Regional And Local Scale Population Genetic Structure Of A Primitive Teleost The African Bonytongue Heterotis Niloticus In Rivers Of West Africa

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Regional and Local-scale Population Genetic Structure of a Primitive Teleost, the African Bonytongue (Heterotis Niloticus), in Rivers of West Africa

Author : Elizabeth Carrera
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (817 download)

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Book Synopsis Regional and Local-scale Population Genetic Structure of a Primitive Teleost, the African Bonytongue (Heterotis Niloticus), in Rivers of West Africa by : Elizabeth Carrera

Download or read book Regional and Local-scale Population Genetic Structure of a Primitive Teleost, the African Bonytongue (Heterotis Niloticus), in Rivers of West Africa written by Elizabeth Carrera and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The African bonytongue (Heterotis niloticus), one of two living species of the primitive teleost family Arapaimidae, constitutes an important artisanal and commercial fishery in West Africa. This species has also been proposed for wide aquaculture use in Africa. Despite its importance, information on the levels of genetic differentiation for this fish in Benin is lacking, which can contribute to its conservation and management. In this study, regional and local scale genetic differentiation of the African bonytongue in Benin, West Africa, was examined using six microsatellite markers. In total, 221 H. niloticus individuals were sampled from 12 localities in Benin that include three river basins: Oueme-So (ten localities sampled); Mono (one locality); and Niger (one locality). The results showed a high degree of genetic differentiation between African bonytongue samples from the three river basins, which was expected given the barriers for dispersal for aquatic organisms. For the Oueme-So floodplain, they indicate high and homogeneous gene flow, suggesting that seasonal flooding facilitates gene flow across this region. The information obtained from this study will be useful for defining management units for H. niloticus in Benin, and caution against the translocation of individuals from different basins.

Cryopreservation of Fish Gametes

Author : Judith Betsy
Publisher : Springer Nature
ISBN 13 : 981154025X
Total Pages : 356 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Cryopreservation of Fish Gametes by : Judith Betsy

Download or read book Cryopreservation of Fish Gametes written by Judith Betsy and published by Springer Nature. This book was released on 2020-06-27 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the reproductive physiology and endocrinology of fishes is essential for captive maturation and seed production in the field of aquaculture. Studying the spermatology of fishes is a comparatively new focus in aquaculture, which has emerged as an important area of fish research over the past two decades. In this regard, the cryopreservation of fish gametes is a crucial aspect. Moreover, energetics studies of gametes have become essential, considering the loss of vigour in the spermatozoa after cryopreservation.The latest development in this context is the cryopreservation of spermatogonial stem cell, which is also covered in the book, along with detailed information on embryo cryopreservation in fishes and crustaceans. The role of cryopreservation in conservation programmes is another important aspect, one that will especially interest biologists.This book addresses central issues in fish gamete cryopreservation and breeding, while also reviewing the history of cryopreservation. Its most unique feature is the breadth of its coverage, from basic information on reproduction in fishes, to such advanced topics as embryo cryopreservation. Chiefly intended as a handy troubleshooting guide, the book represents a valuable resource for research students in related fields.

Hormones and Reproduction of Vertebrates, Volume 1

Author : David Norris
Publisher : Academic Press
ISBN 13 : 0080962297
Total Pages : 297 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Hormones and Reproduction of Vertebrates, Volume 1 by : David Norris

Download or read book Hormones and Reproduction of Vertebrates, Volume 1 written by David Norris and published by Academic Press. This book was released on 2011-05-04 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: This series of volumes represents a comprehensive and integrated treatment of reproduction in vertebrates from fishes of all sorts through mammals. It is designed to provide a readable, coordinated description of reproductive basics in each group of vertebrates as well as an introduction to the latest trends in reproductive research and our understanding of reproductive events. Whereas each chapter and each volume is intended to stand alone as a review of that topic or vertebrate group, respectively, the volumes are prepared so as to provide a thorough topical treatment across the vertebrates. Terminology has been standardized across the volumes to reduce confusion where multiple names exist in the literature, and a comprehensive glossary of these terms and their alternative names is provided. A complete, essential and up to date reference for research scientists working on vertebrate hormones and reproduction - and on animlals as models in human reproductive research Covers the endocrinology, neuroendocrinology, physiology, behaviour and anatomy of vertebrate reproduction Structured coverage of the major themes for all five vertebrate groups allows a consistent treatment for all Special chapters elaborate on features specific to individual vertebrate groups and to comparative aspects, similarities and differences between them

Ecological Studies in Tropical Fish Communities

Author : Ro McConnell
Publisher : Cambridge University Press
ISBN 13 : 9780521280648
Total Pages : 404 pages
Book Rating : 4.2/5 (86 download)

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Book Synopsis Ecological Studies in Tropical Fish Communities by : Ro McConnell

Download or read book Ecological Studies in Tropical Fish Communities written by Ro McConnell and published by Cambridge University Press. This book was released on 1987-02-27 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: The result of compiling widely scattered research on fish in tropical rivers, lakes and seas. A comprehensive overview of the ecology of fish communities in freshwater as well as marine environments.

Proteins in Food Processing

Author : Rickey Y. Yada
Publisher : Woodhead Publishing
ISBN 13 : 0081007299
Total Pages : 672 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Proteins in Food Processing by : Rickey Y. Yada

Download or read book Proteins in Food Processing written by Rickey Y. Yada and published by Woodhead Publishing. This book was released on 2017-11-13 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proteins in Food Processing, Second Edition, reviews how proteins may be used to enhance the nutritional, textural and other qualities of food products. After two introductory chapters, the book discusses sources of proteins, examining the caseins, whey, muscle and soy proteins, and proteins from oil-producing plants, cereals and seaweed. Part Two illustrates the analysis and modification of proteins, with chapters on testing protein functionality, modeling protein behavior, extracting and purifying proteins and reducing their allergenicity. A final group of chapters delves into the functional value of proteins and how they are used as additives in foods. Completely revised and updated with new developments on all food protein analysis and applications, such as alternative proteins sources, proteins as emulsifiers, proteins in nanotechnology and egg proteins Reviews the wide range of protein sources available Examines ways of modifying protein sources Discusses the use of proteins to enhance the nutritional, textural and other qualities of food products

Catalogue of the Fresh-water Fishes of Africa in the British Museum (Natural History) ...

Author : British Museum (Natural History). Department of Zoology
Publisher :
ISBN 13 :
Total Pages : 402 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Catalogue of the Fresh-water Fishes of Africa in the British Museum (Natural History) ... by : British Museum (Natural History). Department of Zoology

Download or read book Catalogue of the Fresh-water Fishes of Africa in the British Museum (Natural History) ... written by British Museum (Natural History). Department of Zoology and published by . This book was released on 1909 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Feed and Feeding Practices in Aquaculture

Author : D. Allen Davis
Publisher : Woodhead Publishing
ISBN 13 : 0128229926
Total Pages : 472 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Feed and Feeding Practices in Aquaculture by : D. Allen Davis

Download or read book Feed and Feeding Practices in Aquaculture written by D. Allen Davis and published by Woodhead Publishing. This book was released on 2022-05-28 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Feed and Feeding Practices in Aquaculture, Second Edition continues to play an important role in the successful production of fish and other seafood for human consumption. This is an excellent resource for understanding the key properties of feeds for aquaculture, advances in feed formulation and manufacturing techniques, and the practicalities of feeding systems and strategies. Many new updates have been integrated to reflect recent advances within the market, including special emphasis on up-and-coming trends and new technologies on monitoring fish feeding patterns, making this book useful for anyone working in R&D in the production of feed, as well as nutritionists, farm owners and technicians, and academics/postgraduate students with a research interest in the area. Includes new research information on using feed to enhance the sensory qualities of fish Presents the latest research in aquafeed and processing Provides the latest information on regulatory issues regarding feed and fish health

Food Webs

Author : Gary A. Polis
Publisher : Springer Science & Business Media
ISBN 13 : 1461570077
Total Pages : 475 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis Food Webs by : Gary A. Polis

Download or read book Food Webs written by Gary A. Polis and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the recent surge of activity in food web research fueled by new empirical data, this authoritative volume successfully spans and integrates the areas of theory, basic empirical research, applications, and resource problems. Written by recognized leaders from various branches of ecological research, this work provides an in-depth treatment of the most recent advances in the field and examines the complexity and variability of food webs through reviews, new research, and syntheses of the major issues in food web research. Food Webs features material on the role of nutrients, detritus and microbes in food webs, indirect effects in food webs, the interaction of productivity and consumption, linking cause and effect in food webs, temporal and spatial scales of food web dynamics, applications of food webs to pest management, fisheries, and ecosystem stress. Three comprehensive chapters synthesize important information on the role of indirect effects, productivity and consumer regulation, and temporal, spatial and life history influences on food webs. In addition, numerous tables, figures, and mathematical equations found nowhere else in related literature are presented in this outstanding work. Food Webs offers researchers and graduate students in various branches of ecology an extensive examination of the subject. Ecologists interested in food webs or community ecology will also find this book an invaluable tool for understanding the current state of knowledge of food web research.

Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest

Author : Didier Paugy
Publisher : IRD Orstom
ISBN 13 :
Total Pages : 468 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest by : Didier Paugy

Download or read book Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest written by Didier Paugy and published by IRD Orstom. This book was released on 2003 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new reexamined and corrected fauna displays an up to date account of knowledge on the systematics of the fresh and brackish water fishes of West Africa. Its aim is to help ichthyologists with the identification of the species they collect. It is made practical and didactic by paying special attention to iconography and as far as possibly by giving priority to the simplest and easiest observable criteria. West Africa, from the Senegal River basin in the North West to the Chad basin in the North East and the Cross River in the South, includes the majority of the Sahelo-Sudan basins, except for the Nile, and the Western Guinea area, covering the Atlantic Coastal Basins from Guinea to Western Cote d'Ivoire. Specialists of each group or family were called to write the chapters. To facilitate the access of this fauna, an English translation is provided for all text. Summary tables, comparing morphological characters and measures for the different species, complement the identification keys. Distribution maps are provided for freshwater species. At present, 64 families are described, including 192 genera and 584 valid species. A reduced paper version is presented in two volumes; the integral CD-ROM version is inserted on the back cover of the second volume.

Conservation of Freshwater Fishes

Author : Gerry Closs
Publisher : Cambridge University Press
ISBN 13 : 1107040116
Total Pages : 601 pages
Book Rating : 4.1/5 (7 download)

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Book Synopsis Conservation of Freshwater Fishes by : Gerry Closs

Download or read book Conservation of Freshwater Fishes written by Gerry Closs and published by Cambridge University Press. This book was released on 2016 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: A global assessment of the current state of freshwater fish biodiversity and the opportunities and challenges to conservation.

Tropical Stream Ecology

Author : David Dudgeon
Publisher : Elsevier
ISBN 13 : 0080557171
Total Pages : 343 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Tropical Stream Ecology by : David Dudgeon

Download or read book Tropical Stream Ecology written by David Dudgeon and published by Elsevier. This book was released on 2011-05-04 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical Stream Ecology describes the main features of tropical streams and their ecology. It covers the major physico-chemical features, important processes such as primary production and organic-matter transformation, as well as the main groups of consumers: invertebrates, fishes and other vertebrates. Information on concepts and paradigms developed in north-temperate latitudes and how they do not match the reality of ecosystems further south is expertly addressed. The pressing matter of conservation of tropical streams and their biodiversity is included in almost every chapter, with a final chapter providing a synthesis on conservation issues. For the first time, Tropical Stream Ecology places an important emphasis on viewing research carried out in contributions from international literature. First synthetic account of the ecology of all types of tropical streams Covers all of the major tropical regions Detailed consideration of possible fundamental differences between tropical and temperate stream ecosystems Threats faced by tropical stream ecosystems and possible conservation actions Descriptions and synstheses life-histories and breeding patterns of major aquatic consumers (fishes, invertebrates)

The Cichlid Fishes of the Great Lakes of Africa: Their Biology and Evolution

Author : Geoffrey Fryer
Publisher :
ISBN 13 :
Total Pages : 698 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis The Cichlid Fishes of the Great Lakes of Africa: Their Biology and Evolution by : Geoffrey Fryer

Download or read book The Cichlid Fishes of the Great Lakes of Africa: Their Biology and Evolution written by Geoffrey Fryer and published by . This book was released on 1972 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Food Webs at the Landscape Level

Author : Gary A. Polis
Publisher : University of Chicago Press
ISBN 13 : 0226673278
Total Pages : 566 pages
Book Rating : 4.2/5 (266 download)

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Book Synopsis Food Webs at the Landscape Level by : Gary A. Polis

Download or read book Food Webs at the Landscape Level written by Gary A. Polis and published by University of Chicago Press. This book was released on 2004-02-22 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paying special attention to the fertile boundaries between terrestrial, freshwater, and marine ecosystems, this work shows not only what this new methodology means for ecology, conservation, and agriculture but also serves as a fitting tribute to Gary Polis and his major contributions to the field

Dynamic Food Webs

Author : Peter C de Ruiter
Publisher : Elsevier
ISBN 13 : 0080460941
Total Pages : 616 pages
Book Rating : 4.0/5 (84 download)

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Book Synopsis Dynamic Food Webs by : Peter C de Ruiter

