Download or read book Genetics Evolution and Conservation of Neotropical Fishes written by Rodrigo A. Torres and published by Frontiers Media SA. This book was released on 2020-01-21 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fish represent the most ancestral and specious group of vertebrates, and occupy more diverse aquatic environments around the world. Ichthyofauna is extremely diverse, especially in megadiverse countries occupying biogeographical regions such as the Neotropical Region, which covers an extensive area between North and South America. Much of this biodiversity will be extinct, even before science knows any aspect of its biology. Like this, Neotropical fish genetics started in the end of the 70’s with papers studying the chromosomes of Hoplias malabaricus (Family Erythrinidae) and the karyotype variation among three genera of the family Anostomidae. The topic at that time was concentrated in two Institutions from the state of São Paulo, Southeastern Brazil. In the middle 80’s, the first Symposium on Neotropical Fish Cytogenetics was organized. Nowadays, the field of Neotropical Fish Genetics is present in Brazil, Colombia, Argentina, Uruguai, Venezula, Chile, and Equador, as well as outside South America in Panama, Mexico, USA, Canada, Czech Republic, Germany, and Spain. The research developed in cytogenetics has focused mainly on karyotype evolution and cytotaxonomy, chromosome structure and, more recently, cytogenomics. In relation to the use of molecular markers, support has been sought for the management of populations for conservation or production in captivity. In addition, many studies have been carried out with the aim of establishing supra-specific phylogenetic relationships and clarifying species distribution scenarios by phylogeographic modeling. The genome and transcriptome of some model species begin to emerge as extremely promising and informative areas for neotropical fish. In 2017, the Neotropical fish genetics research community celebrates the 30th anniversary of its main Meeting (today entitled Symposium on Neotropical Fish Genetics and Cytogenetics). This Research Topic is part of this celebration and aims at reporting the state of the art and its current advances in the frontier of knowledge in genetics, evolution, and conservation of neotropical fish, as well as to detect the challenges to be overcome in the next years.

Download or read book Conservation Genetics in the Neotropics written by Pedro M. Galetti Jr. and published by Springer Nature. This book was released on 2023-08-29 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores how genetics and the new technologies in genomics have been used for conservation of plants and animals in the Neotropics. It shows the new perspective for conservation genetics beyond the use of theoretical and methods in genetics at species level and presents how genetics and genomics can be used for assessing communities. Conservation genetics and genomics are presented as a helpful field of study for resolving taxonomic uncertainties and hidden biodiversity, understanding populations and extinction risk, genetic management, wildlife forensic genetics, assessing biology and molecular ecology, assessing communities, conservation genomics and the use of conservation biology and genetics in science learning, highlighting case studies in the Neotropics. Applications of conservation genetics for management or policy, decision making, planning, and implementation of conservation practice in the Neotropics are addressed across chapters. This book will interest to researchers and students in conservation genetics and biology conservation interested in the Neotropics. Stakeholders and decision makers in conservation biology may also find this book useful.

Download or read book Biology and Physiology of Freshwater Neotropical Fish written by Bernardo Baldisserotto and published by Academic Press. This book was released on 2019-11-09 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology and Physiology of Freshwater Neotropical Fish is the all-inclusive guide to fish species prevalent in the neotropical realm. It provides the most updated systematics, classification, anatomical, behavioral, genetic, and functioning systems information on freshwater neotropical fish species. This book begins by analyzing the differences in phylogeny, anatomy, and behaviour of neotropical fish. Systems such as cardiovascular, respiratory, renal, digestive, reproductive, muscular, and endocrine are described in detail. This book also looks at the effects of stress on fish immune systems, and how color and pigmentation play into physiology and species differentiation. Biology and Physiology of Freshwater Neotropical Fish is a must-have for fish biologists and zoologists. Students in zoology, ichthyology, and fish farming will also find this book useful for its coverage of some of the world's rarest and least-known fish species. - Features chapters written by top neotropical fish researchers and specialists - Discusses environmental effects on neotropical fishes, including climate change and pollution - Details the phylogenetic occurrence of electroreceptors and electric organs in fish

Download or read book Genetic Resources of Neotropical Fishes written by Alexandre W. S. Hilsdorf and published by Springer. This book was released on 2017-06-08 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to systematize and discuss population genetic studies of freshwater fish in a region that harbors the greatest diversity of species among all inland water ecosystems. This volume explores the genetic evaluation for a number of orders, families and species of Neotropical fishes, and provides an overview on genetic resources and diversity and their relationships with fish domestication, breeding, and food production.

