Principles for Management of Fisheries and Wildlife: The Manager as Decision-maker is a unique introductory text that explains critical theories and principles of management and how to apply these successfully to real-world fisheries and wildlife situations and issues. Readers learn about management paradigms, decision-making frameworks and skills, planning for success, and ethics - all taught in the context of fisheries and wildlife issues such as habitat management, human-wildlife conflict, managing over-abundant and at-risk species, and harvest regulations. Each chapter includes guiding outcomes, terms and definitions and critical thinking questions. Opening problems and closing case studies provide opportunities for application of both ecological and management knowledge and skills. Readers also benefit from learning about international models of wildlife management. Rooted in the belief that biological and ecological knowledge can only be enhanced by sound management, planning, and decision-making skills, the book prepares biologists to be successful managers and leaders. Principles for Management of Fisheries and Wildlife is an outstanding textbook for introductory courses in the discipline.

The first comprehensive monograph on periphyton, this book contains contributions by scientists from around the globe. Multi-disciplinary in nature, it covers both basic and applied aspects of periphyton, and is applicable worldwide in natural, extensive and intensive managed systems. Periphyton, as described in this book, refers to the entire complex of attached aquatic biota on submerged substrates, including associated non-attached organisms and detritus. Thus the periphyton community comprises bacteria, fungi, protozoa, algae, zooplankton and other invertebrates. Periphyton is important for various reasons: as a major contributor to carbon fixation and nutrient cycling in aquatic ecosystems; as an important source of food in aquatic systems; as an indicator of environmental change. It can also be managed to improve water quality in lakes and reservoirs; it can greatly increase aquaculture production; it can be used in waste water treatment. The book provides an international review of periphyton ecology, exploitation and management. The ecology part focuses on periphyton structure and function in natural systems. The exploitation part covers its nutritive qualities and utilization by organisms, particularly in aquaculture. The final part considers the use of periphyton for increasing aquatic production and its effects on water quality and animal health in culture systems. This book will help scientists and entrepreneurs further understand the ecology and production of aquatic systems and venture into new and promising areas.

Fish diseases play a major role in aquatic ecosystems. Both wild and cultured fish suffer from a number of parasitic, bacterial, fungal, and viral diseases. Their impact can most clearly be seen among aqua-cultured fish. However, wild fish also suffer from a range of diseases that affect their survival. Infections may even influence quality parameters (texture, edibility) and thereby affect industrial exploitation. The present book outlines important aspects of the diagnosis, life cycles, symptoms, prophylaxis, and control of fish pathogens. Because many fish pathogens are species specific, the authors do not attempt to catalogue all fish diseases, rather, the text should be regarded as an introduction to the main areas by providing a series of relevant examples of host-pathogen systems. This text will be useful for a range of professionals and students working with the aquatic environment. Readers interested in aquaculture, the biology of fish, fisheries biology, and education may find it useful as an introduction to the field.

An analysis of how responsive governance has shaped the evolution of global fisheries in cyclical patterns of depletion and rebuilding dubbed the "management treadmill." The oceans are heavily overfished, and the greatest challenges to effective fisheries management are not technical but political and economic. In this book, D. G. Webster describes how the political economy of fisheries has evolved and highlights patterns that are linked to sustainable transitions in specific fisheries. Grounded in the concept of responsive governance, Webster's interdisciplinary analysis goes beyond the conventional view of the "tragedy of the commons." Using her Action Cycle/Structural Context framework, she maps long-running patterns that cycle between depletion and rebuilding in a process that she terms the management treadmill. Webster documents the management treadmill in settings that range from small coastal fishing communities to international fisheries that span entire oceans. She identifies the profit disconnect, in which economic incentives are out of sync with sustainable use, and the power disconnect, in which those who experience the costs of overexploitation are politically marginalized. She examines how these disconnects shaped the economics of expansion and documents how political systems failed to prevent related cycles of serial resource depletion. Webster also traces the increasing use of restrictive management in response to worsening fisheries crises and the emergence of new, noncommercial interests that demand greater management but also generate substantial conflict. She finds that the management treadmill is speeding up with population growth and economic development, and so concludes that sustainable fisheries can only exist within a sustainable global economic system.