Fishing News Books - Böcker

Fishing is a major form of ecological disturbance to marine communities throughout the world. In the past, fisheries biologists have concentrated on the studying of the direct effects of fishing on stocks of target species and understanding the processes of recruitment. There is now a growing appreciation of the ecological implications of the wider effects of fishing activities on marine organisms and their habitats. Contributions include articles that consider the physical effects of fishing gears on the seabed; distribution of, and trends in fishing effort; ecological effects on benthic fauna; long-term community changes; the effects of food subsidies in the marine environment; interactions between fisheries and marine mammals; technical measures to reduce impacts of fisheries; conservation issues and priorities; socio-economic implications of wider fisheries impacts.

Longlining is becoming increasingly more important as a method of fishing commercially for certain prime species of fish- particulary in the face of declining stocks. Longlining is much more selective that any other form of fishing and is thus more environmentally acceptable. Furthermore, longlining allows for the targeting of particular prime species and fish caught by this method are less damaged and thus hold a higher value. Despite the many major benefits of longlining, there are, as yet few books which address the technical and economic aspects of this method of commercial fishing. Written by an expert, this new book describes the principles and development of longlining fishing and explains the action of chemical sensing in fish and their behaviour towards baited hooks. Details of gear construction, the operation cycle for longlines, longline vessels and the different principles of mechanised baiting and on-board gear handling are provided and typical examples are given. The target species, gear parameters and catching efficiency, and the selective properties of longline gear are fully discussed whilst a concluding chapter compares longlining with other fishing methods.

The new edition of this widely successful text continues to offer a wealth of essential information and practical guidance for all involved in freshwater fisheries management in temperate regions. Whilst the whole text has been fully revised and many sections have been completely rewritten to cover the many advances and developments of the last decade, the clarity of presentation and accessibility of style, hallmarks of the previous edition, are retained. Once more, the text is primarily concerned with the British Isles. However, the principles described and examples given are widely applicable in many other countries.

The Primary purpose for producing this book on Aquaculture Sector Planning and Management is to fill the great void for fundamental information needed by planners and administrators in government charged with the responsibilities of organising and managing the relatively new and important food-producing sub-sector, now widely called aquaculture. Secondly, it is intended to be a useful guideline on planning an management processes for anyone in the public or private sectors who has some responsibilty for planning and implementing aquaculture development programmes or projects. Finally, it is a different type of textbook for undergaduate students, including those in the closely related fields of agriculture and environmental sciences on the many issues underlying the development of aquaculture, or that of any other similar field.

Cyprinids rank as one of the most commercially important groups of freshwater fishes and are exploited for many purposes; as a human food source, especially in Europe and Asia; as sport fish; and as ornamental fish for ponds and aquaria. Certain species are also cultured as bait fish and several of the small cyprinids such as the zebra fish have become internationally accepted laboratory models for toxicology testing and molecular research. A thorough understanding of cyprinid health and diseases is fundamental to the successful management and exploitation of these fishes for freshwater fisheries, pisciculture and ornamental productions. This practical guide to disease diagnosis, prevention and control includes numerous colour plates and covers a comprehensive array of diseases - infectious and non-infectious - of cultivated and wild cyprinids.

First published in 1990, The Economics of Salmon Aquaculture was the first book to systematically analyse the salmon aquaculture industry, from both a market and production perspective. Since publication of the first edition of this book, the salmon aquaculture industry has grown at a phenomenal rate, with salmon now being consumed in more than 100 countries worldwide. This second edition of a very popular and successful book brings the reader right up to date with all the major current issues pertaining to salmon aquaculture. Commencing with an overview of the production process in aquaculture, the following chapters provide in-depth coverage of the sources of the world’s supply of salmon, the growth in productivity, technological changes, environmental issues, markets, market structure and competitiveness, lessons that can be learnt from the culture of other species, optimal harvesting techniques, production planning, and investment in salmon farms.Written by Frank Ashe and Trond Bjørndal, two of the world's leading experts in the economics of aquaculture, this second edition of The Economics of Salmon Aquaculture provides the salmon aquaculture industry with an essential reference work, including a wealth of commercially important information. This book is also a valuable resource for upper level students and professionals in aquaculture and economics, and libraries in all universities and research establishments where these subjects are studied and taught should have copies of this important book on their shelves.