Download or read book Zooplancton Et Eutrophisation D un Lac en Zone Tropicale written by Serge Hubert Zebaze Togouet and published by Omniscriptum. This book was released on 2011 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: La connaissance de la biodiversité et de la structure de la communauté zooplanctonique peut ètre un puissant outil pour évaluer l'état de trophie des milieux aquatiques. Cela peut aussi permettre de developper des stratégies de gestion durable de ces milieux vulnérables. Ce travail est une expérience inédite sur un lac fortement anthropisé situé au coeur de la capitale politique du Cameroun en Afrique Centrale. Il montre bien que lorsqu'un lac passe de l'état oligotrophe à l'état eutrophe il y a non seulement une perte de la biodiversité, mais aussi et surtout une augmentation exponentielle de la biomasse algale et de la biomasse des espéces zooplanctoniques polluorésistantes. On assiste aussi à un remplacement graduel des espèces polluosensibles par les espèces pollurésistantes. C'est pourquoi, la connaissance de ces organismes peut ètre un atout pour la gestion durable des hydrosystèmes.
Download or read book River Culture written by UNESCO and published by UNESCO Publishing. This book was released on 2023-01-05 with total page 893 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review of tropical hydrobiology written by and published by . This book was released on 1993 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Documentaci n de la FAO written by and published by . This book was released on 1992 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Actas Y Memorias Congreso de Grandes Presas written by and published by . This book was released on 1973 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedic Dictionary of Landscape and Urban Planning written by Klaus-Jürgen Evert and published by Springer Science & Business Media. This book was released on 2010-05-21 with total page 1548 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique, multilingual, encyclopedic dictionary in two volumes covers terms regularly used in landscape and urban planning, as well as environmental protection. The languages are American and British English, Spanish (with many Latin-American equivalents), French, and German. The encyclopedia also provides various interpretations of the terms at the planning, legal or technical level, which make its meaning more precise and its usage clearer.
Download or read book Lake Pavin written by Télesphore Sime-Ngando and published by Springer. This book was released on 2016-10-31 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents the first multidisciplinary scientific work on a deep volcanic maar lake in comparison with other similar temperate lakes. The syntheses of the main characteristics of Lake Pavin are, for the first time, set in a firmer footing comparative approach, encompassing regional, national, European and international aquatic science contexts. It is a unique lake because of its permanently anoxic monimolimnion, and furthermore, because of its small surface area, its substantially low human influence, and by the fact that it does not have a river inflow. The book reflects the scientific research done on the general limnology, history, origin, volcanology and geological environment as well as on the geochemistry and biogeochemical cycles. Other chapters focus on the biology and microbial ecology whereas the sedimentology and paleolimnology are also given attention. This volume will be of special interest to researchers and advanced students, primarily in the fields of limnology, biogeochemistry, and aquatic ecology.
Download or read book Canadian Sources of Environmental Information written by and published by . This book was released on 1986 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Francis bibliographie g ographique internationale written by and published by . This book was released on 1994 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Sources of Environmental Information 1986 written by Canada. Environment Canada. Library and published by . This book was released on 1987 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Directory, updating the 1984 edition, containing the names, organizations andresearch interests of resources which responded to a questionnaire distributedin May 1986. Thesurvey was conducted to update the national inventory of specialists active in various fields of the environmental sciences and relateddisciplines, and to provide the Canadian contribution to INFOTERRA. It isdivided into an alphabetic listing of specialists and a computer-generatedindex to the subject expertise of those listed in government, industry, universities and the public sector.
