released on 1985 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The purpose of the proposed project is to determine the seasonal changes in the distribution and relative abundance of sea otter populations along the northern and southern sides of the Alaska Peninsula and Fox Islands. The information gained from this project will be used for OCS oil and gas leasing decisions concerning the North Aleutian Shelf, St. George, and Shumagin planning areas"--Introd.
Download or read book Oregon Washington Marine Mammal Seabird Surveys written by and published by . This book was released on 1990 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sea Otter Symposium written by David Jonathan Cooper and published by . This book was released on 1990 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Gulf of Alaska Cook Inlet and North Aleutian Basin Information Update Meeting written by Laurie E. Jarvela and published by . This book was released on 1989 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Sea Otter Enhydra Lutris written by Marianne Riedman and published by . This book was released on 1991 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book MMS written by and published by . This book was released on 1989 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ethology and Behavioral Ecology of Sea Otters and Polar Bears written by Randall W. Davis and published by Springer Nature. This book was released on 2021-07-03 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sea otters and polar bears are carnivorous marine mammals that still resemble their terrestrial ancestors. Compared with Cetacea (whales and dolphins), Sirenia (dugongs and manatees), and Pinnipedia (seals, sea lions, and walrus), they are less adapted for an aquatic life and the most recently evolved among marine mammals. Sea otters are amphibious but seldom come ashore, and polar bears primarily occur on sea ice or along the shore. When at sea, both species spend most of their time swimming at the surface or making short, shallow dives when foraging or pursuing prey. Indeed, polar bears rarely pursue seals in water. Nevertheless, polar bears are powerful swimmers and will stalk seals from the water. As with many other large carnivores, they are solitary hunters. Although sea otters are gregarious and form aggregations at sea called rafts, they are primarily asocial. Except during mating, the principal interaction among sea otters occurs between a female and offspring during the six-month dependency period. In large carnivores (e.g., wolves and lions) that feed on ungulates, sociality and cooperation are favored because of the need to capture large prey and defend carcasses. Polar bears, which are the largest terrestrial carnivore, are solitary hunters of seals and are neither gregarious nor social. Males and females briefly associate during courtship and mating. During this time, males aggressively compete for females. At other times, males generally avoid each other except for aggregations of males that form while summering on land, and females with cubs avoid males, which are known for infanticide. As with sea otters, the interaction of polar bears outside of mating occurs between a female and her offspring during the 2-3 year dependency period. This interaction is critically important when altricial cubs are born in the winter den. This book provides new insight into the ethology and behavioral ecology of sea otters and polar bears. Each chapter reviews the discoveries of previous studies and integrates recent research using new techniques and technology. The authors also address historic and current anthropogenic challenges for their survival as climate change alters entire marine ecosystems.
Download or read book Outer continental shelf natural gas and oil resource management comprehensive program 1992 1997 written by United States. Minerals Management Service and published by . This book was released on 1991 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Sea Otter Enhydra Lutris written by Marianne Riedman and published by . This book was released on 1990 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: A current review of the biology, ecology, and behavior of the sea otter (Enhydra lutris). Emphasis is placed on the populations and habitat in central California but results of studies in Alaska, Canada, and the Soviet Union are also covered. Management and conservation problems such as conflicts with shellfisheries and concerns about oil pollution are also touched on.
Download or read book Sea Otter Surveys of Yakutat Bay and Adjacent Gulf of Alaska Coastal Areas written by Angela Maria Doroff and published by . This book was released on 1998 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerial surveys were conducted in August of 1995 and 1996 to determine the distribution of sea otters along the outer Gulf of Alaska coast from Cape Hinchinbrook to Cape Spencer and to determine the abundance of sea otters within Yakutat Bay. Date were entered into a Paradox database and exported to a GIS system for plotting geographic distributions using ArcView.
Download or read book OCS Outer Continental Shelf Comprehensive Gas and Oil Resources Management Program 1992 1997 written by and published by . This book was released on 1991 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Sea Otter in the Eastern Pacific Ocean written by Karl W. Kenyon and published by . This book was released on 1969 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Population Model for Alaska Peninsula Sea Otters written by Lester Lee Eberhardt and published by . This book was released on 1988 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The present study was conducted to provide a basis for assessing risks of oil spills to sea otter populations along the Alaska Peninsula. The principal efforts were devoted to analyzing the available data on population dynamics ... A simplified model for use with Alaska Peninsula sea otter populations was devised and implemented in a 'spreadsheet' format"--Page ix
Download or read book Current Research Profile for Alaska written by and published by . This book was released on 1985 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerial Survey of Sea Otters and Other Marine Mammals Alaska Peninsula and Aleutian Islands 19 April to 9 May 1965 written by Karl W. Kenyon and published by . This book was released on 1965 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Patterns of Genetic Variability in Sea Otters After Severe Population Subdivision and Reduction written by Lisa Mignon Rotterman and published by . This book was released on 1992 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
