Simon Jennings
Список книг автора Simon JenningsCommerical Fishing
Fishing provides food, income and employment for millions of people. However, fishing has environmental costs that threaten rare species, marine ecosystems and the sustainability of the resource. Based on the research expertise of leading scientists, Commercial Fishing: the Wider Ecological Impacts provides a lively, timely and accessible account of fishing activities and their impacts on marine habitats, biodiversity and species of conservation concern. It covers fishing methods that range from trawling in the Antarctic to fishing with dynamite in the tropics. The authors show how habitats such as the muddy sea beds of the deep sea, kelp forests and coral reefs are affected by fishing and how birds, mammals, turtles and sea snakes both suffer and benefit from fishing activities. They also look to the future, highlighting ways to make fishing gear 'environmentally friendly' and asking whether marine reserves will improve conservation.
Marine Fisheries Ecology
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
Complete Artist’s Manual: The Definitive Guide to Materials and Techniques for Painting and Drawing
The definitive artist’s reference guide and comprehensive sourcebook of art materials and painting techniques, now available in a modern ebook edition.The Complete Artist’s Manual covers all the elements of painting and drawing from materials to techniques, colour composition and media – the ultimate artist’s bible.In addition, it contains a structured painting course with simple exercises developing into more advanced projects, with demonstrations by well-known practising artists who share their experience and expertise with the reader.Contents includes;SupportsDrawing and painting mediaDrawing and sketchingPainting techniquesColour and compositionWhat to paint – getting startedThe artist’s studioGlossary and directoryThe Complete Artist’s Manual is visually rich and exciting, practical and comprehensive – no artist’s studio should be without it.