Download or read book Biological Resources of Water written by Sajal Ray and published by BoD – Books on Demand. This book was released on 2018-04-25 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is divided into two sections and represents the current trend of research in aquatic bioresource. In the section "Biology, Ecology and Physiological Chemistry", high-impact articles are contributed on reproduction, population genetics, evolution, biodiversity, biology and ecology of different aquatic faunas. Physiological chemistry of lipid, bioactive pharmaceuticals and chemical ecological aspects of aquatic organisms were discussed. In the section entitled "Conservation and Sustainable Management", authors highlighted conservation- and management-related issues of various bioresources in different regions of the earth. The book mentions the biological, ecological, physiological and genetic significance of aquatic organisms with resource potential. The authors stressed on rational utilisation and management of bioresource ensuring minimal damage of the aquatic ecosystem. This book would provide a direction towards sustainable ecological management of bioresource.

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.

Download or read book Application of Fishes as Biological Models in Genetic Studies written by Tony Silveira and published by Frontiers Media SA. This book was released on 2023-03-30 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although Gregor Mendel is considered the father of genetics, he has never taken the credit for his principles on heredity. Mendel's treatises, though they were part of the collection of the largest European libraries in the 19th century, were only rediscovered in 1900, 16 years after his death. Mendel's revolutionary ideas would have given greater strength to the formulation of Charles Darwin's ideas about common descent and gradual evolution through natural selection presented in 1859 in "The Origin of Species." However, Darwin was not totally ignorant of the possibility of genetic heredity. He even described “invisible characters” emerging in atavistic situations and named his hypothetical particle of heredity as “gemmules.” It is remarkable that the “invisible characters” and “gemmules” referred by Darwin are what we now know as genes – a term coined in 1909 by Wilhelm Johannsen that was widely accepted. During the 1930s and 40s, the findings of great proponents of genetics and evolution such as Mendel, Darwin, Wallace, Fisher, Haldane, Wright, Dobzhansky, Mayr, and several others were brought together to form the neo-Darwinian synthesis. In addition, in the 40s, genetics started its molecular revolution, which in the late 70s, driven by sequencing technology, gave rise to the genomics era. It took approximately 100 years to formulate the theoretical foundations of genetics to understand how information is transmitted to the next generations. Now, less than 45 years after the beginning of the genomic era, science is fully capable of identifying complete genomes. Among animals, fishes are one of the most relevant groups in genetic studies. Although fish studies were important in applying and corroborating Mendel's findings in the first decades of the 19th century, these studies contributed little to the development of classical genetics. However, fish have been of great importance for the development of molecular genetics. Several species such as Carassius auratus, Oryzias latipes, and Danio rerio (among several others of productive interest such as Salmo salar, Oreochromis niloticus, and Cyprinus carpio) have been used around the world as biological models. These models can be used for the study of genes and genomes, epigenetics, and genetic expression. Genetic studies using fish, in addition to increasing genetic knowledge about the species, also serve for a better general understanding of the physiology of metabolic pathways, diseases, evolution, systematics, dispersion, creation, and selection of individuals and lineages. Considering this, this Research Topic aims to bring together studies that present applications of fish as targets in genetic studies.

Download or read book Cryobiology for South American Neotropical Fish Species written by Danilo P. Streit Jr. and published by CRC Press. This book was released on 2024-11-15 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents updated information on the cryopreservation of semen, embryos, germ cells and ovarian follicles of neotropical fish from South America. The chapters address the importance of developing germplasm banks of South American fish, both for commercial production and for conservation of ichthyofauna. This book has been designed mainly to provide a historical review of the 40 years of reproductive cryobiology research on South American fish species. The work is aimed at students, researchers and technicians involved in the areas related to the book's theme. The editors invite the readers to delve into dense technical knowledge, developed by renowned researchers.

Download or read book Encyclopedia of the Anthropocene written by and published by Elsevier. This book was released on 2017-11-27 with total page 2290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of the Anthropocene, Five Volume Set presents a currency-based, global synthesis cataloguing the impact of humanity’s global ecological footprint. Covering a multitude of aspects related to Climate Change, Biodiversity, Contaminants, Geological, Energy and Ethics, leading scientists provide foundational essays that enable researchers to define and scrutinize information, ideas, relationships, meanings and ideas within the Anthropocene concept. Questions widely debated among scientists, humanists, conservationists, politicians and others are included, providing discussion on when the Anthropocene began, what to call it, whether it should be considered an official geological epoch, whether it can be contained in time, and how it will affect future generations. Although the idea that humanity has driven the planet into a new geological epoch has been around since the dawn of the 20th century, the term ‘Anthropocene’ was only first used by ecologist Eugene Stoermer in the 1980s, and hence popularized in its current meaning by atmospheric chemist Paul Crutzen in 2000. Presents comprehensive and systematic coverage of topics related to the Anthropocene, with a focus on the Geosciences and Environmental science Includes point-counterpoint articles debating key aspects of the Anthropocene, giving users an even-handed navigation of this complex area Provides historic, seminal papers and essays from leading scientists and philosophers who demonstrate changes in the Anthropocene concept over time