Download or read book The Ocean Challenge Badge written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-05-08 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ocean covers 70 percent of the Earth’s surface, and is essential for life on our planet – even for those of us who live nowhere near the sea! It provides us all with food and other materials that we need, regulates our climate and provides half of the oxygen we breathe. The ocean also offers us various means of transport and opportunities for recreation. People have long thought that the ocean was so wide and bountiful that it would go on supplying our needs forever, but this is not the case: human activities are causing significant damage to life in the ocean. People are often unaware of the problems created by this heavy reliance, as few of us have the opportunity to look beneath the surface of the sea and see the damage that our actions have caused. This is where the Ocean Challenge Badge comes in: let it take you on a journey to discover the ocean! It is packed with activities to help you learn about how the ocean works, the creatures that live in it, and just how important it is in our everyday lives. You will also discover how YOU can play a role in protecting our ocean for future generations. We hope you will be inspired to take the challenge and celebrate our ocean. So dive in and begin your aquatic discoveries!
Download or read book Cage and Pen Fish Farming written by Malcolm C. M. Beveridge and published by Food & Agriculture Org.. This book was released on 1984 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spine title: Environmental impact of freshwater cage and pen fish farming.
Download or read book Annales de Limnologie written by and published by . This book was released on 1996 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climate Change Implications for Fisheries and Aquaculture written by K. L. Cochrane and published by Food & Agriculture Organization of the UN (FAO). This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of the current scientific knowledge available on climate change implications for fisheries and aquaculture is provided through three technical papers that were presented and discussed during the Expert Workshop on Climate Change Implications for Fisheries and Aquaculture (Rome, 7-9 April 2008). A summary of the workshop outcomes as well as key messages on impacts of climate change on aquatic ecosystems and on fisheries- and aquaculture-based livelihoods are provided in the introduction of this Technical Paper. The first paper reviews the physical and ecological impacts of climate change relevant to marine and inland capture fisheries and aquaculture. The paper begins with a review of the physical impacts of climate change on marine and freshwater systems and then connects these changes with observed effects on fish production processes. It also outlines a series of scenarios of climate change impacts on fish production and ecosystems through case studies in different regions and ecosystems. The second paper tackles the consequences of climate change impacts on fisheries and their dependent communities. It analyses the exposure, sensitivity and vulnerability of fisheries to climate change and presents examples of adaptive mechanisms currently used in the sector. The contribution of fisheries to greenhouse gas emissions is addressed and examples of mitigation strategies are given. The role of public policy and institutions in promoting climate change adaptation and mitigation is also explored. Finally, the third paper addresses the impacts of climate change on aquaculture. It provides an overview of the current food fish and aquaculture production and a synthesis of existing studies on climate change effects on aquaculture and fisheries. The paper focuses on the direct and indirect impacts of climate change on aquaculture, in terms of biodiversity, fish disease and fishmeal. Contribution of aquaculture to climate change is addressed (carbon emission and carbon sequestration), as well as possible adaptation and mitigation measures that could be implemented.
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquatic Oligochaete Biology VI written by Kathryn A. Coates and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent studies on diverse aspects of the biology of clitellate works (oligochaetes and leeches) are found in the Proceedings of the most recent International Symposium on Aquatic Oligochaete Biology - from development to population dynamics and from ultrastructure to evolution. The majority of the contributions, which have a very broad geographic scope, are investigations of the biology and ecology of oligochaete works in natural and polluted waters.
Download or read book Farming the Waters for People and Food written by Rohana P. Subasinghe and published by Food & Agriculture Organization of the UN (FAO). This book was released on 2012 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Global Conference on Aquaculture 2010 brought together a wide range of experts and important stakeholders and reviewed the present status and trends in aquaculture development, evaluated the progress made in the implementation of the 2000 Bangkok Declaration and Strategy, addressed emerging issues relevant to aquaculture development, assessed opportunities and challenges for future aquaculture development and built consensus on advancing aquaculture as a global, sustainable and competitive food production sector. This volume, yet another joint effort of FAO and NACA, brings the outcome of the Global Conference on Aquaculture 2010, the much-needed clear and comprehensive technical information on how aquaculture could be mobilized to alleviate global poverty and improve food and nutrition security in the coming decades.
