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Informationen zum Autor Dr Josep Lloret (Roses, 1971) is a fisheries biologist who carries out pioneering research on fish condition health) and its influence on life history traits, such as reproduction and growth. His research has been conducted at the CSIC and the University of Girona (Spain), the Institute of Sea Fisheries-Thünen Institute (Germany) and the CNRS (France). Dr Prof Georgiy Shulman (Kiev, 1929) is a marine zoologist, specialising in fish ecology and physiology. His well-known investigations have great significance in the areas of fish adaptations, biodiversity, life history and productivity, as well as fishery problems. His research has been carried out in The Institute of Biology of the Southern Seas (Sevastopol, Ukraine). Dr R. Malcolm Love (Liverpool, 1928-2006) was a world-renowned fish biochemist and biotechnologist. Dr Love carried out research in the fields of fish chemical biology, and the importance of fish in human nutrition, at the Torry Research Station, Aberdeen, Scotland, UK. Klappentext This important and informative new book outlines and discusses details of the basic principles and methods that are central to any study of fish condition, from a fish ecology and fisheries biology perspective. Condition and Health Indicators of Exploited Marine Fishes describes the potential capacities of condition indicators, providing examples showing the use of these indicators to solve practical problems in connection with fish ecology and fisheries research. By focusing on wild fish populations, the book complements the increasing number of scientific works that are contributing to show how fish condition studies are key to reveal problems in marine aquaculture, the effects of pollution, fish disease, and the importance of fish in human nutrition and medicine.Condition and Health Indicators of Exploited Marine Fishes provides a comprehensive introduction to the study of fish condition that will assist advanced undergraduate and postgraduate students, researchers and professionals, working in marine ecology and biology, fisheries biology, environmental sciences and fish pathology. All universities and research establishments where biological and environmental sciences, fisheries and aquaculture are studied and taught should have copies of this book on their shelves. Zusammenfassung This important and informative new book outlines and discusses details of the basic principles and methods that are central to any study of fish condition, from a fish ecology and fisheries biology perspective. Inhaltsverzeichnis Foreword viii Preface xi Acknowledgments xiv 1 Description of condition indicators 1 1.1 Morphometric indicators 3 1.1.1 Fulton's K condition factor 4 1.1.2 Le Cren's relative condition factor (Kn) 5 1.1.3 Relative weight (Wr) 6 1.1.4 Other methods based on weights and lengths 6 1.1.5 Limits of use of morphometric condition indicators 7 1.2 Organosomatic (bioenergetic or morphophysiological) indicators 12 1.2.1 Hepatosomatic index (liver index or relative liver condition) 12 1.2.2 Mesenteric (adipose or perivisceral) fat index 15 1.2.3 Digestivosomatic index or digestive index 16 1.2.4 Limits of applicability of organosomatic indicators 16 2 Physiological and biochemical condition indicators: their relevance in fish metabolism 17 2.1 Basic concepts 19 2.1.1 Energy expenditures 19 2.1.2 Sub-organism metabolism 22 2.1.3 Blood: transport of energy 22 2.1.4 Alternative pathways of energy catabolism 23 2.1.5 Energy anabolism: accumulation of energy 23 2.2 Lipids 24 2.2.1 Lipids as energy substrates 24 2.2.2 Lipids as structural metabolic substrates 24 2.2.3 Fatty acids 26 2.2.4 Lipid analysis 27 2.2.5 Rapid methods for fat ...