Download or read book The State of the World s Aquatic Genetic Resources for Food and Agriculture written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2019-07-24 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conservation, sustainable use and development of aquatic genetic resources (AqGR) is critical to the future supply of fish. The State of the World’s Aquatic Genetic Resources for Food and Agriculture is the first ever global assessment of these resources, with the scope of this first Report being limited to cultured AqGR and their wild relatives, within national jurisdiction. The Report draws on 92 reports from FAO member countries and five specially commissioned thematic background studies. The reporting countries are responsible for 96 percent of global aquaculture production. The Report sets the context with a review of the state of world’s aquaculture and fisheries and includes overviews of the uses and exchanges of AqGR, the drivers and trends impacting AqGR and the extent of ex situ and in situ conservation efforts. The Report also investigates the roles of stakeholders in AqGR and the levels of activity in research, education, training and extension, and reviews national policies and the levels of regional and international cooperation on AqGR. Finally, needs and challenges are assessed in the context of the findings from the data collected from the countries. The Report represents a snapshot of the present status of AqGR and forms a valuable technical reference document, particularly where it presents standardized key terminology and concepts.

Download or read book Historical Biogeography of Neotropical Freshwater Fishes written by James S. Albert and published by Univ of California Press. This book was released on 2011-03-08 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Full of the details we ichthyologists love, this book will clearly be a standard reference on South American fishes for decades to come. The amazingly detailed glossary alone may well be worth the price of the book!” --Peter B. Moyle, author of Inland Fishes of California “A major contribution to our understanding of multiple aspects of the Neotropical freshwater fish fauna. The book will be of interest not only to ichthyologists, but also to a broader audience of researchers working on freshwater organisms and general biogeographic patterns.”--Richard P. Vari, National Museum of Natural History, Smithsonian Institution “An up-to-date summary of our knowledge of a major continental biodiversity area, that should attract a wide variety of readers."--William Fink, University of Michigan “Successfully brings together disparate information and introduces new data and analyses, giving a vast overview of neotropical freshwater fishes.” --Brian Crother, Southeastern Louisiana University

Download or read book Advances in Genetics written by and published by Academic Press. This book was released on 2012-12-31 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of genetics is rapidly evolving and new medical breakthroughs are occuring as a result of advances in knowledge of genetics. This series continually publishes important reviews of the broadest interest to geneticists and their colleagues in affiliated disciplines. - Includes methods for testing with ethical, legal, and social implications

Download or read book Mechanisms Driving Karyotype Evolution and Genomic Architecture written by Aurora Ruiz-Herrera and published by MDPI. This book was released on 2021-08-31 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding of the origin of species and their adaptability to new environments is one of the main questions in biology. This is fueled by the ongoing debate on species concepts and facilitated by the availability of an unprecedented large number of genomic resources. Genomes are organized into chromosomes, where significant variations in number and morphology are observed among species due to large-scale structural variants such as inversions, translocations, fusions, and fissions. This genomic reshuffling provides, in the long term, new chromosomal forms on which natural selection can act upon, contributing to the origin of biodiversity. This book contains mainly articles, reviews, and an opinion piece that explore numerous aspects of genome plasticity among taxa that will help in understanding the dynamics of genome composition, the evolutionary relationships between species and, in the long run, speciation.

