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Condition and Health Indicators of Exploited Marine Fishes / Edition 1

Condition and Health Indicators of Exploited Marine Fishes / Edition 1

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Product Details

ISBN-13: 9780470670248
Publisher: Wiley
Publication date: 01/21/2014
Pages: 262
Product dimensions: 6.70(w) x 9.70(h) x 0.70(d)

About the Author

Dr Josep Lloret (Roses, 1971) is a fisheries biologistwho carries out pioneering research on fish condition health) andits influence on life history traits, such as reproduction andgrowth. His research has been conducted at the CSIC and theUniversity of Girona (Spain), the Institute of SeaFisheries-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-knowninvestigations have great significance in the areas of fishadaptations, biodiversity, life history and productivity, as wellas fishery problems. His research has been carried out in TheInstitute of Biology of the Southern Seas (Sevastopol,Ukraine).

Dr R. Malcolm Love (Liverpool, 1928-2006) was aworld-renowned fish biochemist and biotechnologist. Dr Love carriedout research in the fields of fish chemical biology, and theimportance of fish in human nutrition, at the Torry ResearchStation, Aberdeen, Scotland, UK.

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Table of Contents

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 livercondition) 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: theirrelevance 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 measurement in fish 32

2.3 Carbohydrates 37

2.4 Proteins and products of protein and nitrogenous metabolism38

2.5 Nucleic acid-based indicators 39

2.6 Enzymes and some other indicators of intermediate metabolism41

2.7 Hormones and other biologically active substances 41

3 Indicators of functional activity 42

3.1 Significance of condition indicators of functional activityin fish 42

3.2 Applied recommendations 51

4 Fish condition and life history 52

4.1 Fish condition during ontogenesis 52

4.1.1 Embryonic (eggs) and post-embryonic (larvae) development53

4.1.2 Juveniles 56

4.1.3 Sexual maturation 57

4.1.4 Senescence 61

4.1.5 Post-spawning death 63

4.2 Impact of fish condition on life-history traits 64

4.2.1 Impact on reproductive potential 64

4.2.2 Impact on growth 82

4.2.3 Impact on natural mortality 83

4.2.4 Applied recommendations 85

4.3 Condition during the annual cycle 86

4.3.1 Pre-spawning period 88

4.3.2 Spawning 88

4.3.3 Post-spawning feeding 93

4.3.4 Wintering 94

4.3.5 Migrations 96

4.3.6 Applied recommendations 97

4.4 Other cycles 97

4.4.1 Daily rhythms 97

4.4.2 Interannual fluctuations 98

4.5 Connection indicators between fish metabolism, abundancedynamics, behavior, and distribution 99

4.5.1 Abundance dynamics 99

4.5.2 Behavior 102

4.5.3 Distribution 107

5 Influence of environmental and anthropogenic factors onfish condition 111

5.1 Biotic factors 111

5.1.1 Food consumption 111

5.1.2 Density effects on condition 123

5.1.3 Parasites 125

5.2 Abiotic factors 130

5.2.1 Temperature 131

5.2.2 Climate change 136

5.2.3 Oxygen deficiency 140

5.3 Anthropogenic factors 147

5.3.1 Pollution 147

5.3.2 Fishing 150

5.3.3 Aquaculture 155

6 Fish condition as a measure of environmental status andhabitat quality 158

6.1 Fish condition as a measure of habitat quality 159

6.1.1 Large-scale differences in fish condition 159

6.1.2 Small-scale differences in fish condition 164

6.1.3 Condition as an indicator of habitat protection 172

6.1.4 Bathymetric quality 172

6.2 Condition of exploited fish and their predators 173

6.3 Fish condition as an indicator of climate-driven andanthropogenic changes in the ecosystem 175

6.4 Indicators of interspecific and intraspecificdifferentiation 189

7 Use of fish condition indicators to improve stockassessment and fisheries management 194

7.1 Fish condition and fishing mortality 195

7.2 Spatial and temporal variability: implications for fisheries195

7.2.1 Seasonality 195

7.2.2 Interannual variability 199

7.2.3 Spatial variability 203

7.3 Fish condition and stock assessment and management 203

Conclusions 206

References 207

Index 244

What People are Saying About This

From the Publisher

Condition and Health Indicators of Exploited MarineFishes…covers all aspects from a description of themeasures of condition, to physiology and biochemistry; theunderlying biological mechanisms, to environmental factorsaffecting condition, and finally to the use of condition indicatorsin stock assessment. This broad coverage will aid researchers intheir thinking about how condition is determined and what changesin condition mean for individuals and populations. Bringing all ofthese aspects together in one volume makes this book a veryvaluable reference tool.” (Dr Joanne Morgan,Northwest Atlantic Fisheries Centre, Fisheries & Oceans Canada,Canada)

“This book is very informative and valuable…It istruly an international example of a review, in which differentliterature sources (including Russian, Ukrainian, Scottish andSpanish sources that existed as a “grey literature”)have been assembled for a broader international audience. Theauthors, well known for their excellent research, have provided asubstantial and undeniable contribution to fish condition studies.The book should certainly be a “desktop” book for manyfishery scientist/ecologists as well as for students and all whoare interested in marine life research.” (Dr Natalia A.Yaragina,Knipovich Polar Research Institute of Marine Fisheriesand Oceanography, Russia)

“The seven chapters in this book provide, for the firsttime, a detailed and complete analysis of the diversity of thecurrent methods used for analyzing fish condition, providingcutting-edge examples of various applications and recentadvances…this book improves knowledge on fish conditionindices and their applications to fisheries and environmentalsciences. It is an essential reference for students, researchersand fishery managers interested in fishery topics.”(Professor Rachid Amara,Université du LittoralCôte d’Opale, UMR LOG 8187 CNRS, France)

“The authors are to be applauded for providing an updatedreview on this topic in a single volume and from a variety ofperspectives…numerous aspects of the book are to becommended: the range of condition indicators reviewed, theinclusion of applied recommendations and emphasis of importantpoints, and the diversity of facets treated in relation tocondition and health indicators.” (Dr EmiliGarcía-Berthou,University of Girona, Spain)

“The present book extensively covers all these aspectsrelated to the measurement, significance and usefulness ofcondition indicators to study fish populations in their naturalenvironment. It represents a significant reference for fisheriesbiologists interested in measuring fish health status andproductivity.”
(Dr. Yvan Lambert Institut Maurice-Lamontagne, Fisheriesand Oceans Canada)

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