Download or read book Evolution of Marine Coastal Ecosystems under the Pressure of Global Changes written by Hubert-Jean Ceccaldi and published by Springer Nature. This book was released on 2020-06-15 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coastal and estuarine environments at the interface of terrestrial and marine areas are among the most productive in the world. However, since the beginning of the industrial era, these ecosystems have been subjected to strong anthropogenic pressures intensified from the second half of the 20th century, when there was a marked acceleration in the warming (climate change) of the continents, particularly at high latitudes. Coastal ecosystems are highly vulnerable to alteration of their physical, chemical and biological characteristics (marine intrusion, acidification of marine environments, changes in ecosystems, evolution and artificialization of the coastline, etc.).In contact with heavily populated areas, these environments are often the receptacle of a lot of chemical and biological pollution sources that significantly diminish their resilience. In this context of accelerated evolution and degradation of these areas important for food security of many populations around the world, it is necessary to better identify the factors of pressure and understand, at different scales of observation, their effects and impacts on the biodiversity and on the socio-eco-systems, in order to determine the degree of vulnerability of these coastal ecosystems and the risks they face. A transdisciplinary and integrated approach is required to prevent risks. Within this framework, operational coastal oceanography occupies an important place but also the implementation of a true socio-eco-system approach in order to set up an environmentally friendly development.

Download or read book Marine Fishes of Arctic Canada written by Brian W. Coad and published by University of Toronto Press. This book was released on 2018-01-01 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine Fishes of Arctic Canada is an accessible and up-to-date study on the diverse marine fish population existing in Canadian waters.

Download or read book A New Island Biogeography of the Sea of Cort es written by Ted J. Case and published by Oxford University Press. This book was released on 2002-11-21 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated and expanded A New Island Biogeography of the Sea of Cort'es, first published nearly 20 years ago, integrates new and broader studies encompassing more taxa and more complete island coverage. The present synthesis provides a basis for further research and exploration in upcoming years of the biologically fascinating Sea of Cort'es region. The Gulf region is increasingly being exploited, for its natural resources by way of marine fisheries, and for its stunning natural beauty by way of a burgeoning tourism industry. Further, the region's human population is increasing apace. It is appropriate, therefore, that this volume discusses these evolving circumstances, and the efforts of the Mexican government to regulate and manage them. The new Biogeography includes a section on the conservation issues in the Sea of Cort'es, past accomplishments and conservation needs as yet outstanding. This book should be of strong interest to conservation biologists, ecologists, and evolutionary biologists more generally.

Download or read book The Gulf of California written by Richard C. Brusca and published by University of Arizona Press. This book was released on 2010-04-15 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Few places in the world can claim such a diversity of species as the Gulf of California (Sea of Cortez), with its 6,000 recorded animal species estimated to be half the number actually living in its waters. So rich are the Gulf's water that over a half-million tons of seafood are taken from them annuallyÑand this figure does not count the wasted by-catch, which would triple or quadruple that tonnage. This timely book provides a benchmark for understanding the Gulf's extraordinary diversity, how it is threatened, and in what ways it isÑor should beÑprotected. In spite of its dazzling richness, most of the Gulf's coastline now harbors but a pale shadow of the diversity that existed just a half-century ago. Recommendations based on sound, careful science must guide Mexico in moving forward to protect the Gulf of California. This edited volume contains contributions by twenty-four Gulf of California experts, from both sides of the U.S.-Mexico border. From the origins of the Gulf to its physical and chemical characteristics, from urgently needed conservation alternatives for fisheries and the entire Gulf ecosystem to information about its invertebrates, fishes, cetaceans, and sea turtles, this thought-provoking book provides new insights and clear paths to achieve sustainable use solidly based on robust science. The interdisciplinary, international cooperation involved in creating this much-needed collection provides a model for achieving success in answering critically important questions about a precious but rapidly disappearing ecological treasure.

Download or read book Population Assessment of Atlantic Walrus Odobenus Rosmarus Rosmarus L written by Erik W.. Born and published by . This book was released on 1995 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Summarizes available information on distribution, numbers and exploitation of Atlantic walruses (Odobenus rosmarus rosmarus L.) for an assessment of their present status. The effects on walruses of various human activities other than hunting (e.g. disturbance, pollution, fishery interactions) are also evaluated."--Page 6.

Download or read book Voices from Hudson Bay written by Flora Beardy and published by McGill-Queen's Press - MQUP. This book was released on 1996 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Voices from Hudson Bay Cree elders recall the daily lives and experiences of the men and women who lived and worked at the Hudson's Bay Company post at York Factory in Manitoba. Their stories, their memories of family, community, and daily life, define their past and provide insights into a way of life that has largely disappeared in northern Canada.

