This volume summarizes the two-year effort of a working group of leading aquatic scientists sponsored by NSF, EPA, NASA, TVA, and NOAA to identify research opportunities and frontiers in freshwater sciences for this decade and beyond. The research agenda outlined focuses on issues of water availability, aquatic ecosystem integrity, and human health and safety. It is a consensus document that has been endorsed by all of the major professional organizations involved with freshwater issues.
This topical and exciting textbook describes fisheries exploitation, biology, conservation and management, and reflects many recent and important changes in fisheries science. These include growing concerns about the environmental impacts of fisheries, the role of ecological interactions in determining population dynamics, and the incorporation of uncertainty and precautionary principles into management advice. The book draws upon examples from tropical, temperate and polar environments, and provides readers with a broad understanding of the biological, economic and social aspects of fisheries ecology and the interplay between them. As well as covering 'classical' fisheries science, the book focuses on contemporary issues such as industrial fishing, poverty and conflict in fishing communities, marine reserves, the effects of fishing on coral reefs and by-catches of mammals, seabirds and reptiles. The book is primarily written for students of fisheries science and marine ecology, but should also appeal to practicing fisheries scientists and those interested in conservation and the impacts of humans on the marine environment. particularly useful are the modelling chapters which explain the difficult maths involved in a user-friendly manner describes fisheries exploitation, conservation and management in tropical, temperate and polar environments broad coverage of 'clasical' fisheries science emphasis on new approaches to fisheries science and the ecosystem effects of fishing examples based on the latest research and drawn from authors' international experience comprehensively referenced throughout extensively illustrated with photographs and line drawings
A handy compilation of 200 proven, time-and-cost-saving rules of thumb that cover the full range of photonics, from optics to lasers. * New edition features 75 completely new rules of thumb and many updated ones * New areas covered include lasers, detectors, and optical communications
This book results from a summer school held at Cornell University in 1992. The participants were graduate students and postdoctoral researchers selected from a broad range of interests and backgrounds in ecological studies. The summer school was the second in a continuing series whose underlying aim and the aim of this volume-is to bring together the different methods and concepts underpinning terrestrial, freshwater, and marine ecology. The first volume in the series focused on patch dynamics in these three ecologi cal sectors. Here we have endeavored to complement that volume by extending its comparative approach to the consideration of ecological time series. The types of data and the methods of collection are necessarily very different in these contrasting environments, yet the underlying concept and the technical problems of analysis have much in common. It proved to be of great interest and value to the summer school participants to see the differences and then work through to an appreciation ofthe generalizable concepts. We believe that such an approach must have value as well for a much larger audience, and we have structured this volume to provide a comparable reading experience.
Collection of essays that address the ecology of the North Woods from the creation of its landscape by glaciers to the current relations between species of plants and animals. Discusses ecology, habitat and inter-relationships in the New England states, Quebec, Ontario, Labrador, Wisconsin and Minnesota.
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