The Science of Home Making

The Science of Home Making PDF

Author: Emma Elizabeth Pirie

Publisher:

Published: 1915

Total Pages: 412

ISBN-13:

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The Science of Home Making: A Textbook in Home Economics by Fred Duane Crawshaw, first published in 1915, is a rare manuscript, the original residing in one of the great libraries of the world. This book is a reproduction of that original, which has been scanned and cleaned by state-of-the-art publishing tools for better readability and enhanced appreciation. Restoration Editors' mission is to bring long out of print manuscripts back to life. Some smudges, annotations or unclear text may still exist, due to permanent damage to the original work. We believe the literary significance of the text justifies offering this reproduction, allowing a new generation to appreciate it.

Ecology of Atlantic Salmon and Brown Trout

Ecology of Atlantic Salmon and Brown Trout PDF

Author: Bror Jonsson

Publisher: Springer Science & Business Media

Published: 2011-05-03

Total Pages: 720

ISBN-13: 9400711891

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Destruction of habitat is the major cause for loss of biodiversity including variation in life history and habitat ecology. Each species and population adapts to its environment, adaptations visible in morphology, ecology, behaviour, physiology and genetics. Here, the authors present the population ecology of Atlantic salmon and brown trout and how it is influenced by the environment in terms of growth, migration, spawning and recruitment. Salmonids appeared as freshwater fish some 50 million years ago. Atlantic salmon and brown trout evolved in the Atlantic basin, Atlantic salmon in North America and Europe, brown trout in Europe, Northern Africa and Western Asia. The species live in small streams as well as large rivers, lakes, estuaries, coastal seas and oceans, with brown trout better adapted to small streams and less well adapted to feeding in the ocean than Atlantic salmon. Smolt and adult sizes and longevity are constrained by habitat conditions of populations spawning in small streams. Feeding, wintering and spawning opportunities influence migratory versus resident lifestyles, while the growth rate influences egg size and number, age at maturity, reproductive success and longevity. Further, early experiences influence later performance. For instance, juvenile behaviour influences adult homing, competition for spawning habitat, partner finding and predator avoidance. The abundance of wild Atlantic salmon populations has declined in recent years; climate change and escaped farmed salmon are major threats. The climate influences through changes in temperature and flow, while escaped farmed salmon do so through ecological competition, interbreeding and the spreading of contagious diseases. The authors pinpoint essential problems and offer suggestions as to how they can be reduced. In this context, population enhancement, habitat restoration and management are also discussed. The text closes with a presentation of what the authors view as major scientific challenges in ecological research on these species.

Seafood Ecolabelling

Seafood Ecolabelling PDF

Author: Trevor Ward

Publisher: John Wiley & Sons

Published: 2009-01-28

Total Pages: 472

ISBN-13: 144430139X

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SEAFOOD Ecolabelling Principles and Practice Edited by Trevor Ward and Bruce Phillips In recent years there have been some major developments and agreatly increased recognition of the importance of more sustainableand environmentally-friendly fishing and fish-farming methods.Various types of seafood eco-endorsements have been introduced, andthese initiatives have now blossomed into an extensive range oftypes of product endorsement labels and systems. This volume comprehensively reviews the current eco-endorsementsystems for seafood products, described in four main sections withcontributions by leading experts from around the globe: • A full description of the background and history ofecolabels, ratings, guides and choice systems • Seafood evaluation and certification, including issues ofquality, costs and benefits • Highly significant case studies in the use of ecolabels,including details of programs undertaken with species such asPollock, Baja Red Spiny Lobster, and Patagonian Toothfish • The future of sustainable seafood Seafood Ecolabelling is an essential purchase for all thoseinvolved in fisheries and aquaculture management and productcertification and ecolabelling throughout the world. Professionalsincluding fishery scientists and managers, fish farm managers,marine biologists, environmental biologists, conservationbiologists, ecologists, natural resource managers, civil societyand sustainability governance practitioners, and resource andenvironmental economists will find this book to be extremelyvaluable. Professionals involved in the seafood trade, includingthose in production, packaging, reselling and seafood productlabelling, will find a great deal of commercial interest withinthis book. Libraries in all universities and researchestablishments where biological sciences, food science andfisheries are studied and taught should have copies of thisimportant book on their shelves. Also available from Wiley-Blackwell Eco-labelling in Fisheries Edited by B. Phillips et al. 9780632064229 Environmental Best Practices for Aquaculture Edited by C. Tucker & J. Hargreaves 9780813820279 Advances in Fisheries Science Edited by A. Payne et al. 9781405170833 Fisheries Management and Ecology Journal published bi-monthly Print 0969-997X, Online 1385-2400

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