Download or read book Canadian Inland Seas written by I.P. Martini and published by Elsevier. This book was released on 2011-09-22 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: The various chapters of this book have been written by researchers who are still working in the Canadian Inland Seas region. The chapters synthesize what is known about these seas, yet much still is to be learnt. It is hoped that this collection of information will serve as a springboard for future, much needed, studies in this fascinating, diverse region, and will stimulate comparative analyses with other subarctic and arctic basins of the world. The Canadian Inland Seas are the only remnants, albeit cold, of the ancient cratonic marine basins which occupied central North America throughout the Paleozoic and part of the Mesozoic. Precambrian rocks and gently dipping Paleozoic sedimentary rocks underlie the seas. The area is also close to the centers of Pleistocene glaciations. The coastal areas represent an emerged landscape of the post-glacial Tyrrell sea, as the region has been isostatically uplifted to about 350 meters since glacial times. A total of 56 fish species inhabit Hudson Bay and James Bay. Seals, whales and one of the largest and southernmost populations of polar bears inhabit the seas as well. The coastal areas are important habitats for migratory bird populations, some of which migrate from as far away as Southern Argentina.The ostic environment has preserved these regions relatively unchanged by man, with only a major harbour at Churchill, Manitoba, which is active for part of the year, and a second large, rail-terminal settlement in the south at Moosonee, Ontario. A few, small, native Indian and Inuit villages dot the coasts. The seas are being affected indirectly by the damming of rivers for the generation of hydroelectric power, and by drainage diversions towards the man-made reservoirs. A major project is being completed in Quebec east of James Bay, but other rivers in Ontario and Manitoba have been dammed as well. Undoubtedly freshwater is one of the more important resources of the area, however its exploitation needs careful thought because of the possible long-range effects on the environment, particularly the coastal marshes, which sustain much of the eastern American intercontinental migratory avifauna. Other resources occur in the regions, primarily minerals and perhaps petroleum. For the most part however, such resources remain to be discovered.

Download or read book Turmoil and Triumph written by Ian Bickle and published by Calgary : Detselig Enterprises Limited. This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a story of courage and adventure. It reveals how workers struggled through long days, enduring extreme weather, pests, and the often poor food and housing, as they built a railway through the difficult terrain of Canada's northern wilderness to Churchill, Manitoba. Author Ian Bickle provides rare insight into the survey parties who explored this region of ice, snow, swamp and muskeg. He gives a historical account of the organizations, such as the RNWMP (later RCMP), that helped bring order and discipline to the rugged life on the line, and Frontier College teachers, who assisted the workers in their labors and their education. The men who surveyed the Bay route, the workers who built it and the people who keep it alive have raised the level of human achievement in Canada. Their story is an important and colorful part of Canadian history.

Download or read book Surficial Geology of Coats and Mansel Islands Northwest Territories written by J. M. Aylsworth and published by Geological Survey of Canada. This book was released on 1991 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: This examination of the geology of Coats and Mansel Islands, in the northeast part of Hudson Bay, Northwest Territories, describes landforms resulting from glaciation by the Laurentide Ice Sheet and the results of deglaciation.

Download or read book Effects of Pollutants at the Ecosystem Level written by International Council of Scientific Unions. Scientific Committee on Problems of the Environment and published by . This book was released on 1984-06-06 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surveys current knowledge of the effects of man-made chemicals and other disturbances on the ecosystem, focusing on the effects on the structure and function of the system rather than on individual organisms or populations. Covers community structure, diversity, nutrient cycling, litter decomposition, and more. Examines the question of detectability of change and includes a number of case histories of aquatic, marine, and terrestrial systems.

Download or read book Charrs written by E.K. Balon and published by Springer. This book was released on 1980-04-30 with total page 948 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synopsis of the Parasites of Fishes of Canada written by T. E. McDonald and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information on the parasites of Canadian fishes published between the years 1978 and 1993, inclusive, is assembled as Parasite-Host and Host-Parasite lists. The 925 named species of parasites are reported on 292 species of Canadian fishes. The Parasite-Host list is organized on a taxonomic basis and identifies for each species its habitat (freshwater, marine, or brackish), site of occurence in its host(s), species host(s), known geographic distribution within Canadian waters, and the published source for each host and localty record. The Host-Parasite list is organized according to the taxonomy of the hosts and is accompanied by data on the known Canadian distribution of the parasites. For both the Parasite-Host and Host-Parasite lists, a "Remarks" section containing explanatory comments concerning systematics, nomenclature, and notes on other specific items is included as warranted. In addition to listing the cited references, as supplentary list of references is included to cover other Canadian literature on fish parasites.

Download or read book The Eskimo of Baffin Land and Hudson Bay written by Franz Boas and published by . This book was released on 1901 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Economic Minerals of Canada written by Geological Survey of Canada and published by Canada : s.n.. This book was released on 1900 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Northern Protected Areas and Wilderness written by Juri Peepre and published by Whitehorse : Canadian Parks and Wilderness Society, Yukon Chapter. This book was released on 1994 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Arctic Heritage written by James Gordon Nelson and published by . This book was released on 1987 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers from the symposium divided into three broad categories: 1) The natural realm, 2) Land use and conservation, and 3) National parks, and protected areas. Also includes an evaluation of the Report of the Task Force on Northern Conservation and a paper on 'The Arctic as a Regional Sea' by J.G. Nelson and R.D. Needham.

Download or read book Assessment of the Arctic Marine Environment written by Donald Wilbur Hood and published by Fairbanks : Institute of Marine Science, University of Alaska. This book was released on 1976 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on topics selected from a symposium held in conjunction with the Third International Conference on Port and Ocean Engineering under Arctic conditions (PDAC-75).