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Reef fish spawning aggregations, ranging from small groups to many tens of thousands of individuals, are spectacular but poorly known natural phenomena whereby fish assemble at specific times and locations to spawn. For some species these large groups may be the only form of reproduction, the high fish numbers briefly giving a false impression of stability and abundance—an ‘illusion of plenty’. They are often a focus for intensive seasonal fishing because of their predictability and because many important commercial fishes form them. Highly vulnerable to overexploitation, many aggregations and their associated fisheries, have disappeared or are in decline. Few are effectively managed o...
There is a growing need for appropriate management of aquatic plants in rivers and canals, lakes and reservoirs, and drainage channels and urban waterways. This management must be based on a sound knowledge of the ecology of freshwater plants, their distribution and the different forms of control available including chemical and physical, and biological and biomanipulation. This series of papers from over 20 different countries was generated from the tenth in the highly successful series of European Weed Research Society symposia on aquatic plant management, this being the tenth. It provides a valuable insight into the complexities involved in managing aquatic systems, discusses state-of-the...
The importance of small-scale fisheries for sustainable livelihoods and communities, food security, and poverty eradication is indisputable. With the endorsement of the ‘Voluntary Guidelines for Securing Sustainable Small-Scale Fisheries’, FAO member states recognize that governments, civil society organizations, and research communities all have a role to play in helping small-scale fisheries achieve these goals. This book argues that policies targeting small-scale fisheries need to be based on a solid and holistic knowledge foundation, and support the building of governance capacity at local, national, and global levels. The book provides rich illustrations from around the world of why...
This book provides a comprehensive account of vascular biology and pathology and its significance for health and disease. It systematically and chronologically explains how we came to our current understanding of the vasculature and it ́s function today, and describes in an entertaining way the diverse flaws and turns in science and medicine from the past. It thereby offers a complete and well-studied history on vascular biology and medicine. The book has an easy-to-read style and is written for students as well as scientists, physicians and lecturers in the field of biomedicine, human physiology, cardiology and hematology.
A synthesis of concepts and examples of how physiological processes influence seaweed communities worldwide, authored by experts in the field.
Part 1: Intratumoral Signatures Associated With Immune Responsiveness
A translated, thoroughly revised, and updated edition of the German work. Part I presents the geographic distribution of seaweeds and seagrasses around the world, environmental factors, floral history, and relevant paleoceanographic considerations, covered geographically. Part II covers seaweed ecophysiology, including the relationships of light, temperature, salinity, and other abiotic factors on seaweed distribution, as well as biotic factors such as competition, herbivory, predation, and parasitism, in order to elucidate the ecophysiologic bases for the distribution patterns examined in Part I.
Fodor's Gold Guides are ideal for travelers who want to experience the flavors, sights, and sounds of their destination. Short, medium, and long itineraries advise readers on what to see in the time they have. A-to-Z listings of important contacts and travel tips, detailed maps with bullets pinpointing hotels and restaurants, background essays, and a comprehensive index make the perfect travel package.