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Genetic Resources of Neotropical Fishes

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Release : 2017-06-08
Genre : Science
Kind : eBook
Book Rating : 382/5 ( reviews)

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Book Synopsis Genetic Resources of Neotropical Fishes by : Alexandre W. S. Hilsdorf

Download or read book Genetic Resources of Neotropical Fishes written by Alexandre W. S. Hilsdorf. This book was released on 2017-06-08. 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.

Genetic Resources of Neotropical Fishes

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Author :
Release : 2018-05
Genre :
Kind : eBook
Book Rating : 112/5 ( reviews)

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Book Synopsis Genetic Resources of Neotropical Fishes by :

Download or read book Genetic Resources of Neotropical Fishes written by . This book was released on 2018-05. Available in PDF, EPUB and Kindle. Book excerpt: The fish faunas of continental South and Central America constitute one of the greatest concentrations of aquatic diversity on Earth, consisting of about 10 percent of all living vertebrate species. National policies have historically encouraged unsustainable practices, and recent decades have witnessed a sharp increase in harmful activities. Conservation of the Neotropical fish diversity is a key target to maintain world fish functional diversity, but this should not hide the pressing need to conserve the vulnerable fish faunas of the rest of the world, in which functional diversity is to a large extent supported by threatened species.Genetic Resources of Neotropical Fishes is focused on identifying and differentiating the myriad species, circumscribing their habitats and geographic ranges, and resolving their phylogenetic interrelationships. It 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. Neotropical fish species show an amazing variety of sex chromosome systems, where different stages of differentiation can be found, ranging from homomorphic to highly differentiated sex chromosomes. Here, we draw attention on the impact of recent developments in molecular cytogenetic analyses that helped to elucidate many unknown questions about fish sex chromosome evolution, using excellent characiform models occurring in the Neotropical region, namely the Erythrinidae family and the Triportheus genus.In relation to populations in Neotropical marine waters, the studies have shown the presence of cryptic species, which has important implications for fishery management. Different levels of genetic structuring can be found among Neotropical freshwater migratory fish species. This raises important implications for fish population genetic diversity and consequently its sustainable utilization in inland fisheries and aquaculture, specifically for conservation of ichthyo-diversity and survival. This book serves as beneficial guide to students, academic researchers and fish scientists worldwide to know more about the genetic value of the richest fish diversity in the world.

Genetics, Evolution, and Conservation of Neotropical Fishes

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Author :
Release : 2020-01-21
Genre :
Kind : eBook
Book Rating : 357/5 ( reviews)

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Book Synopsis Genetics, Evolution, and Conservation of Neotropical Fishes by : Rodrigo A. Torres

Download or read book Genetics, Evolution, and Conservation of Neotropical Fishes written by Rodrigo A. Torres. This book was released on 2020-01-21. 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.

Biology and Physiology of Freshwater Neotropical Fish

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Author :
Release : 2019-11-09
Genre : Nature
Kind : eBook
Book Rating : 735/5 ( reviews)

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Book Synopsis Biology and Physiology of Freshwater Neotropical Fish by : Bernardo Baldisserotto

Download or read book Biology and Physiology of Freshwater Neotropical Fish written by Bernardo Baldisserotto. This book was released on 2019-11-09. 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

Cryobiology for South American Neotropical Fish Species

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Release : 2024-11-15
Genre : Nature
Kind : eBook
Book Rating : 720/5 ( reviews)

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Book Synopsis Cryobiology for South American Neotropical Fish Species by : Danilo P. Streit Jr.

Download or read book Cryobiology for South American Neotropical Fish Species written by Danilo P. Streit Jr.. This book was released on 2024-11-15. 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.

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