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Sixty-eight authors present current knowledge about landscape-lake and landscape-stream relationships in four continents with a focus on improved understanding and management of fish and macroinvertebrate assemblage patterns and trends. The book includes chapters on (1) finding and interpreting pertinent non-GIS landscape data; (2) use of riverscapes for assessing and interpreting natural and anthropogenic limits on fish species; (3) landscape-lake interactions affecting fish species and lake-river resilience; (4) methods for improving landscape-aquatic survey designs and sampling methodologies; (5) landscape effects on stream habitat conditions; (6) use of hydrologic units or regions for partitioning biotic responses to landscape conditions; and (7) employing landscape variables in predictive conservation modeling.--

There is a general lack of understanding of the role of lipids in aquatic ecosystems. The fundamental purpose of this book is to synthesize the divergent literature on aquatic lipids into a coordinated, digestible form. A large part of the book addresses lipid composition and production in freshwater organisms, with chapters on phytoplankton, zooplankton and benthic invertebrates. A common theme throughout the book is the function of lipids in aquatic food webs, with a chapter devoted exclusively to lipids as indicators of health in fish populations. A complementary chapter highlights the role of lipids and essential fatty acids in mariculture. Methodologies to determine the lipid content of aquatic samples and suggestions as to the utility of fatty acids as trophic markers are provided. There is a chapter on the role of lipids in the bioaccumulation and bioconcentration of toxicants and another on the relationships between lipids and surface films and foams. The final chapter highlights the similarities and differences between lipids of marine and freshwater origin. Students and researchers in ecology, phycology, aquatic toxicology, physiological ecology and limnology will find this an invaluable guide and reference

This book is about freshwater fish in streams, lakes, reservoirs, and special habitats around the world. It addresses approximately twenty major topics in freshwater fish ecology in a format suitable for use in graduate-level courses. The book focuses on basic ecology and contains much data from fisheries ecology. Dr. Matthews explains the way in which empirical studies, theoretical concepts, and experimental evaluations blend into the current state-of-the-art with respect to each major topic, and provides original data and interpretations on some points as well as new syntheses. Each chapter contains empirical information, a synthesis, and a summary

What is ecological science? -- How does scale of measurement affect what we see? -- Wonderful water: linkages from the atom to the biosphere -- What's in a lake? -- What's in rivers and streams? -- Fundamental ecological questions -- How are population numbers and structure affected by dispersal? -- Why do organisms occupy particular habitats? -- How do freshwater communities recover from disturbance? -- What is the impact of predators in freshwater systems? -- Applied freshwater ecology -- What are the ecological effects of changing a water regime? -- How do we assess the impact of pollution? -- Can we fix smelly, green lakes? -- What is the impact of introduced species?.

environmental management; marine; freshwater sciences

environmental management; marine; freshwater sciences

Intro -- FRESHWATER ECOSYSTEMS AND AQUACULTURE RESEARCH -- FRESHWATER ECOSYSTEMS AND AQUACULTURE RESEARCH -- CONTENTS -- PREFACE -- PRODUCTION FRESH WATER FISH WITH UNCONVENTIONAL INGREDIENTS IN EGYPT -- Abstract -- Introduction -- Problems Associated with Unconventional Feedstuffs Formulation Problems -- A. Commercialized Sources, which Divided into -- B. Not Commercialized Sources as Single Cell, Protein Grasses, Leaf Protein, Yeast and Phytoplankton -- World Production from Aquaculture -- I. Unconventional Ingredients for Tilapia Feed -- 1. Soybean Meal (SBM) -- A. Production of Fingerlings from Nile Tilapia -- B. Production of Marketing Fish from Nile Tilapia -- 2. Cotton Seed Meal (CSM) -- 3. Sunflower Meal -- 4. Linseed Meal -- 5. Krill -- 6. Poultry-Products and Feather Meal -- 7. Fish By-Product Protein Concentrates -- 8. Brewers Dried Yeast (BDY) -- 9. Broad Bean Meal -- Feed Intake, Growth Performance and Feed Utilization -- Apparent Digestibility Coefficients -- 10. Plant Protein Mixture (PPM) -- 11. Yucca Schidigera -- Common Carp -- Physiology -- Habitat -- Diet -- Reproduction -- II. Unconventional Ingredients for Common Carp -- A. Cluster Bean Cyamposis Tetagonoloba -- 2. Evaluation of Linseed Meal as a Dietary Protein Source for Common Carp, Cyprinus Carpio L -- References -- NATURAL RENEWABLE WATER RESOURCESAND ECOSYSTEMS IN SUDAN -- Abstract -- 1. Introduction -- 2. Geography, Population and Climate -- 3. Economy, Agriculture and Food Security -- 4. Water Resources and Use -- 4.1. Water Resources -- 4.2. Water Use -- 5. International Water Issues -- 5.1. Water Management, Policies and Legislation Related to Water Use -- 5.1.1. Institutions -- 5.1.2. Water Management -- 5.1.3. Policies and Legislation -- 5.1.4. Finances -- 6. Irrigation and Drainage Development -- 6.1. Evolution of Irrigation Development.

"This text examines the impact of climate change on freshwater ecosystems, past, present and future. It especially considers the interactions between climate change and other drivers of change including hydromorphological modification, nutrient loading, acid deposition and contamination by toxic substances using evidence from palaeolimnology, time-series analysis, space-for-time substitution, laboratory and field experiments and process modelling. The book evaluates these processes in relation to extreme events, seasonal changes in ecosystems, trends over decadal-scale time periods, mitigation strategies and ecosystem recovery. The book is also concerned with how aspects of hydrophysical, hydrochemical and ecological change can be used as early indicators of climate change in aquatic ecosystems and it addresses the implications of future climate change for freshwater ecosystem management at the catchment scale. This is an ideal book for the scientific research community, but is also accessible to Masters and senior undergraduate students"--

Atmospheric Sciences; Marine & Freshwater Sciences; Environmental Management

This publication stands out from many others on fish conservation in that it deals exclusively with freshwater fish of European waters. 34 contributions offer up-to-date reviews on the conservation status of freshwater fish in 10 European countries and research results in genetics, systematics and ecology of more that 20 endangered European fish taxa. Selected examples show the changes in the fish communities of whole catchment areas under human influence in the past decades.Not only scientists in fish biology, but also fishery managers and hydraulic engineers will find new insights into the biology of endangered fish species and basic data in order to elaborate specific conservation measures for the local survival of these taxa

The North American freshwater fish fauna is the most diverse and thoroughly researched temperate fish fauna in the world. Ecology of North American Freshwater Fishes is the only textbook to provide advanced undergraduate and graduate students and researchers with an up-to-date and integrated view of the ecological and evolutionary concepts, principles, and processes involved in the formation and maintenance of this fauna. Ecology of North American Freshwater Fishes provides readers with a broad understanding of why specific species and assemblages occur in particular places. Addi.