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Following the extremely well-received structure of the first edition, this carefully revised and updated new edition now includes much new information of vital importance to those working and researching in the fisheries and aquaculture industries. Commencing with chapters covering genetic variation and how it can be measured, the authors then look at genetic structure in natural populations, followed by a new chapter covering genetics in relation to population size and conservation issues. Genetic variation of traits and triploids and the manipulation of ploidy are fully covered, and another new chapter is included, entitled 'From Genetics to Genomics'. The book concludes with a chapter covering the impact of genetic engineering in aquaculture.With the inclusion of a wealth of up-to-date information, new text and figures and the inclusion of a third author, Pierre Boudry, the second edition of Biotechnology and Genetics in Fisheries and Aquaculture provides an excellent text and reference of great value and use to upper level students and professionals working across fish biology, aquatic sciences, fisheries, aquaculture, genetics and biotechnology. Libraries in all universities and research establishments where biological sciences, fisheries and aquaculture are studied and taught should have several copies of this excellent new edition on their shelves. Completely updated, revised and expanded new editionSubject area of ever increasing importanceExpanded authorshipCommercially useful information for fish breeders
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Just menus? Yes. This book focuses on a single, vitally important task that confronts everyone who builds web sites for use by people: how to code and present menus that are easy to understand and use, that convey what users need to know about the many paths they can take to get to the information they want, in a variety of technologies. Every web site has a menu (trust us-we looked for a professional site without a menu, and came up empty). Some sites have two, three, or more menus on the same page. Menus give users a simple way to deal with the dozens, hundreds, even thousands of options (or more), ideally sorting those options into understandable divisions people can choose with some confidence that they'll end up more or less where they intended to go. In this book, we'll show you how professional sites organize content, present options, and use a wide array of technologies for navigation. Sometimes these approaches work well and serve as excellent models for your own navigation systems. Sometimes? Well - nobody's perfect! We'll walk you through an extensive range of different menu code that can be easily downloaded from http://www. glasshaus. com/, and adapted to your own needs, taking all the hassle out of menu coding.