Download or read book Agrindex written by and published by . This book was released on 1990 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the International Conference on African Fish and Fisheries written by and published by . This book was released on 2007 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Afrotropical Zoology written by and published by . This book was released on 2004 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Journal of Afrotropical Zoology is devoted to the biology of animals living in the tropical part of Africa, including the islands with that climatic regime but excluding the area north of the Sahara
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 Documentation de la FAO written by and published by . This book was released on 1984 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Life and environment written by and published by . This book was released on 1992 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Documentation de la FAO P ches 1986 1990 written by David Lubin Memorial Library and published by . This book was released on 1991 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book P cheries Ouest Africaines written by Philippe Cury and published by IRD Editions. This book was released on 1991 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine and Coastal Resource Management written by David R. Green and published by Routledge. This book was released on 2017-09-27 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this new and highly original textbook for a range of interdisciplinary courses and degree programmes focusing on marine and coastal resource management, readers are offered an introduction to the subject matter, a broad perspective and understanding, case study applications, and a reference source. Each chapter is written by an international authority and expert in the respective field, providing perspectives from physical and human geography, marine biology and fisheries, planning and surveying, law, technology, environmental change, engineering, and tourism. In addition to an overview of the theory and practice of its subject area, many chapters include detailed case studies to illustrate the applications, including relationships to decision-making requirements at local, regional, and national levels. Each chapter also includes a list of references for further reading, with a selection of key journal papers and URLs. Overall, this volume provides a key textbook for undergraduate and postgraduate courses and for the coastal or marine practitioner, as well as a long-term reference for students.
Download or read book Faune des poissons d eaux douces et saum tres de l Afrique de l Ouest written by Didier Paugy and published by IRD Orstom. This book was released on 2003 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new reexamined and corrected fauna displays an up to date account of knowledge on the systematics of the fresh and brackish water fishes of West Africa. Its aim is to help ichthyologists with the identification of the species they collect. It is made practical and didactic by paying special attention to iconography and as far as possibly by giving priority to the simplest and easiest observable criteria. West Africa, from the Senegal River basin in the North West to the Chad basin in the North East and the Cross River in the South, includes the majority of the Sahelo-Sudan basins, except for the Nile, and the Western Guinea area, covering the Atlantic Coastal Basins from Guinea to Western Cote d'Ivoire. Specialists of each group or family were called to write the chapters. To facilitate the access of this fauna, an English translation is provided for all text. Summary tables, comparing morphological characters and measures for the different species, complement the identification keys. Distribution maps are provided for freshwater species. At present, 64 families are described, including 192 genera and 584 valid species. A reduced paper version is presented in two volumes; the integral CD-ROM version is inserted on the back cover of the second volume.
Download or read book Conservation and Management of Sharks written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lake Chilwa written by M. Kalk and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Leonard C. Beadle In contrast to the more sta bie oceans, inland waters are, on the geological time scale, short-lived and are subject to great fluctuations in chemical composition and physical features. Very few lakes and rivers have existed continuously for more than a million years, and the life of the majority is to be measured in thousands or less. Earth movements, erosion and long-term climatic changes in the past have caused many of them to appear and disappear. No wonder then that most freshwater organism are especially adapted to great changes and many even to temporary extinction of their environment. Recent studies of residual sediments from existing and extinct lakes in tropical Africa have told us much about their age and the past history of their faunas and floras, from which we may deduce something about the climate and the conditions in the water in the past. The forces that have formed and moulded the African Great Lakes have been catastrophic in their violence and effects. They are not yet finished, but the present rate of change is, in human terms, too slow for direct observation of the ecological effects. The large man-made lakes are providing very good opportunities for studying the chemi cal and biological consequences of the initial filling but, once filled, they are artificially protected against major fluctuations.
Download or read book Livestock Policy Analysis written by International Livestock Research Institute and published by ILRI (aka ILCA and ILRAD). This book was released on 1995-01-01 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Policy concepts; Identification of policy issues; Production systems, supply and demand; Market, price and trade policies; Marketing and distribution systems; Budget and manpower planning; Land tenure police for the livestock sector; Policy analysis report writing and communication; Livestock production and marketing in alphabeta - a case study.
Download or read book Evolution written by Stephen Stearns and published by OUP. This book was released on 2005-08-11 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since Charles Darwin's masterpiece 'The Origin of Species by Natural Selection' was published in 1859, evolution has become an established science that illuminates and informs our understanding of many central biological issues, from animal development to animal behaviour. Evolution: An Introduction stands alone amongst the major textbooks by focusing on key principles to offer a truly accessible, unintimidating treatment of this fascinating subject. Its full colour presentation, extensively revised content and enhanced pedagogical features make Evolution: An Introduction the perfect text for any student wishing to gain a sound understanding of the subject.
Download or read book Genetics of Adaptation written by Rodney Mauricio and published by Springer Science & Business Media. This book was released on 2005-07-20 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: An enduring controversy in evolutionary biology is the genetic basis of adaptation. Darwin emphasized "many slight differences" as the ultimate source of variation to be acted upon by natural selection. In the early 1900’s, this view was opposed by "Mendelian geneticists", who emphasized the importance of "macromutations" in evolution. The Modern Synthesis resolved this controversy, concluding that mutations in genes of very small effect were responsible for adaptive evolution. A decade ago, Allen Orr and Jerry Coyne reexamined the evidence for this neo-Darwinian view and found that both the theoretical and empirical basis for it were weak. Orr and Coyne encouraged evolutionary biologists to reexamine this neglected question: what is the genetic basis of adaptive evolution? In this volume, a new generation of biologists have taken up this challenge. Using advances in both molecular genetic and statistical techniques, evolutionary geneticists have made considerable progress in this emerging field. In this volume, a diversity of examples from plant and animal studies provides valuable information for those interested in the genetics and evolution of complex traits.