Download or read book Dynamic Food Webs written by Peter C de Ruiter and published by Elsevier. This book was released on 2005-12-20 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Food Webs challenges us to rethink what factors may determine ecological and evolutionary pathways of food web development. It touches upon the intriguing idea that trophic interactions drive patterns and dynamics at different levels of biological organization: dynamics in species composition, dynamics in population life-history parameters and abundances, and dynamics in individual growth, size and behavior. These dynamics are shown to be strongly interrelated governing food web structure and stability and the role of populations and communities play in ecosystem functioning. Dynamic Food Webs not only offers over 100 illustrations, but also contains 8 riveting sections devoted to an understanding of how to manage the effects of environmental change, the protection of biological diversity and the sustainable use of natural resources. Dynamic Food Webs is a volume in the Theoretical Ecology series. Relates dynamics on different levels of biological organization: individuals, populations, and communities Deals with empirical and theoretical approaches Discusses the role of community food webs in ecosystem functioning Proposes methods to assess the effects of environmental change on the structure of biological communities and ecosystem functioning Offers an analyses of the relationship between complexity and stability in food webs

Costa Rican Ecosystems

Author : Maarten Kappelle
Publisher : University of Chicago Press
ISBN 13 : 022627893X
Total Pages : 798 pages
Book Rating : 4.2/5 (262 download)

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Book Synopsis Costa Rican Ecosystems by : Maarten Kappelle

Download or read book Costa Rican Ecosystems written by Maarten Kappelle and published by University of Chicago Press. This book was released on 2016-04-15 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1502, Christopher Columbus named Costa Rica, and while gold and silver never materialized to justify the moniker of rich coast in purely economic terms, scientists and ecotravelers alike have long appreciated its incredible wealth. Wealth in Costa Rica is best measured by its biodiversityhome to a dizzying number of plants and animals, many endemic, it s a country that has long encouraged and welcomed researchers from the world over, and is exemplary in the creation and commitment to indigenous conservation and management programs. Costa Rica is considered to have the best preserved natural resources in Latin America. Approximately nine percent (about 1,000,000 acres) of Costa Rica has been protected in 15 national parks, and a comparable amount of land is protected as wildlife refuges, forest reserves or Indian reservations. This long-awaited synthesis of Costa Rican ecosystems is an authoritative presentation of the paleoecology, biogeography, structure, conservation, and sustainable use of Costa Rica s ecosystems. It systematically covers the entire range of Costa Rica s natural and managed, terrestrial, freshwater and marine ecosystems, including its island systems (Cocos Islands), the Atlantic and Pacific oceans and shores (coasts, coral reefs, mangrove forests), its lowlands (dry, season and wet forests), its highlands (the northern volcanoes and southern Talamanca s), and its estuaries, rivers, lakes, swamps and bogs. The volume s integrated, comprehensive format will be welcomed by tropical and temperate biologists alike, by biogeographers, plant and animal ecologists, marine biologists, conservation biologists, foresters, policy-makers and all scientists, natural history specialists and all with an interest in Costa Rica s ecosystems."

Fish Communities in Tropical Freshwaters

Author : Ro McConnell
Publisher : Longman Publishing Group
ISBN 13 :
Total Pages : 364 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Fish Communities in Tropical Freshwaters by : Ro McConnell

Download or read book Fish Communities in Tropical Freshwaters written by Ro McConnell and published by Longman Publishing Group. This book was released on 1975 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Freshwater fish faunas of tropical regions and their distributions. Equatorial forest rivers: ecological conditions and fish communities. Seasonal rivers in the tropics: ecological conditions and fish communities. Lacustrine fish communities-I The great lakes of Eastern Africa. II Some other African lakes. Manmade lakes. The production of tropical freswater fishes for food. Reactions of fishes to conditions in tropical freswaters. Community development.

Inland Fisheries

Author :
Publisher : John Wiley & Sons
ISBN 13 : 0470995688
Total Pages : 384 pages
Book Rating : 4.4/5 (79 download)

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Book Synopsis Inland Fisheries by :

Download or read book Inland Fisheries written by and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current high demand for fish and increased awareness of the role of the environment in supporting human well being has led to a situation where attitudes to inland water resources are changing rapidly. Trends in resource use and environmental impact are very evident in inland waters which are particularly vulnerable as they act as collectors of all the activities occurring in their basins and rank as some of the most endangered ecosystems in the world. The principle changes influencing the evolution of the aquatic resource for fisheries are described in this book, which has been compiled for the Food and Agriculture Organization of the United Nations.