Download or read book Freshwater Fisheries Ecology written by John F. Craig and published by John Wiley & Sons. This book was released on 2016-01-12 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inland fisheries are vital for the livelihoods and food resources of humans worldwide but their importance is underestimated, probably because large numbers of small, local operators are involved. Freshwater Fisheries Ecology defines what we have globally, what we are going to lose and mitigate for, and what, given the right tools, we can save. To estimate potential production, the dynamics of freshwater ecosystems (rivers, lakes and estuaries) need to be understood. These dynamics are diverse, as are the earths freshwater fisheries resources (from boreal to tropical regions), and these influence how fisheries are both utilized and abused. Three main types of fisheries are illustrated within the book: artisanal, commercial and recreational, and the tools which have evolved for fisheries governance and management, including assessment methods, are described. The book also covers in detail fisheries development, providing information on improving fisheries through environmental and habitat evaluation, enhancement and rehabilitation, aquaculture, genetically modified fishes and sustainability. The book thoroughly reviews the negative impacts on fisheries including excessive harvesting, climate change, toxicology, impoundments, barriers and abstractions, non-native species and eutrophication. Finally, key areas of future research are outlined. Freshwater Fisheries Ecology is truly a landmark publication, containing contributions from over 100 leading experts and supported by the Fisheries Society of the British Isles. The global approach makes this book essential reading for fish biologists, fisheries scientists and ecologists and upper level students in these disciplines. Libraries in all universities and research establishments where biological and fisheries sciences are studied and taught should have multiple copies of this hugely valuable resource. About the Editor John Craig is Editor-in-Chief of the Journal of Fish Biology and has an enormous range of expertise and a wealth of knowledge of freshwater fishes and their ecology, having studied them around the globe, including in Asia, North America, Africa, the Middle East and Europe. His particular interests have been in population dynamics and life history strategies. He is a Fellow of the Linnean Society of London and the Royal Society of Biology.

Download or read book Theoretical Reservoir Ecology and Its Applications written by J. G. Tundisi and published by . This book was released on 1999 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reservoir design and operation: limnological implications and management opportunities. Self-organization, direct and indirect effects. Main processes in the water column determined by wind and rainfall at Lobo (Broa) Reservoir: implications for phosphorus cycling. The relationship between fish yield and stocking density in reservoirs from tropical and temperate regions. Suspended clay: its role in reservoir productivity. Predictability of seasonal and diel events in tropical and temperate lakes and reservoirs. Heat bidgets, thermal structure and dissolved oxygen in Brazilian reservoirs. Numerical modelling and reservoir management: applications of the DYRESM model. A simplified 2D-vertical plane numerical solution for reservoir flows. Seasonal horizontal gra dients of dissolved oxygen in a temperate austral reservoir. Patterns of colonization in neotropical reservoirs, and prognoses on aging. Impacts of protistan grazing on bacterial dynamics and composition in reservoirs of different trophy. Limnological aspects of Sicilian reservoirs: a comparative, ecosystemic approach. Longitudinal processes in Canyon type reservoirs: the case of Sau (N.E. Spain). Limnological differences between a shallow pre-reservoir and a shallow lake: a case study of the Upper Kis-Balaton reservoir and Lake Balaton. Retention time as a key variable of reservoir limnology. The effect of changing flushing rates on development of late summer Aphanizomenon and Microcystis populations in a shallow lake, Muggelsee, Berlin, Germany. The cascading reservoir continuum concept (CRCC) and its application to the river Tiete-basin, Sao Paulo State, Brazil. Phytoplankton assemblages in reservoirs. Ecological theory applied to reservoir zooplankton. The species richness of reservoir plankton and the effect of reservoirs on plankton dispersal (with particular emphasis on rotifers and cladocerans). Water quality and fishery management in lake Kinneret, Israel. Theoretical basis for reservoir management. Fish effects on reservoir trophic relationships. Biomanipulation and ecological modelling. Reservoir ecosystem functioning: theory and application.

Download or read book Aquaculture and Fisheries Biotechnology written by Rex A. Dunham and published by CABI. This book was released on 2023-02-28 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: The genetic improvement of fish for aquaculture and related fisheries has seen huge advances over recent years. Building upon the previous two editions of Aquaculture and Fisheries Biotechnology: Genetic Approaches, this 3rd edition offers a presentation of traditional selective breeding, modern genetic biotechnology, genomics, gene transfer and gene editing, and the latest developments in genetic biotechnology such as epigenetics, xenogenesis and genome-wide association study coupled with commercial application, the impact of government regulation and expectations for the future. It provides a firm grounding in relevant aspects of classical genetics, before focusing on particular aspects such as sex reversal and breeding as applied in aquaculture and fisheries. It also explores how more recent molecular genetics, genomics and biotechnology techniques can be used and combined in improvement programmes for fish and aquaculture species. A glossary explains the latest terminology used in biotechnology and genetics. This book will be useful for research scientists and students in marine biotechnology, aquaculture biotechnology, and fish genetics and breeding.

Download or read book Action Before Extinction written by World Fisheries Trust and published by . This book was released on 1998 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: